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Homonym: A*
  • Search results: 975 homonyms found
Formal homonyms
 
Senior homonymJunior homonym
 
ICZN:Acanthella (Genus) Schmidt, 1862 - sponge ICZN:Acanthella (Genus) Allman, 1883, nom. illeg. see (Genus) Cladacanthella Calder, 1997 - invertebrate
ICZN:Acanthidium (Genus) Lowe, 1839 - fish ICZN:Acanthidium (Genus) Montrouzier, 1858, nom. illeg. see (Genus) Acanthidiellum Kirkaldy, 1904 - bug
ICZN:Acanthidium (Genus) Lowe, 1839 - fish ICZN:Acanthidium (Genus) Michener & Griswold, 1994, nom. illeg. see (Genus) Acedanthidium Michener, 2000 - bee
ICZN:Acanthidium (Genus) Montrouzier, 1858, nom. illeg. see (Genus) Acanthidiellum Kirkaldy, 1904 - bug ICZN:Acanthidium (Genus) Michener & Griswold, 1994, nom. illeg. see (Genus) Acedanthidium Michener, 2000 - bee
ICZN:Acanthocephalus (Genus) Koelreuter, 1771 - invertebrate ICZN:Acanthocephalus (Genus) A. von Frantzius, 1848, nom. illeg. - protozoan
ICZN:Acanthocerus (Genus) Palisot de Beauvois, 1818 - bug Zoology:Acanthocerus (Genus) MacLeay, 1819, nom. illeg. see (Genus) Ceratocanthus White, 1842 - beetle
ICZN:Acanthognathus (Genus) Mayr, 1887 - ant ICZN:Acanthognathus (Genus) Duncker, 1912, nom. illeg. - fish
ICZN:Acanthopus (Genus) Klug, 1807 - bee ICZN:Acanthopus (Genus) Vernet, 1877, nom. illeg. - crustacean
ICBN:Acanthosphaera (Genus) Lemmermann (1899) - alga ICBN:Acanthosphaera (Genus) Warb. (1907), nom. illeg. see (Genus) Naucleopsis Miquel, in Mart. (1853) - plant
ICZN:Acerella (Subgenus) Berlese, 1909 see (Genus) Acerella (Berlese, 1909) Rusek, 1974 - arthropod ICZN:Acerella (Genus) Allen, 1971, nom. illeg. see (Genus) Ephacerella Paclt, 1994 - insect
ICBN:Acetabularia (Genus) J.V. Lamour. (1812) - alga ICBN:Acetabularia (Genus) (Berk.) Massee (1893), nom. illeg. see (Genus) Cyphellopus Fayod (1889), nom. dub. - fungus
ICNP:Achromobacter (Genus) Yabuuchi and Yano 1981 - prokaryote ICNP:Achromobacter (Genus) Bergey et al. 1923 - prokaryote
ICNP:Achromobacter (Genus) Yabuuchi and Yano 1981 - prokaryote ICNP:Achromobacter (Genus) Bergey et al. 1923 - prokaryote
ICZN:Actinia maculata M. Bruguière, 1792 - invertebrate ICZN:Actinia maculata Adams, 1800, nom. illeg. see Adamsia palliata (J.P. Bohadsch, 1761 ex O.F. Müller, 1776) - invertebrate
ICZN:Actinophrys marina Dujardin, 1841 see Actinophrys sol (Müller, 1773) Ehrenberg, 1830 - alga ICZN:Actinophrys marina Mikrjukov, 1996, nom. illeg. see Actinophrys tauryanini K.A. Mikrjukov & D.J. Patterson, 2001 - alga
ICZN:Actinophrys marina Dujardin, 1841 see Actinophrys sol (Müller, 1773) Ehrenberg, 1830 - alga ICZN:Actinophrys marina Mikrjukov, 1996, nom. illeg. see Actinophrys tauryanini K.A. Mikrjukov & D.J. Patterson, 2001 - alga
ICZN:Adamas (Genus) Malaise, 1945 - insect ICZN:Adamas (Genus) Huber, 1979, nom. illeg. see (Genus) Fenerbahce Özdikmen et al., 2006 - fish
ICZN:Adamas (Genus) Malaise, 1945 - insect ICZN:Adamas (Genus) Huber, 1979, nom. illeg. see (Genus) Fenerbahce Özdikmen et al., 2006 - fish
ICZN:Adelina (Genus) Dejean, 1835, nom. nud. - beetle ICZN:Adelina (Genus) Hesse, 1911, nom. illeg. - protozoan
ICZN:Adelomyia (Genus) Bonaparte, 1854, nom. nud. - bird ICZN:Adelomyia (Genus) Ulmer, 1912, nom. illeg. - insect
ICBN:Agaricomycotina (Subphylum) Doweld (2001) - fungus ICBN:Agaricomycotina (Subphylum) R. Bauer, Begerow, J.P. Samp., M. Weiß & Oberw. (2006), nom. inval. see (Class) Basidiomycetes G.Winter (1880) - fungus
ICBN:Ainsworthia (Genus) Boissier (1844) - plant ICBN:Ainsworthia (Genus) Bat. & Cif. (1962) see (Genus) Phaeosaccardinula Henn. (1905) - fungus
ICZN:Albionella (Genus) Chickering, 1946 - arachnid ICZN:Albionella (Genus) Kabata, 1979, nom. illeg. see (Genus) Neoalbionella H. Özdikmen, 2008 - crustacean
ICZN:Alcinoe (Genus) Rang, 1828 - invertebrate ICZN:Alcinoe (Genus) Delle Chiaje, 1829[1830], nom. illeg. see (Genus) Leucothea Mertens, 1833 - invertebrate
ICZN:Alloneura (Genus) Rondani, 1856 - fly ICZN:Alloneura (Genus) Selys, 1860, nom. illeg. see (Genus) Caconeura Kirby, 1890 - insect
ICZN:Alloneura (Genus) Rondani, 1856 - fly ICZN:Alloneura (Genus) Selys, 1860, nom. illeg. see (Genus) Caconeura Kirby, 1890 - insect
ICBN:Alpinia (Genus) L. (1753), nom. rej. - plant ICBN:Alpinia (Genus) Roxburgh (1810), nom. cons. - plant
ICBN:Amanita (Genus) Dill. ex Boehm. (1760), nom. rej. see (Genus) Agaricus L. (1753), nom. sanct., nom. cons. - fungus ICBN:Amanita (Genus) Pers. (1797), nom. cons. - fungus
ICZN:Amaurina (Genus) Kolbe, 1895 - beetle ICZN:Amaurina (Genus) Aurivillius, 1910, nom. illeg. see (Genus) Amauris Hübner, 1816 - butterfly
ICZN:Ammobatoides (Genus) Radoszkowski, 1868[1867] - bee ICZN:Ammobatoides (Genus) Schenk, 1869, nom. illeg. see (Genus) Ammobates Latreille, 1809 - bee
ICBN:Amomum (Genus) L. (1753), nom. rej. - plant ICBN:Amomum (Genus) Roxburgh (1820), nom. cons. - plant
ICZN:Amphinome (Genus) Bruguière, 1789[1792] - annelid ICZN:Amphinome (Genus) Meigen, 1800, nom. illeg. see (Genus) Limonia Meigen, 1803 - fly
ICZN:Amphiporidae (Family) McIntosh, 1874 - invertebrate ICZN:Amphiporidae (Family) Ruhkin, 1930s - sponge
ICZN:Amymone (Genus) Müller, 1776 - crustacean ICZN:Amymone (Genus) Claus, 1860, nom. illeg. see (Genus) Tegastes Norman, 1903 - crustacean
ICZN:Amymone (Genus) Müller, 1776 - crustacean ICZN:Amymone (Genus) Claus, 1863, nom. illeg. see (Genus) Parategastes G.O. Sars, 1904 - crustacean
ICZN:Amymone (Genus) Claus, 1860, nom. illeg. see (Genus) Tegastes Norman, 1903 - crustacean ICZN:Amymone (Genus) Claus, 1863, nom. illeg. see (Genus) Parategastes G.O. Sars, 1904 - crustacean
ICBN:Anacardium (Genus) L. (1753) - plant ICBN:Anacardium (Genus) Lam., 1783, nom. illeg. - plant
ICZN:Anadara (Genus) Gray, 1847 - mollusc ICZN:Anadara (Genus) Moore, 1883, nom. illeg. see (Genus) Euploea Fabricius, 1807 - butterfly
ICZN:Anaides (Genus) Westwood, 1842 - beetle ICZN:Anaides (Genus) Baird, 1851, nom. illeg. see (Genus) Aneides Baird, 1851 - amphibian
ICZN:Anaspididae (Family) Mulsant, 1856 see (Subfamily) Anaspidinae Mulsant, 1856 - beetle ICZN:Anaspididae (Family) Thomson, 1894 - crustacean
ICZN:Ancalagon (Genus) Conway Morris, 1977 - invertebrate ICZN:Ancalagon (Genus) van Valen, 1978, nom. illeg. see (Genus) †Ankalagon van Valen, 1980 - mammal
ICZN:Ancorina (Genus) Schmidt, 1862 - sponge ICZN:Ancorina (Genus) - protozoan
ICZN:Androgynella (Genus) Cockerell, 1911 - insect ICZN:Androgynella (Genus) Gutu, 2006, nom. illeg. - crustacean
ICZN:Anepsius (Genus) LeConte, 1851 - beetle ICZN:Anepsius (Genus) Haliday ex Loew, 1857, nom. illeg. see (Genus) Anepsiomyia Bezzi, 1902 - fly
ICZN:Anomoea (Genus) Chevrolat ex Dejean, 1835, nom. emend. - beetle ICZN:Anomoea (Genus) Lacordaire, 1848, nom. illeg. see (Genus) Anomoia Walker, 1835 - fly
ICZN:Anomoia (Genus) Walker, 1835 - fly ICZN:Anomoia (Genus) Chevrolat ex Dejean, 1835, nom. illeg. see (Genus) Anomoea Chevrolat ex Dejean, 1835, nom. emend. - beetle
ICZN:Anonymus (Genus) Lang, 1884 - flatworm ICZN:Anonymus (Genus) Storer, 1988 - mammal
ICZN:Anops (Genus) Oken, 1815 see (Genus) Haemobaphes Steenstrup & Lütken, 1861 - crustacean ICZN:Anops (Genus) Bell, 1833, nom. illeg. - reptile
ICZN:Anoura (Genus) Gray, 1838 - mammal ICZN:Anoura (Genus) Gervais, 1843, nom. illeg. - arthropod
ICZN:Anthophila (Genus) Haworth, 1811 - moth ICZN:Anthophila (Genus) Ochsenheimer, 1816, nom. illeg. see (Genus) Thalpochares Lederer, 1853 - moth
ICZN:Apis subterranea Linnaeus, 1758 - bee ICZN:Apis subterranea C. Linnaeus, 1758, nom. illeg. - bee
ICZN:Apis surinamensis Linnaeus, 1758 - bee ICZN:Apis surinamensis C. Linnaeus, 1758, nom. illeg. - bee
ICZN:Apteronina (Genus) Wasmann, 1901 - beetle ICZN:Apteronina (Genus) Borgmeier, 1958, nom. illeg. see (Genus) Apteronilla Borgmeier, 1959 - fly
ICZN:Archiclops (Genus) Karsch, 1891 - insect ICZN:Archiclops (Genus) Bischof, 1900, nom. illeg. - fly
ICZN:Arge (Genus) Schrank, 1802 - wasp ICZN:Arge (Genus) Hübner, [1819], nom. illeg. see (Genus) Melanargia Meigen, 1828 - butterfly
ICZN:Argidae (Family) Konow, 1890 - wasp ICZN:Argidae (Family) see (Family) Astroblepidae Bleeker, 1862 - fish
ICZN:Aricia (Genus) Reichenbach, 1817 see (Subgenus) Aricia (Gray, 1837), nom. illeg. - butterfly ICZN:Aricia (Genus) Savigny, 1822 see (Genus) Orbinia de Quatrefages, 1865 - annelid
ICZN:Aridella (Genus) Kasparyan, 1970 - wasp ICZN:Aridella (Genus) Saaristo, 2002, nom. illeg. - arachnid
ICZN:Armandia (Genus) de Filippi, 1862 - annelid ICZN:Armandia (Genus) Blanchard, 1871 see (Genus) Bhutanitis Atkinson, 1873 - butterfly
ICZN:Armania (Genus) Dlussky, 1983 - wasp ICZN:Armania (Genus) Gabuniya & Dashzeveg, 1988, nom. illeg. - mammal
ICZN:Ascia (Genus) Scopoli, 1777 - butterfly ICZN:Ascia (Genus) Meigen, 1822, nom. illeg. see (Genus) Neoascia Williston, 1886 - fly
ICZN:Asymmetrura (Genus) Fariña, 1981 - mammal ICZN:Asymmetrura (Genus) Landry, 1991, nom. illeg. - moth
ICZN:Atelopus (Genus) Duméril & Bibron, 1841 - amphibian ICZN:Atelopus (Genus) Duméril & Bibron, 1841 see (Genus) Ateleopus Temminck & Schlegel, 1846 - fish
ICZN:Atopidae (Family) Hupé, 1953 - arthropod ICZN:Atopidae (Family) Hupé, 1953 see (Family) Rathouisiidae Heude, 1885 - mollusc
ICZN:Atractodes (Genus) Gravenhorst, 1829 - wasp ICZN:Atractodes (Genus) Germar, 1839, nom. illeg. see (Genus) Atractosomus Lacordaire, 1857 - beetle
ICZN:Atropos (Genus) Oken, 1815 see (Genus) Acherontia Laspeyres, 1809 - moth ICZN:Atropos (Genus) Leach, 1815 - insect
ICZN:Automolus (Genus) Reichenbach, 1853 - bird ICZN:Automolus (Genus) Burmeister, 1855, nom. illeg. see (Genus) Automolius Britton, 1978 - beetle
ICZN:Axiidae (Family) Huxley, 1879 - crustacean ICZN:Axiidae (Family) Rebel, 1919, nom. illeg. see (Family) Cimeliidae Chrétien, 1916 - moth
ICZN:Axiidae (Family) Huxley, 1879 - crustacean ICZN:Axiidae (Family) Rebel, 1919, nom. illeg. see (Family) Cimeliidae Chrétien, 1916 - moth
 
Formal homonyms
 
Senior homonymJunior homonym
 
ICZN:Aaata (Genus) Semenov-Tian-Shanskij, 1906 - beetle ICZN:Aaata (Genus) de Laubenfels, 1930, nom. illeg. see (Subgenus) Microciona Bowerbank, 1862 - sponge
ICZN:Abacodes (Genus) Thomson, 1858 - beetle ICZN:Abacodes (Genus) Jeannel, 1948, nom. illeg. - beetle
ICZN:Abalius (Genus) Cabanis, 1861 - bird ICZN:Abalius (Genus) Kraepelin, 1897, nom. illeg. - arachnid
ICZN:Abantiades (Genus) Herrich-Schäffer, 1856 - moth ICZN:Abantiades (Genus) Fairmaire, 1894, nom. illeg. - beetle
ICZN:Abantiades (Genus) Herrich-Schäffer, 1856 - moth ICZN:Abantiades (Genus) Broun, 1914, nom. illeg. see (Genus) Abantiadinus Schenkling, 1929 - beetle
ICZN:Abantiades (Genus) Fairmaire, 1894, nom. illeg. - beetle ICZN:Abantiades (Genus) Broun, 1914, nom. illeg. see (Genus) Abantiadinus Schenkling, 1929 - beetle
ICBN:Abapus (Genus) Adans. (1763) see (Genus) Gethyllis L. (1753) - plant ICBN:Abapus (Genus) Rafinesque (1838) see (Genus) Papiria Thunb. (1776) - plant
ICZN:Abarys (Genus) Agassiz, 1846 - beetle ICZN:Abarys (Genus) Turner, 1947, nom. illeg. see (Genus) Abareia Whalley, 1970 - moth
ICZN:Abas (Genus) Fennah, 1950 - bug ICZN:Abas (Genus) Núñez & Yáñez, 1984, nom. illeg. see (Genus) Liolaemus Wiegmann, 1834 - reptile
ICZN:Abascantus (Genus) Stål, 1864 - bug ICZN:Abascantus (Genus) Schaufuss, 1886, nom. illeg. see (Genus) Abascantodes Strand, 1928 - beetle
ICZN:Abbottina (Genus) Jordan & Fowler, 1903 - fish ICZN:Abbottina (Genus) McCulloch, 1977, nom. illeg. see (Genus) Nonion Montfort, 1808 - protist
ICZN:Abeillea (Genus) Simon, 1897 see (Genus) Abeillia Bonaparte, 1850 - bird ICZN:Abeillea (Genus) Sahlberg, 1908, nom. illeg. - beetle
ICZN:Abella (Genus) von Heyden, 1826 - arachnid ICZN:Abella (Genus) Walker, 1862, nom. illeg. - moth
ICZN:Abelterus (Genus) Stål, 1865 - bug ICZN:Abelterus (Genus) Heine & Reichenow, 1882-1890[1890], nom. illeg. - bird
ICZN:Abichia (Genus) Gemmellaro, 1888 - mollusc ICZN:Abichia (Genus) Andrusov, 1907, nom. illeg. - mollusc
ICZN:Abila (Genus) Gray, 1867 see (Subgenus) Microciona Bowerbank, 1862 - sponge ICZN:Abila (Genus) Stål, 1878, nom. illeg. see (Genus) Abilenia Strand, 1928 - insect
ICBN:Abola (Genus) Adans. (1763) see (Genus) Cinna L. (1753) - plant ICBN:Abola (Genus) Lindl. (1853) - plant
ICZN:Abrana (Genus) Strand, 1928 - mammal ICZN:Abrana (Genus) Parker, 1931, nom. illeg. see (Genus) Parkerana Dubois, 1984 - amphibian
ICZN:Abranchus (Genus) Boïé, 1824 see (Genus) Abrancha van Hasselt, 1824 - mollusc ICZN:Abranchus (Genus) Harlan, 1825, nom. illeg. - reptile
ICZN:Abranchus (Genus) Boïé, 1824 see (Genus) Abrancha van Hasselt, 1824 - mollusc ICZN:Abranchus (Genus) Johansson, 1896, nom. illeg. - annelid
ICZN:Abranchus (Genus) Harlan, 1825, nom. illeg. - reptile ICZN:Abranchus (Genus) Johansson, 1896, nom. illeg. - annelid
ICZN:Absentia (Genus) Togashi, 1990 - insect ICZN:Absentia (Genus) Huang, 2001, nom. illeg. - arachnid
ICZN:Absolonia (Genus) Börner, 1901 - arthropod ICZN:Absolonia (Genus) Roewer, 1915, nom. illeg. see (Genus) Abasola Strand, 1928 - arachnid
ICZN:Absyrtes (Genus) Guenée, 1857 - moth ICZN:Absyrtes (Genus) Brischke, 1880, nom. illeg. - insect
ICZN:Acacallis (Genus) Hübner, 1823 - moth ICZN:Acacallis (Genus) Pascoe, 1883, nom. illeg. see (Genus) Apocallus Marshall, 1939 - beetle
ICZN:Acachmena (Genus) Turner, 1908 - moth ICZN:Acachmena (Genus) Turner, 1911, nom. illeg. see (Genus) Cathetus Fletcher, 1979 - moth
ICZN:Acaerus (Genus) Pascoe, 1882 - beetle ICZN:Acaerus (Genus) Loginova, 1976, nom. illeg. - bug
ICZN:Acalanthis (Genus) Erichson, 1844 - beetle ICZN:Acalanthis (Genus) Gistl, 1848, nom. illeg. - arachnid
ICZN:Acalia (Genus) Gray, 1840 - echinoderm ICZN:Acalia (Genus) Guenée, 1845, nom. illeg. see (Genus) Lignyoptera Lederer, 1853 - moth
ICZN:Acamas (Genus) de Montfort, 1808 - mollusc ICZN:Acamas (Genus) Duchassaing & Michelotti, 1864, nom. illeg. see (Genus) Acamasina de Laubenfels, 1936 - sponge
ICZN:Acanthaspis (Genus) Amyot & Serville, 1843 - bug ICZN:Acanthaspis (Genus) Newberry, 1875, nom. illeg. see (Genus) Ohiodorulites Whitley, 1933 - fish
ICZN:Acanthechinus (Genus) Duncan & Sladen, 1882 - echinoderm ICZN:Acanthechinus (Genus) Stebbing, 1888, nom. illeg. - crustacean
ICZN:Acanthobrachys (Genus) Fieber, 1861[1860] - bug ICZN:Acanthobrachys (Genus) Lacordaire, 1863, nom. illeg. see (Genus) Acanthobrachis Jekel, 1853[1854] - beetle
ICZN:Acanthobracon (Genus) Kriechbaumer, 1900 - insect ICZN:Acanthobracon (Genus) Szépligeti, 1902, nom. illeg. - insect
ICZN:Acanthocampa (Genus) Packard, 1902 - moth ICZN:Acanthocampa (Genus) Dyar, 1905, nom. illeg. - moth
ICZN:Acanthocaris (Genus) Sim, 1872 - crustacean ICZN:Acanthocaris (Genus) Peach, 1883, nom. illeg. - crustacean
ICZN:Acanthocephalus (Genus) Koelreuter, 1771 - invertebrate ICZN:Acanthocephalus (Genus) Qiu, 1983, nom. illeg. - arthropod
ICZN:Acanthocephalus (Genus) A. von Frantzius, 1848, nom. illeg. - protozoan ICZN:Acanthocephalus (Genus) Qiu, 1983, nom. illeg. - arthropod
ICZN:Acanthochila (Genus) Mörch, 1868 - mollusc ICZN:Acanthochila (Genus) Stål, 1873, nom. illeg. - bug
ICZN:Acanthochirus (Genus) Peters, 1861 see (Genus) Cercophonius Peters, 1861 - arachnid ICZN:Acanthochirus (Genus) Oppel, 1862, nom. illeg. see (Genus) †Acanthochirana Strand, 1928 - crustacean
ICZN:Acanthochitus (Genus) Philippi, 1844 - mollusc ICZN:Acanthochitus (Genus) Herrmannsen, 1846, nom. illeg. see (Genus) Acanthochites Risso, 1826 - mollusc
ICZN:Acanthochrysis (Genus) Conrad, 1932 - protozoan ICZN:Acanthochrysis (Genus) Haupt, 1956, nom. illeg. - insect
ICBN:Acanthocladium (Genus) F.Muell. (1861) - plant ICBN:Acanthocladium (Genus) Mitt. (1878), nom. illeg. - plant
ICZN:Acanthocnemis (Genus) Hawle & Corda, 1847 - arthropod ICZN:Acanthocnemis (Genus) Blanchard, 1852, nom. illeg. - fly
ICZN:Acanthocnemis (Genus) Hawle & Corda, 1847 - arthropod ICZN:Acanthocnemis (Genus) Signoret, 1865, nom. illeg. - bug
ICZN:Acanthocnemis (Genus) Blanchard, 1852, nom. illeg. - fly ICZN:Acanthocnemis (Genus) Signoret, 1865, nom. illeg. - bug
ICZN:Acanthocyathus (Genus) Milne-Edwards & Haime, 1848 - invertebrate ICZN:Acanthocyathus (Genus) Bedford, 1934, nom. illeg. - sponge
ICZN:Acanthodera (Genus) Agassiz, 1846 - beetle ICZN:Acanthodera (Genus) Westwood, 1847, nom. illeg. see (Genus) Acanthoderus Gray, 1835 - insect
ICZN:Acanthodesma (Genus) Zittel, 1876 - protozoan ICZN:Acanthodesma (Genus) Uhler, 1896, nom. illeg. - bug
ICZN:Acanthodiscus (Genus) Uhlig, 1905 - mollusc ICZN:Acanthodiscus (Genus) MacCallum, 1918, nom. illeg. - flatworm
ICZN:Acanthodiscus (Genus) Uhlig, 1905 - mollusc ICZN:Acanthodiscus (Genus) Volkmer-Ribeiro, 1996, nom. illeg. see (Genus) Racekiela Bass & Volkmer-Ribeiro, 1998 - sponge
ICZN:Acanthodiscus (Genus) MacCallum, 1918, nom. illeg. - flatworm ICZN:Acanthodiscus (Genus) Volkmer-Ribeiro, 1996, nom. illeg. see (Genus) Racekiela Bass & Volkmer-Ribeiro, 1998 - sponge
ICZN:Acanthodon (Genus) Guérin-Ménéville, 1838 - arachnid ICZN:Acanthodon (Genus) von Meyer, 1843, nom. illeg. - mammal
ICZN:Acanthodon (Genus) Guérin-Ménéville, 1838 - arachnid ICZN:Acanthodon (Genus) Weise, 1880, nom. illeg. see (Genus) Machomena Dubois, 1887 - beetle
ICZN:Acanthodon (Genus) von Meyer, 1843, nom. illeg. - mammal ICZN:Acanthodon (Genus) Weise, 1880, nom. illeg. see (Genus) Machomena Dubois, 1887 - beetle
ICBN:Acanthogonyaulax (Genus) (Kof.) H. Graham (1942) see (Genus) Gonyaulax Diesing (1866) - protist ICBN:Acanthogonyaulax (Genus) Sarjeant (1966) - protist
ICZN:Acantholithus (Genus) Stimpson, 1858 see (Genus) Paralomis White, 1856 - crustacean ICZN:Acantholithus (Genus) Lindström, 1899, nom. illeg. see (Genus) Acidolites Lang, Smith & Thomas, 1940 - invertebrate
ICZN:Acantholonche (Genus) Haeckel, 1881 - protozoan ICZN:Acantholonche (Genus) Popofsky, 1904, nom. illeg. - protozoan
ICZN:Acantholophus (Genus) Guérin-Ménéville, 1838 - beetle ICZN:Acantholophus (Genus) Koch, 1839, nom. illeg. - arachnid
ICZN:Acanthomerus (Genus) Guérin, 1834 - beetle ICZN:Acanthomerus (Genus) Schönherr, 1843, nom. illeg. see (Genus) Carteromerus Lacordaire, 1863 - beetle
ICZN:Acanthomys (Genus) Lesson, 1842 - mammal ICZN:Acanthomys (Genus) Gray, 1843, nom. illeg. - mammal
ICZN:Acanthomys (Genus) Lesson, 1842 - mammal ICZN:Acanthomys (Genus) Gray, 1867, nom. illeg. - mammal
ICZN:Acanthomys (Genus) Gray, 1843, nom. illeg. - mammal ICZN:Acanthomys (Genus) Gray, 1867, nom. illeg. - mammal
ICZN:Acanthomys (Genus) Gray, 1867, nom. illeg. - mammal ICZN:Acanthomys (Genus) Tokuda, 1941, nom. illeg. see (Genus) Tokudamys Johnson, 1946 - mammal
ICZN:Acanthomys (Genus) Lesson, 1842 - mammal ICZN:Acanthomys (Genus) Tokuda, 1941, nom. illeg. see (Genus) Tokudamys Johnson, 1946 - mammal
ICZN:Acanthomys (Genus) Gray, 1843, nom. illeg. - mammal ICZN:Acanthomys (Genus) Tokuda, 1941, nom. illeg. see (Genus) Tokudamys Johnson, 1946 - mammal
ICZN:Acanthonia (Genus) Haeckel, 1881 - protozoan ICZN:Acanthonia (Genus) Popofsky, 1904, nom. illeg. - protozoan
ICZN:Acanthonia (Genus) Haeckel, 1881 - protozoan ICZN:Acanthonia (Genus) Wasmann, 1918, nom. illeg. see (Genus) Gapia Blackwelder, 1952 - beetle
ICZN:Acanthonia (Genus) Popofsky, 1904, nom. illeg. - protozoan ICZN:Acanthonia (Genus) Wasmann, 1918, nom. illeg. see (Genus) Gapia Blackwelder, 1952 - beetle
ICZN:Acanthonotus (Genus) Goldfuss, 1809 see (Genus) Tachyglossus Illiger, 1811 - mammal ICZN:Acanthonotus (Genus) Nalepa, 1889, nom. illeg. see (Genus) Tegonotus Nalepa, 1890 - mite
ICZN:Acanthonotus (Genus) Goldfuss, 1809 see (Genus) Tachyglossus Illiger, 1811 - mammal ICZN:Acanthonotus (Genus) Ross, 1835, nom. illeg. see (Genus) Acanthonotozoma Boeck, 1876 - crustacean
ICZN:Acanthonotus (Genus) Ross, 1835, nom. illeg. see (Genus) Acanthonotozoma Boeck, 1876 - crustacean ICZN:Acanthonotus (Genus) Nalepa, 1889, nom. illeg. see (Genus) Tegonotus Nalepa, 1890 - mite
ICZN:Acanthopalpus (Genus) Ausserer, 1871 - arachnid ICZN:Acanthopalpus (Genus) Makarova, 1978, nom. illeg. - mite
ICZN:Acanthophallus (Genus) Lühe, 1903, nom. illeg. - flatworm ICZN:Acanthophallus (Genus) Coiffait, 1956, nom. illeg. see (Genus) Acanthophus Coiffait, 1983 - beetle
ICZN:Acanthophallus (Genus) Cope, 1893 - reptile ICZN:Acanthophallus (Genus) Coiffait, 1956, nom. illeg. see (Genus) Acanthophus Coiffait, 1983 - beetle
ICZN:Acanthophallus (Genus) Cope, 1893 - reptile ICZN:Acanthophallus (Genus) Lühe, 1903, nom. illeg. - flatworm
ICZN:Acanthophila (Genus) Heinemann, 1870 - moth ICZN:Acanthophila (Genus) Duda, 1924, nom. illeg. - fly
ICZN:Acanthophlebia (Genus) Towns, 1983 - insect ICZN:Acanthophlebia (Genus) Clarke, 1986, nom. illeg. - moth
ICZN:Acanthophrys (Genus) Milne-Edwards, 1865 - crustacean ICZN:Acanthophrys (Genus) Loman, 1902, nom. illeg. see (Genus) Acanthophrysella Strand, 1911 - arachnid
ICZN:Acanthoplites (Genus) Sinzow, 1907 - mollusc ICZN:Acanthoplites (Genus) Douvillé, 1912, nom. illeg. - mollusc
ICZN:Acanthopsilus (Genus) Kieffer, 1908 - insect ICZN:Acanthopsilus (Genus) Portevin, 1914, nom. illeg. - beetle
ICZN:Acanthopterus (Genus) Gray, 1832 - beetle ICZN:Acanthopterus (Genus) Faust, 1889, nom. illeg. - beetle
ICZN:Acanthopygus (Genus) Montrouzier, 1861 - beetle ICZN:Acanthopygus (Genus) Deyrolle, 1864, nom. illeg. see (Genus) Geralius Harold, 1869 - beetle
ICZN:Acanthopyrgus (Genus) Descamps & Wintrebert, 1966 - insect ICZN:Acanthopyrgus (Genus) Handfield, 1967, nom. illeg. see (Genus) †Yukonensis Özdikmen, 2009 - sponge
ICZN:Acanthorhinus (Genus) de Blainville, 1816 - fish ICZN:Acanthorhinus (Genus) Agassiz, 1846, nom. illeg. - beetle
ICZN:Acanthosoma (Genus) Curtis, 1824 - bug ICZN:Acanthosoma (Genus) Claus, 1863, nom. illeg. - crustacean
ICZN:Acanthosphaera (Genus) Ehrenberg, 1858 - protist ICZN:Acanthosphaera (Genus) Duan, 1984, nom. illeg. - invertebrate
ICBN:Acanthostigmella (Genus) Höhn. (1905) - fungus ICBN:Acanthostigmella (Genus) Rick (1933), nom. illeg. - fungus
ICZN:Acanthostoma (Genus) Fischer[-Waldheim], 1813 - annelid ICZN:Acanthostoma (Genus) Credner, 1883, nom. illeg. - amphibian
ICZN:Acanthostoma (Genus) Fischer[-Waldheim], 1813 - annelid ICZN:Acanthostoma (Genus) Kriechbaumer, 1894, nom. illeg. - insect
ICZN:Acanthostoma (Genus) Credner, 1883, nom. illeg. - amphibian ICZN:Acanthostoma (Genus) Kriechbaumer, 1894, nom. illeg. - insect
ICBN:Acanthothecium (Genus) Speg. (1889) see (Genus) Ypsilonia Lév. (1846) - fungus ICBN:Acanthothecium (Genus) Vain. (1890), nom. illeg. - fungus
ICZN:Acanthothorax (Genus) Gaede, 1832 - beetle ICZN:Acanthothorax (Genus) Bretfeld & Griegel, 1999, nom. illeg. - arthropod
ICZN:Acanthothorax (Genus) Costa, 1839, nom. illeg. see (Genus) Costiella Reuter, 1890 - bug ICZN:Acanthothorax (Genus) Bretfeld & Griegel, 1999, nom. illeg. - arthropod
ICZN:Acanthothorax (Genus) Gaede, 1832 - beetle ICZN:Acanthothorax (Genus) Costa, 1839, nom. illeg. see (Genus) Costiella Reuter, 1890 - bug
ICZN:Acanthotrema (Genus) Oshmarin & Parakhin, 1960, nom. illeg. - flatworm ICZN:Acanthotrema (Genus) Baker & Rowe, 1990, nom. illeg. - echinoderm
ICZN:Acanthotrema (Genus) Travassos, 1928 - flatworm ICZN:Acanthotrema (Genus) Baker & Rowe, 1990, nom. illeg. - echinoderm
ICZN:Acanthotrema (Genus) Travassos, 1928 - flatworm ICZN:Acanthotrema (Genus) Oshmarin & Parakhin, 1960, nom. illeg. - flatworm
ICZN:Acardo (Genus) Bruguière, 1789 see (Genus) Arcado Bruguière, 1789 - mollusc ICZN:Acardo (Genus) Lamarck, 1799, nom. illeg. - mollusc
ICZN:Acardo (Genus) Bruguière, 1789 see (Genus) Arcado Bruguière, 1789 - mollusc ICZN:Acardo (Genus) Swainson, 1840, nom. illeg. - mollusc
ICZN:Acardo (Genus) Lamarck, 1799, nom. illeg. - mollusc ICZN:Acardo (Genus) Swainson, 1840, nom. illeg. - mollusc
ICZN:Acardo (Genus) Lamarck, 1799, nom. illeg. - mollusc ICZN:Acardo (Genus) Herrmannsen, 1846, nom. illeg. - mollusc
ICZN:Acardo (Genus) Swainson, 1840, nom. illeg. - mollusc ICZN:Acardo (Genus) Herrmannsen, 1846, nom. illeg. - mollusc
ICZN:Acardo (Genus) Bruguière, 1789 see (Genus) Arcado Bruguière, 1789 - mollusc ICZN:Acardo (Genus) Herrmannsen, 1846, nom. illeg. - mollusc
ICZN:Acarellus (Genus) Westwood, 1870 - arachnid ICZN:Acarellus (Genus) Tatem, 1872, nom. illeg. - arachnid
ICBN:Acarna (Genus) Boehm. (1760) see (Genus) Atractylis L. (1753) - plant ICBN:Acarna (Genus) J. Hill (1762) see (Genus) Picnomon Adans. (1763) - plant
ICZN:Acaroceras (Genus) Grandjean, 1936 - mite ICZN:Acaroceras (Genus) Chen, Qi & Chen, 1979, nom. illeg. - mollusc
ICZN:Acaroceras (Subgenus) Grandjean, 1936 - mite ICZN:Acaroceras (Genus) Chen, Qi & Chen, 1979, nom. illeg. - mollusc
ICZN:Acaropsis (Genus) Moquin-Tandon, 1863 - mite ICZN:Acaropsis (Genus) Steindachner, 1875, nom. illeg. see (Genus) Acaronia Myers, 1940 - fish
ICZN:Acathartus (Genus) Fåhraeus, 1872 - beetle ICZN:Acathartus (Genus) Grouvelle, 1913, nom. illeg. - beetle
ICZN:Acca (Genus) Hübner, 1819 - butterfly ICZN:Acca (Genus) Johnson, 1899, nom. illeg. see (Genus) Aka de Laubenfels, 1936, nom. illeg. - sponge
ICZN:Accola (Genus) Simon, 1889 - arachnid ICZN:Accola (Genus) Jordan, 1894, nom. illeg. see (Genus) Accolona Strand, 1942 - beetle
ICZN:Acelis (Genus) Diesing, 1862 - flatworm ICZN:Acelis (Genus) Plehn, 1896, nom. illeg. - flatworm
ICZN:Acentetus (Genus) Cabanis & Heine, 1862-1863[1863] - bird ICZN:Acentetus (Genus) Scudder, 1897, nom. illeg. see (Genus) Akentetus McNeill, 1897 - insect
ICZN:Acera (Genus) Cuvier, 1810, nom. illeg. see (Genus) Akera Müller, 1776 - mollusc ICZN:Acera (Genus) Lamarck, 1812, nom. illeg. see (Genus) Akera Müller, 1776 - mollusc
ICZN:Acera (Genus) Cuvier, 1810, nom. illeg. see (Genus) Akera Müller, 1776 - mollusc ICZN:Acera (Genus) Albers, 1850, nom. illeg. see (Genus) Holospira Martens, 1860 - mollusc
ICZN:Acera (Genus) Lamarck, 1812, nom. illeg. see (Genus) Akera Müller, 1776 - mollusc ICZN:Acera (Genus) Albers, 1850, nom. illeg. see (Genus) Holospira Martens, 1860 - mollusc
ICZN:Aceratosmia (Genus) Schmiedeknecht, [1885] - insect ICZN:Aceratosmia (Genus) Tkalcu, 1969, nom. illeg. - insect
ICZN:Acerella (Genus) (Berlese, 1909) Rusek, 1974 - arthropod ICZN:Acerella (Genus) Allen, 1971, nom. illeg. see (Genus) Ephacerella Paclt, 1994 - insect
ICZN:Aceros (Genus) Hodgson, 1844 - bird ICZN:Aceros (Genus) Boeck, 1861, nom. illeg. see (Genus) Arrhis Stebbing, 1906 - crustacean
ICZN:Acerus (Genus) Agassiz, 1846 - bird ICZN:Acerus (Genus) Michael, 1884, nom. illeg. - arachnid
ICZN:Acerus (Genus) Burmeister, 1847, nom. illeg. - beetle ICZN:Acerus (Genus) Michael, 1884, nom. illeg. - arachnid
ICZN:Acerus (Genus) Agassiz, 1846 - bird ICZN:Acerus (Genus) Burmeister, 1847, nom. illeg. - beetle
ICZN:Acervularia (Genus) Schweigger, 1819 - invertebrate ICZN:Acervularia (Genus) Lonsdale, 1839, nom. illeg. - invertebrate
ICZN:Acestus (Genus) Leidy, 1852 - annelid ICZN:Acestus (Genus) Haag-Rutenberg, 1875, nom. illeg. see (Genus) Acestophanus Koch, 1950 - beetle
ICBN:Acetabularia (Genus) J.V. Lamour. (1812) - alga ICBN:Acetabularia (Genus) (Berk.) Massee (1893), nom. illeg. see (Genus) Cyphellopus Fayod (1889), nom. dub. - fungus
ICZN:Achaetothrips (Genus) Karny, 1908 - insect ICZN:Achaetothrips (Genus) Shumsher Singh, 1946, nom. illeg. - insect
ICZN:Acheles (Genus) Cocco, 1832 see (Genus) Sergestes Milne-Edwards, 1830 - crustacean ICZN:Acheles (Genus) Oudemans, 1903, nom. illeg. see (Genus) Raphignathus Dugès, 1834 - mite
ICBN:Achyronia (Genus) A. van Royen ex L. (1758) - plant ICBN:Achyronia (Genus) J.C. Wendland (1798), nom. illeg. - plant
ICBN:Acia (Genus) Schreb. (1791) see (Genus) Acioa Aubl. (1775) - plant ICBN:Acia (Genus) P.Karst. (1879), nom. illeg. see (Genus) Mycoacia Donk (1931) - fungus
ICZN:Aciculina (Genus) Adams, 1853 - mollusc ICZN:Aciculina (Genus) Deshayes, 1862 - mollusc
ICZN:Aciculina (Genus) Adams, 1853 - mollusc ICZN:Aciculina (Genus) Meek, 1871 see (Genus) †Streptacis Meek, 1871 - mollusc
ICZN:Aciculina (Genus) Deshayes, 1862 - mollusc ICZN:Aciculina (Genus) Meek, 1871 see (Genus) †Streptacis Meek, 1871 - mollusc
ICZN:Aciculina (Genus) Deshayes, 1862 - mollusc ICZN:Aciculina (Genus) Westerlund, 1887 - mollusc
ICZN:Aciculina (Genus) Adams, 1853 - mollusc ICZN:Aciculina (Genus) Westerlund, 1887 - mollusc
ICZN:Aciculina (Genus) Meek, 1871 see (Genus) †Streptacis Meek, 1871 - mollusc ICZN:Aciculina (Genus) Westerlund, 1887 - mollusc
ICZN:Aciculina (Genus) Deshayes, 1862 - mollusc ICZN:Aciculina (Genus) Vyalov, 1966, nom. illeg. see (Genus) †Aciculella Vyalov, 1968 - protist
ICZN:Aciculina (Genus) Meek, 1871 see (Genus) †Streptacis Meek, 1871 - mollusc ICZN:Aciculina (Genus) Vyalov, 1966, nom. illeg. see (Genus) †Aciculella Vyalov, 1968 - protist
ICZN:Aciculina (Genus) Adams, 1853 - mollusc ICZN:Aciculina (Genus) Vyalov, 1966, nom. illeg. see (Genus) †Aciculella Vyalov, 1968 - protist
ICZN:Aciculina (Genus) Westerlund, 1887 - mollusc ICZN:Aciculina (Genus) Vyalov, 1966, nom. illeg. see (Genus) †Aciculella Vyalov, 1968 - protist
ICBN:Aciella (Genus) Tiegh. (1894) - plant ICBN:Aciella (Genus) (P.Karst.) P.Karst. (1899), nom. illeg. see (Genus) Asterodon Pat. (1894) - fungus
ICZN:Aclytia (Genus) Hübner, 1819 - moth ICZN:Aclytia (Genus) Broun, 1880, nom. illeg. see (Genus) Asilis Broun, 1893 - beetle
ICZN:Acmophyllum (Genus) Karsch, 1890 - insect ICZN:Acmophyllum (Genus) Syrova, 1968, nom. illeg. - invertebrate
ICZN:Acrilla (Genus) Adams, 1860 - mollusc ICZN:Acrilla (Genus) Stål, 1863, nom. illeg. see (Genus) Thaumastopsaltria Kirkaldy, 1900 - bug
ICZN:Acrilla (Subgenus) Adams, 1860 - mollusc ICZN:Acrilla (Genus) Stål, 1863, nom. illeg. see (Genus) Thaumastopsaltria Kirkaldy, 1900 - bug
ICZN:Acrobothrium (Genus) Olsson, 1872 see (Genus) Cyathocephalus Kessler, 1868 - flatworm ICZN:Acrobothrium (Genus) Baer, 1948, nom. illeg. see (Genus) Acanthobothrium Blanchard, 1848 - flatworm
ICZN:Acrobotrissa (Genus) Haeckel, 1887 - protist ICZN:Acrobotrissa (Genus) Popofsky, 1913, nom. illeg. - protist
ICBN:Acrocarpus (Genus) Wight ex Arn. (1838) - plant ICBN:Acrocarpus (Genus) Kützing (1843), nom. illeg. - alga
ICBN:Acrocladium (Genus) Mitt. (1869) - plant ICBN:Acrocladium (Genus) Petr. (1949), nom. illeg. see (Genus) Periconiella Sacc. (1885) - fungus
ICZN:Acrolophus (Genus) Poey, 1832 - moth ICZN:Acrolophus (Genus) Ramme, 1941, nom. illeg. - insect
ICBN:Acronema (Genus) Falc. ex Edgew. (1846) - plant ICBN:Acronema (Genus) Teal, Guillemette, Chapman & Margulis (1998) see (Genus) Cafeteria Fenchel & Patterson (1988) - protist
ICZN:Acroria (Genus) Walker, 1858 - moth ICZN:Acroria (Genus) Cossmann, 1889, nom. illeg. see (Genus) †Acroreia Cossmann, 1885 - mollusc
ICZN:Acroriodes (Genus) Druce, 1908 - moth ICZN:Acroriodes (Genus) Hampson, 1908, nom. illeg. see (Genus) Acroriodes Druce, 1908 - moth
ICBN:Acroscyphus (Genus) Lév. (1846) - fungus ICBN:Acroscyphus (Genus) N.Kitag. (1984) see (Genus) Acroscyphella N.Kitag. & Grolle (1985) - plant
ICBN:Acrospira (Genus) Mont. (1857) - fungus ICBN:Acrospira (Genus) Welwitsch ex Baker (1878) see (Genus) Debesia Kuntze (1891) - plant
ICZN:Actea (Genus) Germar, 1842 - mammal ICZN:Actea (Genus) Walker, 1854, nom. illeg. - moth
ICBN:Actinella (Genus) Juss. ex Nutt. (1818), nom. illeg. - plant ICBN:Actinella (Genus) F.W. Lewis (1864), nom. cons. - alga
ICZN:Actinodontidae (Family) Lydekker, 1885 - amphibian ICZN:Actinodontidae (Family) Davies, 1933, nom. illeg. - mollusc
ICZN:Actinospongia (Genus) d'Orbigny, 1849 - sponge ICZN:Actinospongia (Genus) Mostler, 1986, nom. illeg. see (Genus) †Actinospongiella Reid, 2004 - sponge
ICZN:Acuaria (Genus) Bremser, 1811 - nematode ICZN:Acuaria (Genus) Quenstedt, 1856, nom. illeg. see (Genus) †Acuarites Schindewolf, 1963 - mollusc
ICZN:Acuaria (Genus) Bremser, 1811 - nematode ICZN:Acuaria (Genus) Zakrzewski, 1886, nom. illeg. - mollusc
ICZN:Acuaria (Genus) Quenstedt, 1856, nom. illeg. see (Genus) †Acuarites Schindewolf, 1963 - mollusc ICZN:Acuaria (Genus) Zakrzewski, 1886, nom. illeg. - mollusc
ICZN:Acus (Subgenus) Swainson, 1839 see (Genus) Entelurus Duméril, 1870 - fish ICZN:Acus (Genus) Gray, 1847, nom. illeg. see (Genus) Oxymeris Dall, 1903 - mollusc
ICZN:Adamas (Genus) Malaise, 1945 - insect ICZN:Adamas (Genus) Afanasieva, 2000, nom. illeg. see (Genus) †Adamasirad Afanasieva, 2009 - protist
ICZN:Adamas (Genus) Huber, 1979, nom. illeg. see (Genus) Fenerbahce Özdikmen et al., 2006 - fish ICZN:Adamas (Genus) Afanasieva, 2000, nom. illeg. see (Genus) †Adamasirad Afanasieva, 2009 - protist
ICBN:Adelanthus (Genus) Endl. (1840), nom. rej. - plant ICBN:Adelanthus (Genus) Mitt. (1864), nom. cons. - plant
ICZN:Adelomorpha (Genus) Snellen, 1885 - moth ICZN:Adelomorpha (Genus) Tapparone-Canefri, 1886, nom. illeg. - mollusc
ICZN:Adelungia (Genus) Melichar, 1902 - bug ICZN:Adelungia (Genus) Suleymanov, 1966, nom. illeg. - protist
ICZN:Adelungia (Genus) Klapálek, 1914, nom. illeg. see (Genus) Claassenia Wu, 1934 - insect ICZN:Adelungia (Genus) Suleymanov, 1966, nom. illeg. - protist
ICZN:Adelungia (Genus) Melichar, 1902 - bug ICZN:Adelungia (Genus) Klapálek, 1914, nom. illeg. see (Genus) Claassenia Wu, 1934 - insect
ICZN:Adinopsis (Genus) Cameron, 1918 - beetle ICZN:Adinopsis (Genus) Odhner, 1923, nom. illeg. see (Genus) Adinassa Horro, Schönherr & Rolán, 2018 - mollusc
ICZN:Admiranda (Genus) Marfenkova, 1991 - protist ICZN:Admiranda (Genus) Ariunchimeg, 1996, nom. illeg. see (Genus) †Admirandopora Ariunchimeg, 2012 - invertebrate
ICZN:Adra (Genus) Walker, 1863 - moth ICZN:Adra (Genus) Schouteden, 1951, nom. illeg. - bug
ICZN:Advena (Genus) Gude, 1913 - mollusc ICZN:Advena (Genus) Kabata, 1979, nom. illeg. see (Genus) Kabatazus Özdikmen, 2008 - crustacean
ICZN:Aedia (Genus) Hübner, 1823 - moth ICZN:Aedia (Genus) Duponchel, 1836, nom. illeg. - moth
ICZN:Aedilis (Genus) Audinet-Serville, 1835 - beetle ICZN:Aedilis (Genus) Gistl, 1848, nom. illeg. see (Genus) Adela Latreille, 1796 - moth
ICZN:Aegina (Genus) Eschscholtz, 1829 - invertebrate ICZN:Aegina (Genus) Krøyer, 1843, nom. illeg. see (Genus) Aeginina Norman, 1905 - crustacean
ICZN:Aenigma (Genus) Newman, 1836 - beetle ICZN:Aenigma (Genus) Koch, 1846, nom. illeg. - mollusc
ICZN:Aenigma (Genus) Newman, 1836 - beetle ICZN:Aenigma (Genus) Strecker, 1876, nom. illeg. - moth
ICZN:Aenigma (Genus) Koch, 1846, nom. illeg. - mollusc ICZN:Aenigma (Genus) Strecker, 1876, nom. illeg. - moth
ICZN:Aenigma (Genus) Koch, 1846, nom. illeg. - mollusc ICZN:Aenigma (Genus) Karsch, 1878, nom. illeg. - arachnid
ICZN:Aenigma (Genus) Newman, 1836 - beetle ICZN:Aenigma (Genus) Karsch, 1878, nom. illeg. - arachnid
ICZN:Aenigma (Genus) Strecker, 1876, nom. illeg. - moth ICZN:Aenigma (Genus) Karsch, 1878, nom. illeg. - arachnid
ICZN:Aenigma (Genus) Omelko, 1988, nom. illeg. - moth ICZN:Aenigma (Genus) Wesolowska & Haddad, 2009, nom. illeg. see (Genus) Zulunigma Wesolowska & Cumming, 2011 - arachnid
ICZN:Aenigma (Genus) Amsel, 1956, nom. illeg. see (Genus) Aenigmodes Amsel, 1957 - moth ICZN:Aenigma (Genus) Wesolowska & Haddad, 2009, nom. illeg. see (Genus) Zulunigma Wesolowska & Cumming, 2011 - arachnid
ICZN:Aenigma (Genus) Newman, 1836 - beetle ICZN:Aenigma (Genus) Wesolowska & Haddad, 2009, nom. illeg. see (Genus) Zulunigma Wesolowska & Cumming, 2011 - arachnid
ICZN:Aenigma (Genus) Koch, 1846, nom. illeg. - mollusc ICZN:Aenigma (Genus) Wesolowska & Haddad, 2009, nom. illeg. see (Genus) Zulunigma Wesolowska & Cumming, 2011 - arachnid
ICZN:Aenigma (Genus) Strecker, 1876, nom. illeg. - moth ICZN:Aenigma (Genus) Wesolowska & Haddad, 2009, nom. illeg. see (Genus) Zulunigma Wesolowska & Cumming, 2011 - arachnid
ICZN:Aenigma (Genus) Karsch, 1878, nom. illeg. - arachnid ICZN:Aenigma (Genus) Wesolowska & Haddad, 2009, nom. illeg. see (Genus) Zulunigma Wesolowska & Cumming, 2011 - arachnid
ICZN:Aenigma (Genus) Amsel, 1956, nom. illeg. see (Genus) Aenigmodes Amsel, 1957 - moth ICZN:Aenigma (Genus) Omelko, 1988, nom. illeg. - moth
ICZN:Aenigma (Genus) Koch, 1846, nom. illeg. - mollusc ICZN:Aenigma (Genus) Omelko, 1988, nom. illeg. - moth
ICZN:Aenigma (Genus) Newman, 1836 - beetle ICZN:Aenigma (Genus) Omelko, 1988, nom. illeg. - moth
ICZN:Aenigma (Genus) Strecker, 1876, nom. illeg. - moth ICZN:Aenigma (Genus) Omelko, 1988, nom. illeg. - moth
ICZN:Aenigma (Genus) Karsch, 1878, nom. illeg. - arachnid ICZN:Aenigma (Genus) Omelko, 1988, nom. illeg. - moth
ICZN:Aenigma (Genus) Newman, 1836 - beetle ICZN:Aenigma (Genus) Amsel, 1956, nom. illeg. see (Genus) Aenigmodes Amsel, 1957 - moth
ICZN:Aenigma (Genus) Koch, 1846, nom. illeg. - mollusc ICZN:Aenigma (Genus) Amsel, 1956, nom. illeg. see (Genus) Aenigmodes Amsel, 1957 - moth
ICZN:Aenigma (Genus) Strecker, 1876, nom. illeg. - moth ICZN:Aenigma (Genus) Amsel, 1956, nom. illeg. see (Genus) Aenigmodes Amsel, 1957 - moth
ICZN:Aenigma (Genus) Karsch, 1878, nom. illeg. - arachnid ICZN:Aenigma (Genus) Amsel, 1956, nom. illeg. see (Genus) Aenigmodes Amsel, 1957 - moth
ICZN:Aerope (Genus) White, 1847 - mollusc ICZN:Aerope (Genus) Martens, 1860, nom. illeg. see (Genus) Natalina Pilsbry, 1893 - mollusc
ICZN:Aethia (Genus) Merrem, 1788 - bird ICZN:Aethia (Genus) Qian & Zhou, 1984, nom. illeg. - arthropod
ICZN:Aethotaxis (Genus) De Witt, 1962 - fish ICZN:Aethotaxis (Genus) Baesemann, 1973, nom. illeg. see (Genus) †Ubinates Baesemann & Purnell, 2000 - fish
ICZN:Aethria (Genus) Hübner, [1819] - moth ICZN:Aethria (Genus) Hübner, [1821], nom. illeg. - moth
ICZN:Aethria (Genus) Hübner, [1819] - moth ICZN:Aethria (Genus) Tosquinet, 1903, nom. illeg. see (Genus) Aethriella Schulz, 1911 - insect
ICZN:Aethria (Genus) Hübner, [1821], nom. illeg. - moth ICZN:Aethria (Genus) Tosquinet, 1903, nom. illeg. see (Genus) Aethriella Schulz, 1911 - insect
ICZN:Aetia (Genus) Agassiz, 1846 - invertebrate ICZN:Aetia (Genus) Chambers, 1880, nom. illeg. see (Genus) Chaetocampa Bottimer, 1926 - moth
ICZN:Africacarus (Genus) Viets, 1962 - mite ICZN:Africacarus (Genus) Wallwork, 1965, nom. illeg. see (Genus) Farchacarus Wallwork, 1967 - mite
ICZN:Africasia (Genus) Viets, 1931 - mite ICZN:Africasia (Genus) Rohdendorf, 1934, nom. illeg. see (Genus) Africasiomyia Rohdendorf, 1975 - fly
ICBN:Agaricomycotina (Subphylum) Doweld (2001) - fungus ICBN:Agaricomycotina (Subphylum) R. Bauer, Begerow, J.P. Samp., M. Weiß & Oberw. (2006), nom. inval. see (Class) Basidiomycetes G.Winter (1880) - fungus
ICBN:Agaricus flavovirens Pers. (1793) see Tricholoma equestre (L.) P. Kumm. (1871) - fungus ICBN:Agaricus flavovirens Alb. & Schwein. (1805), nom. illeg. - fungus
ICBN:Agaricus flavovirens Pers. (1793) see Tricholoma equestre (L.) P. Kumm. (1871) - fungus ICBN:Agaricus flavovirens Cooke & Massee (1890), nom. illeg. see Insiticia flavovirens (Sacc.) E.Horak ex Segedin (1987) - fungus
ICBN:Agaricus squarrosus Vahl (1770) see Pholiota squarrosa (Vahl) P. Kumm. (1871) - fungus ICBN:Agaricus squarrosus Bull. (1780), nom. illeg. see Pholiota squarrosa (Vahl) P. Kumm. (1871) - fungus
ICBN:Agaricus squarrosus Vahl (1770) see Pholiota squarrosa (Vahl) P. Kumm. (1871) - fungus ICBN:Agaricus squarrosus Batsch (1786), nom. illeg. - fungus
ICBN:Agaricus squarrosus Vahl (1770) see Pholiota squarrosa (Vahl) P. Kumm. (1871) - fungus ICBN:Agaricus squarrosus Yu Li (1990), nom. illeg. - fungus
ICZN:Agassizia (Genus) Valenciennes, 1846 - echinoderm ICZN:Agassizia (Genus) Behr, 1870, nom. illeg. - moth
ICZN:Agathamminoides (Genus) Vangerow, 1964 - protist ICZN:Agathamminoides (Genus) Zaninetti, 1969, nom. illeg. see (Genus) †Gsollbergella Zaninetti, 1979 - protist
ICBN:Agathoxylon (Genus) Hartig (1848) - plant ICBN:Agathoxylon (Genus) Greguss (1952), nom. illeg. see (Genus) †Simplicioxylon G. Andreánszky (1949) - plant
ICZN:Agnesia (Genus) de Koninck, 1883 - mollusc ICZN:Agnesia (Genus) Michaelsen, 1898, nom. illeg. see (Genus) Agnezia Monniot & Monniot, 1991 - invertebrate
ICBN:Ahnfeltia (Genus) E.M. Fr. (1835) - alga ICBN:Ahnfeldtia (Genus) Trevis. (1849), nom. illeg. - alga
ICBN:Aiora (Genus) Cookson & Eisenack (1960) - protist ICBN:Aiora (Genus) Davey (1978) - protist
ICBN:Akanthomyces (Genus) Lebert (1858) - fungus ICBN:Acanthomyces (Genus) Thaxt. (1892), nom. illeg. see (Genus) Rhachomyces Thaxt. (1895) - fungus
ICZN:Alaria (Genus) Schrank, 1788 - flatworm ICZN:Alaria (Genus) Morris & Lycett, 1851, nom. illeg. see (Genus) Pterophorus Piette, 1891, nom. illeg. - mollusc
ICZN:Alaria (Genus) Schrank, 1788 - flatworm ICZN:Alaria (Genus) Duncan, 1841, nom. illeg. - insect
ICZN:Alaria (Genus) Duncan, 1841, nom. illeg. - insect ICZN:Alaria (Genus) Morris & Lycett, 1851, nom. illeg. see (Genus) Pterophorus Piette, 1891, nom. illeg. - mollusc
ICZN:Alastor (Genus) Lepeletier, 1841 - wasp ICZN:Alastor (Genus) Perty, 1852, nom. illeg. - protist
ICZN:Albaniana (Genus) Rainbow & Pulleine, 1918 - arachnid ICZN:Albaniana (Genus) Radoman, 1973, nom. illeg. - mollusc
ICZN:Albula (Genus) Scopoli, 1777, nom. illeg. - fish ICZN:Albula (Genus) Röding, 1798, nom. illeg. - mollusc
ICZN:Aldania (Genus) Moore, 1896 - butterfly ICZN:Aldania (Genus) Vassiljeva, 1985, nom. illeg. - mollusc
ICZN:Aldingeria (Genus) Moy-Thomas, 1942 - fish ICZN:Aldingeria (Genus) Gross, 1942, nom. illeg. see (Genus) †Moythomasia Gross, 1950 - fish
ICZN:Alebion (Genus) Krøyer, 1863 - crustacean ICZN:Alebion (Genus) Gray, 1867, nom. illeg. see (Genus) Iophon Gray, 1867 - sponge
ICZN:Alexandria (Genus) Pfeffer, 1881 - echinoderm ICZN:Alexandria (Genus) Tomlin, 1926, nom. illeg. see (Genus) Alexania Strand, 1928 - mollusc
ICZN:Alexandria (Genus) Tomlin, 1926, nom. illeg. see (Genus) Alexania Strand, 1928 - mollusc ICZN:Alexandria (Genus) Obolkina, 1995, nom. illeg. - protist
ICZN:Alexandria (Genus) Pfeffer, 1881 - echinoderm ICZN:Alexandria (Genus) Obolkina, 1995, nom. illeg. - protist
ICBN:Alga (Genus) Boehm. (1760), nom. rej. see (Genus) Posidonia K.D.Koenig (1805) - plant ICBN:Alga (Genus) Adans. (1763), nom. illeg. see (Genus) Zostera L. (1753) - plant
ICZN:Allata (Genus) Walker, 1862 - moth ICZN:Allata (Genus) Walker, 1863, nom. illeg. - moth
ICZN:Allocosmia (Genus) Cossmann, 1897 - mollusc ICZN:Allocosmia (Genus) Sugi, 1982, nom. illeg. see (Genus) Imosca Sugi, 1984 - moth
ICZN:Allogenes (Genus) Gude, 1911 - mollusc ICZN:Allogenes (Genus) Andrewes, 1931, nom. illeg. see (Genus) Allophanes Andrewes, 1939 - beetle
ICZN:Allogenes (Subgenus) Gude, 1911 - mollusc ICZN:Allogenes (Genus) Andrewes, 1931, nom. illeg. see (Genus) Allophanes Andrewes, 1939 - beetle
ICZN:Allonychus (Genus) Zaitzev, 1905 - beetle ICZN:Allonychus (Genus) Pritchard & Baker, 1955, nom. illeg. - mite
ICZN:Allozercon (Genus) Vitzthum, 1926 - mite ICZN:Allozercon (Genus) Blaszak, 1984, nom. illeg. - mite
ICZN:Allozetes (Genus) Berlese, 1913 - mite ICZN:Allozetes (Genus) Higgins, 1965, nom. illeg. see (Genus) Kalyptrazetes Balogh, 1972 - mite
ICZN:Allozetes (Genus) Berlese, 1913 - mite ICZN:Allozetes (Genus) Feider, Vasiliu & Calugar, 1971, nom. illeg. see (Genus) Feiderzetes Subías, 1977 - mite
ICZN:Allozetes (Genus) Higgins, 1965, nom. illeg. see (Genus) Kalyptrazetes Balogh, 1972 - mite ICZN:Allozetes (Genus) Feider, Vasiliu & Calugar, 1971, nom. illeg. see (Genus) Feiderzetes Subías, 1977 - mite
ICZN:Allurus (Genus) Förster, 1862 - insect ICZN:Allurus (Genus) Eisen, 1873, nom. illeg. see (Genus) Eiseniella Michaelsen, 1900 - annelid
ICZN:Allurus (Genus) Förster, 1862 - insect ICZN:Allurus (Genus) Jordan & Evermann, 1896, nom. illeg. see (Genus) Allinectes Jordan & Evermann, 1898 - fish
ICZN:Allurus (Genus) Eisen, 1873, nom. illeg. see (Genus) Eiseniella Michaelsen, 1900 - annelid ICZN:Allurus (Genus) Jordan & Evermann, 1896, nom. illeg. see (Genus) Allinectes Jordan & Evermann, 1898 - fish
ICBN:Alnites (Genus) Göpp. (1837) - plant ICBN:Alnites (Genus) H. Deane (1902), nom. illeg. - plant
ICBN:Alnites (Genus) W. Hisinger (1837), nom. illeg.? - plant ICBN:Alnites (Genus) H. Deane (1902), nom. illeg. - plant
ICBN:Alnites (Genus) Göpp. (1837) - plant ICBN:Alnites (Genus) W. Hisinger (1837), nom. illeg.? - plant
ICZN:Alocodon (Genus) Thulborn, 1973, nom. dub. - dinosaur ICZN:Alocodon (Genus) Rose, Bown & Simons, 1977, nom. illeg. see (Genus) †Alocodontulum Rose, Bown & Simons, 1978 - mammal
ICZN:Altha (Genus) Walker, 1862 - moth ICZN:Altha (Genus) Neckaja, 1958, nom. illeg. see (Genus) Neckajatia Schallreuter, 1974 - crustacean
ICZN:Aluco (Genus) Link, 1807 - mollusc ICZN:Aluco (Genus) Fleming, 1822, nom. illeg. - bird
ICZN:Aluco (Genus) Link, 1807 - mollusc ICZN:Aluco (Genus) Martens, 1880, nom. illeg. - mollusc
ICZN:Aluco (Genus) Fleming, 1822, nom. illeg. - bird ICZN:Aluco (Genus) Martens, 1880, nom. illeg. - mollusc
ICZN:Aluta (Genus) Matthew, 1896 - arachnid ICZN:Aluta (Genus) Jekelius, 1932, nom. illeg. - mollusc
ICZN:Alvania (Genus) Risso, 1826 - mollusc ICZN:Alvania (Genus) Beddard, 1893, nom. illeg., nom. dub. - annelid
ICZN:Alveolites (Genus) Lamarck, 1801 - invertebrate ICZN:Alveolites (Genus) Defrance, 1816, nom. illeg. see (Genus) †Alveolina d'Orbigny, 1826 - protist
ICZN:Alycus (Genus) Rafinesque, 1815, nom. rej. prop. see (Genus) Lycus Fabricius, 1787 - beetle ICZN:Alycus (Genus) Koch, 1842, nom. cons. prop. - mite
ICZN:Amalthea (Genus) Rafinesque, 1815 - bee ICZN:Amalthea (Genus) Schumacher, 1817, nom. illeg. - mollusc
ICZN:Amaltheidae (Family) Hyatt, 1867 - mollusc ICZN:Amaltheidae (Family) Dall, 1889, nom. illeg. see (Family) Hipponicidae Troschel, 1861 - mollusc
ICZN:Amasis (Genus) Leach, 1817, nom. illeg. - insect ICZN:Amasis (Genus) Chapuis, 1874, nom. illeg. see (Genus) Hylax Lefèvre, 1884, nom. illeg. - beetle
ICZN:Amasis (Genus) Leach, 1817, nom. illeg. - insect ICZN:Amasis (Genus) Nordenskiöld, 1905, nom. illeg. see (Genus) Sigthoria Koenike, 1907 - mite
ICZN:Amasis (Genus) Chapuis, 1874, nom. illeg. see (Genus) Hylax Lefèvre, 1884, nom. illeg. - beetle ICZN:Amasis (Genus) Nordenskiöld, 1905, nom. illeg. see (Genus) Sigthoria Koenike, 1907 - mite
ICZN:Amasis (Genus) Chapuis, 1874, nom. illeg. see (Genus) Hylax Lefèvre, 1884, nom. illeg. - beetle ICZN:Amasis (Genus) Sörensen, 1910, nom. illeg. see (Genus) Amasilla Strand, 1911 - arachnid
ICZN:Amasis (Genus) Nordenskiöld, 1905, nom. illeg. see (Genus) Sigthoria Koenike, 1907 - mite ICZN:Amasis (Genus) Sörensen, 1910, nom. illeg. see (Genus) Amasilla Strand, 1911 - arachnid
ICZN:Amasis (Genus) Leach, 1817, nom. illeg. - insect ICZN:Amasis (Genus) Sörensen, 1910, nom. illeg. see (Genus) Amasilla Strand, 1911 - arachnid
ICZN:Amastus (Genus) Walker, 1855 - moth ICZN:Amastus (Genus) Motschoulsky, 1865, nom. illeg. - beetle
ICBN:Amauroderma (Genus) Murrill (1905) - fungus ICBN:Amauroderma (Genus) (Pat.) Torrend (1920), nom. illeg. - fungus
ICBN:Amblytropis (Genus) (Mitt.) Broth. (1907) - plant ICBN:Amblytropis (Genus) Kitagawa (1936), nom. illeg. see (Genus) Gueldenstaedtia F.E.L. Fisch. (1823) - plant
ICZN:Amblyzancla (Genus) Turner, 1936 - moth ICZN:Amblyzancla (Genus) Turner, 1939, nom. illeg. - moth
ICZN:Amerus (Genus) Berlese, 1883 - mite ICZN:Amerus (Genus) Collinge & Shoebotham, 1909, nom. illeg. - arthropod
ICZN:Amerus (Subgenus) Berlese, 1896 - mite ICZN:Amerus (Genus) Collinge & Shoebotham, 1909, nom. illeg. - arthropod
ICZN:Amesia (Genus) Duncan, 1841 - moth ICZN:Amesia (Genus) Robineau-Desvoidy, 1863, nom. illeg. - fly
ICBN:Amesia (Genus) A.Nelson & J.F.Macbr. (1913) - plant ICBN:Amesia (Genus) X. Wei Wang, Samson & Crous (2016), nom. illeg. - fungus
ICZN:Ammoconia (Genus) Lederer, 1857 - moth ICZN:Ammoconia (Genus) Haeckel, 1889, nom. illeg. - protozoan
ICZN:Ammonia (Genus) Brünnich, 1772 - protist ICZN:Ammonia (Genus) Koch, 1842, nom. illeg. see (Genus) Cyta von Heyden, 1826 - mite
ICZN:Amolops (Genus) Cope, 1865 - amphibian ICZN:Amolops (Genus) Hull, 1916, nom. illeg. see (Subgenus) Insculptoppia Subías, 1980 - mite
ICZN:Amphiblestrum (Genus) Gray, 1848 - invertebrate ICZN:Amphiblestrum (Genus) Schrammen, 1937, nom. illeg. see (Genus) †Xenoschrammenum de Laubenfels, 1955 - sponge
ICZN:Amphibrachium (Genus) Schulze, 1880 see (Genus) Bibrachium Stechow, 1919 - invertebrate ICZN:Amphibrachium (Genus) Haeckel, 1881, nom. illeg. - protist
ICBN:Amphisolenia bidentata Okamura (1907) - protist ICBN:Amphisolenia bidentata Pavillard (1916) see Amphisolenia palmata Stein (1883) - protist
ICBN:Amphisolenia bidentata Schröder (1900) - protist ICBN:Amphisolenia bidentata Pavillard (1916) see Amphisolenia palmata Stein (1883) - protist
ICBN:Amphisolenia bidentata Schröder (1900) - protist ICBN:Amphisolenia bidentata Pavillard (1916) see Amphisolenia palmata Stein (1883) - protist
ICBN:Amphisolenia bidentata Schröder (1900) - protist ICBN:Amphisolenia bidentata Okamura (1907) - protist
ICBN:Amphisolenia bidentata Schröder (1900) - protist ICBN:Amphisolenia bidentata Okamura (1907) - protist
ICBN:Amphisolenia thrinax Schütt (1893) - protist ICBN:Amphisolenia thrinax Zacharias (1906) see Amphisolenia bifurcata Murray & Whitting (1899) - protist
ICZN:Amphistylus (Genus) Haeckel, 1881 - protist ICZN:Amphistylus (Genus) Gahan, 1890, nom. illeg. - beetle
ICBN:Amphora (Genus) Ehrenb. (1840) - alga ICBN:Amphora (Genus) H. Willems (1994) see (Genus) †Coronadinium H. Willems (1998) - protist
ICBN:Amphora (Genus) Ehrenb. (1840) - alga ICBN:Amphora (Genus) H. Willems (1994) see (Genus) †Coronadinium H. Willems (1998) - protist
ICZN:Amphorella (Genus) Lowe, 1852 - mollusc ICZN:Amphorella (Genus) Borza & Samuel, 1977, nom. illeg. see (Genus) †Spiriamphorella Borza & Samuel, 1977 - protist
ICZN:Amphorella (Genus) Léger, 1892, nom. illeg. see (Genus) Amphoroides Labbé, 1899 - protozoan ICZN:Amphorella (Genus) Borza & Samuel, 1977, nom. illeg. see (Genus) †Spiriamphorella Borza & Samuel, 1977 - protist
ICZN:Amphorella (Subgenus) Lowe, 1852 - mollusc ICZN:Amphorella (Genus) Léger, 1892, nom. illeg. see (Genus) Amphoroides Labbé, 1899 - protozoan
ICZN:Amphorella (Genus) Lowe, 1852 - mollusc ICZN:Amphorella (Genus) Léger, 1892, nom. illeg. see (Genus) Amphoroides Labbé, 1899 - protozoan
ICZN:Amphorella (Subgenus) Lowe, 1852 - mollusc ICZN:Amphorella (Genus) Borza & Samuel, 1977, nom. illeg. see (Genus) †Spiriamphorella Borza & Samuel, 1977 - protist
ICZN:Amphorina (Genus) de Quatrefages, 1844 see (Genus) Eubranchus Forbes, 1838 - mollusc ICZN:Amphorina (Genus) d'Orbigny, 1849, nom. illeg. see (Genus) Hyalinonetrion Patterson & Richardson, 1988 - protist
ICBN:Amphorula (Genus) Grove (1922) see (Genus) Chaetoconis Clem. (1909) - fungus ICBN:Amphorula (Genus) Dodekova (1969) - protist
ICZN:Ampullina (Genus) Bowdich, 1822 - mollusc ICZN:Ampullina (Genus) Guppy, 1895, nom. illeg. - mollusc
ICZN:Anachoreta (Genus) Gistl, 1848 - insect ICZN:Anachoreta (Genus) O'Dogherty, 1994, nom. illeg. - protist
ICZN:Anagnia (Genus) Walker, 1854 - moth ICZN:Anagnia (Genus) Stål, 1861, nom. illeg. see (Genus) Kareol Kirkaldy, 1904 - bug
ICZN:Anahuacia (Genus) Hoffmann, 1963 - mite ICZN:Anahuacia (Genus) Grundel, 1972, nom. illeg. - crustacean
ICZN:Anatinella (Genus) Sowerby, 1833 - mollusc ICZN:Anatinella (Genus) Spassky & Spasskaja, 1954, nom. illeg. - flatworm
Zoology:Anaua (Genus) Stål, 1878 - insect ICZN:Anaua (Genus) Forster, 1970, nom. illeg. see (Genus) Uzakia Koçak & Kemal, 2008 - arachnid
ICZN:Anchinia (Genus) Hübner, 1825 - moth ICZN:Anchinia (Genus) Eschscholtz, 1829, nom. illeg. - invertebrate
ICZN:Anchiphyllia (Genus) Butler, 1893 - moth ICZN:Anchiphyllia (Genus) Warren, 1895, nom. illeg. see (Genus) Anchiphyllia Butler, 1893 - moth
ICZN:Ancistrochirus (Genus) Leach, 1820 see (Genus) Onychoteuthis Lichtenstein, 1818 - mollusc ICZN:Ancistrochirus (Genus) Hoyle, 1910, nom. illeg. see (Genus) Ancistrocheirus Gray, 1849 - mollusc
ICZN:Ancylini (Tribe) Rafinesque, 1815 - mollusc ICZN:Ancylini (Tribe) Michener, 1944, nom. illeg. - bee
ICZN:Andania (Genus) Walker, 1860 - moth ICZN:Andania (Genus) Boeck, 1871, nom. illeg. see (Genus) Andaniexis Stebbing, 1906 - crustacean
ICBN:Andreaea (Genus) Hedw. (1801) - plant ICBN:Andreaea (Genus) Palm & Jochems (1923), nom. illeg. see (Genus) Andreaeana Palm & Jochems (1924) - fungus
ICZN:Andresia (Genus) Stephenson, 1921 - invertebrate ICZN:Andresia (Genus) Hinz-Schallreuter, 1993, nom. illeg. see (Genus) †Dietmarandresia Hinz-Schallreuter, 2008 - arthropod
ICZN:Andresia (Genus) Stephenson, 1921 - invertebrate ICZN:Andresia (Genus) Prenant, 1924, nom. illeg. see (Genus) Harmothoe Kinberg, 1855 - annelid
ICZN:Andresia (Genus) Prenant, 1924, nom. illeg. see (Genus) Harmothoe Kinberg, 1855 - annelid ICZN:Andresia (Genus) Hinz-Schallreuter, 1993, nom. illeg. see (Genus) †Dietmarandresia Hinz-Schallreuter, 2008 - arthropod
ICZN:Andrusovia (Genus) Brusina, 1903 - mollusc ICZN:Andrusovia (Genus) Dovgal, 2002, nom. illeg. - protist
ICZN:Anemeca (Genus) Kirby, 1871 - butterfly ICZN:Anemeca (Genus) Shcherbakov, 1995, nom. illeg. - fly
ICZN:Angasia (Genus) Bate, 1864 - crustacean ICZN:Angasia (Genus) Dall, 1882, nom. illeg. see (Genus) Phacellozona Pilsbry, 1894 - mollusc
ICZN:Angela (Genus) Audinet-Serville, 1838 - insect ICZN:Angela (Genus) Lesson, 1843, nom. illeg. see (Genus) Anga Stechow, 1921 - invertebrate
ICZN:Angela (Genus) Audinet-Serville, 1838 - insect ICZN:Angela (Genus) González-Sponga, 1987, nom. illeg. see (Genus) Leptostygnus Mello-Leitão, 1940 - arachnid
ICZN:Angela (Genus) Lesson, 1843, nom. illeg. see (Genus) Anga Stechow, 1921 - invertebrate ICZN:Angela (Genus) González-Sponga, 1987, nom. illeg. see (Genus) Leptostygnus Mello-Leitão, 1940 - arachnid
ICZN:Angelia (Genus) Berlese, 1885 see (Genus) Lohmannia Michael, 1898 - mite ICZN:Angelia (Genus) Lower, 1903, nom. illeg. - moth
ICZN:Angitia (Genus) Holmgren, 1858 - wasp ICZN:Angitia (Genus) Walker, 1858, nom. illeg. see (Genus) Blancharditia Biezanko & Ruffinelli, 1963 - moth
ICZN:Anisocycla (Genus) Monterosato, 1880 - mollusc ICZN:Anisocycla (Genus) Cossmann, 1888, nom. illeg. see (Genus) Belonidium Cossmann, 1892 - mollusc
ICZN:Anisogaster (Genus) Deyrolle, 1862 - beetle ICZN:Anisogaster (Genus) Blakemore, 2000, nom. illeg. - annelid
ICZN:Anisoneura (Genus) Guenée, 1852 - moth ICZN:Anisoneura (Genus) de Selys Longchamps, 1859, nom. illeg. see (Genus) Philoganga Kirby, 1890 - insect
ICZN:Anisoxya (Genus) Mulsant, 1856 - beetle ICZN:Anisoxya (Genus) Topsent, 1898, nom. illeg. see (Genus) Topsentia Berg, 1899 - sponge
ICBN:Anixia (Genus) Fr. (1819), nom. dub. - fungus ICBN:Anixia (Genus) H. Hoffm. (1862) see (Genus) Orbicula Cooke (1871) - fungus
ICZN:Annandalea (Genus) Bolivar, 1905 - insect ICZN:Annandalea (Genus) Topsent, 1928, nom. illeg. see (Genus) Thoosa Hancock, 1849 - sponge
ICBN:Annularia (Genus) Sternb. (1821) - plant ICBN:Annularia (Genus) (Schulzer) Gillet (1876), nom. illeg. see (Genus) Pluteus Fr. (1836) - fungus
ICBN:Anodon (Genus) Rabenh. (1848) - plant ICZN:Anodon (Genus) Fairmaire, 1871, nom. illeg. see (Genus) Paranodon Cockerell, 1905 - beetle
ICZN:Anodontinae (Subfamily) Rafinesque, 1820 see (Tribe) Anodontini Rafinesque, 1820 - mollusc ICZN:Anodontinae (Subfamily) nom. illeg. see (Subfamily) Anodinae Bleeker, 1859, nom. emend. - fish
ICZN:Anomalipes (Genus) Guérin, 1832 - beetle ICZN:Anomalipes (Genus) Yu, Wang, Chen, Sullivan, Wang, Wang & Xu, 2018, nom. illeg. - dinosaur
ICZN:Anomalorbis (Genus) Vine, 1972 - annelid ICZN:Anomalorbis (Genus) Paul, 1991, nom. illeg. see (Genus) †Anomalorbina Paul, 1996 - mollusc
ICZN:Anomis aroa Bethune-Baker, 1906 - moth ICZN:Anomis aroa Bethune-Baker, 1908, nom. illeg. - moth
ICZN:Anomphalus (Genus) Meek & Worthen, 1866 - mollusc ICZN:Anomphalus (Genus) Dybowski & Grochmalicki, 1925, nom. illeg. see (Subgenus) Anomphalodes Tomlin, 1929 - mollusc
ICZN:Anoplonotus (Genus) Smith, 1883 - crustacean ICZN:Anoplonotus (Genus) Trouessart, 1916, nom. illeg. see (Genus) Inermodorsus Gaud & Mouchet, 1959 - mite
ICZN:Anotis (Genus) Rafinesque, 1815 - mammal ICZN:Anotis (Genus) Bavay, 1869, nom. illeg. - reptile
ICZN:Ansorgia (Genus) Warren, 1899 - moth ICZN:Ansorgia (Genus) Boulenger, 1912, nom. illeg. - fish
ICBN:Antennaria (Genus) Gaertn. (1791), nom. cons. - plant ICBN:Antennaria (Genus) Link (1809), nom. sanct., nom. rej. - fungus
ICZN:Antenor (Genus) de Montfort, 1808 see (Genus) Lenticulina Lamarck, 1804 - protist ICZN:Antenor (Genus) Ridgway, 1873, nom. illeg. see (Genus) Parabuteo Ridgway, 1874 - bird
ICZN:Anthodes (Genus) Dognin, 1914 - moth ICZN:Anthodes (Genus) Hampson, 1918, nom. illeg. see (Genus) Anthodes Dognin, 1914 - moth
ICZN:Anthometra (Genus) Boisduval, 1840 - moth ICZN:Anthometra (Genus) Clark, 1915, nom. illeg. - echinoderm
ICBN:Anthomyces (Genus) Dietel (1899) - fungus ICBN:Anthomyces (Genus) Grüss (1918), nom. illeg. - fungus
ICZN:Anthracia (Genus) Hübner, 1823 - moth ICZN:Anthracia (Genus) Meigen, 1838, nom. illeg. - fly
ICZN:Antiopa (Genus) Meigen, 1800 - fly ICZN:Antiopa (Genus) Alder & Hancock, 1848, nom. illeg. see (Genus) Antiopella Hoyle, 1902 - mollusc
ICZN:Antiora (Genus) Walker, 1856 - moth ICZN:Antiora (Genus) Möschler, 1882, nom. illeg. see (Genus) Pseudantiora Kirby, 1892 - moth
ICZN:Antonella (Genus) Cooke & Kondo, 1960 - mollusc ICZN:Antonella (Genus) Astafieva-Urbajtis & Ramovs, 1985, nom. illeg. - mollusc
ICBN:Aphanostelma (Genus) Schlechter (1914-1915) - plant ICBN:Aphanostelma (Genus) Malme (1933) see (Genus) Melinia Decaisne (1844) - plant
ICZN:Aphareus (Genus) Cuvier & Valenciennes, 1830 - fish ICZN:Aphareus (Genus) Paulson, 1875, nom. illeg. see (Genus) Sicyonella Borradaile, 1910 - crustacean
ICZN:Aphrodite (Genus) Leske, 1775 see (Genus) Aphrodita Linnaeus, 1758 - annelid ICZN:Aphrodite (Genus) Lendenfeld, 1886, nom. illeg. see (Genus) Hippospongia Schulze, 1879 - sponge
ICZN:Aplysia (Genus) Linnaeus, 1767 - mollusc ICZN:Aplysia (Genus) Nardo, 1833, nom. illeg. see (Genus) Aplysina Nardo, 1834 - sponge
Zoology:Apoda (Order) Oppel, 1810 see (Order) Gymnophiona Rafinesque, 1814 - amphibian Zoology:Apoda (Order) Darwin, 1854 see (Order) Darwinida Lakshminarayana & Rama Rao, 1977 - arthropod
ICZN:Aporina (Genus) Fuhrmann, 1902 - flatworm ICZN:Aporina (Genus) Gussakovskii, 1937, nom. illeg. - insect
ICZN:Apotetranychus (Genus) Oudemans, 1931 see (Genus) Eotetranychus Oudemans, 1931 - mite ICZN:Apotetranychus (Genus) Zacher, 1933, nom. illeg. - arachnid
ICBN:Appendicospora (Genus) K.D.Hyde (1995) - fungus ICBN:Appendicispora (Genus) Spain, Oehl & Sieverd. (2006), nom. illeg. see (Genus) Ambispora C. Walker, Vestberg & A. Schüßler (2007) - fungus
ICZN:Aptyxis (Genus) Troschel, 1868 - mollusc ICZN:Aptyxis (Genus) Zittel, 1873, nom. illeg. see (Genus) †Aptyxiella Fischer, 1885 - mollusc
ICZN:Aptyxis (Subgenus) Troschel, 1868 - mollusc ICZN:Aptyxis (Genus) Zittel, 1873, nom. illeg. see (Genus) †Aptyxiella Fischer, 1885 - mollusc
ICZN:Aptyxis (Subgenus) Troschel, 1868 - mollusc ICZN:Aptyxis (Genus) Pcelinzev, 1928, nom. illeg. - mollusc
ICZN:Aptyxis (Genus) Troschel, 1868 - mollusc ICZN:Aptyxis (Genus) Pcelinzev, 1928, nom. illeg. - mollusc
ICZN:Aptyxis (Genus) Zittel, 1873, nom. illeg. see (Genus) †Aptyxiella Fischer, 1885 - mollusc ICZN:Aptyxis (Genus) Pcelinzev, 1928, nom. illeg. - mollusc
ICZN:Apyre (Genus) Walker, 1854 - moth ICZN:Apyre (Genus) Simon, 1895, nom. illeg. see (Genus) Apyretina Strand, 1929 - arachnid
ICBN:Arachniopsis (Genus) Spruce (1882) - plant ICBN:Arachniopsis (Genus) Long (1917), nom. illeg. - fungus
ICZN:Araeopaschia (Genus) Hampson, 1906 - moth ICZN:Araeopaschia (Genus) Hampson, 1916, nom. illeg. see (Genus) Geropaschia Hampson, 1917 - moth
ICZN:Aragonella (Genus) Thalmann, 1942 - protist ICZN:Aragonella (Genus) Calvez, 1989, nom. illeg. - protozoan
ICZN:Aragonella (Genus) Thalmann, 1942 - protist ICZN:Aragonella (Genus) Gozalo, 1994, nom. illeg. - crustacean
ICZN:Aragonella (Genus) Calvez, 1989, nom. illeg. - protozoan ICZN:Aragonella (Genus) Gozalo, 1994, nom. illeg. - crustacean
ICBN:Araliopsis (Genus) Engl. (1896), nom. cons. - plant ICBN:Araliopsis (Genus) E.W.Berry (1911), nom. illeg. see (Genus) †Araliopsoides E.W.Berry (1916) - plant
ICZN:Arambourgia (Genus) Whitley, 1935 - fish ICZN:Arambourgia (Genus) Kälin, 1939, nom. illeg. - reptile
ICZN:Aranea (Genus) Linnaeus, 1758 - arachnid ICZN:Aranea (Genus) Perry, 1810, nom. illeg. - mollusc
ICZN:Araucania (Genus) Chamberlin, 1956 - arachnid ICZN:Araucania (Genus) Brundin, 1966, nom. illeg. - fly
ICBN:Araucarites (Genus) Endl. (1837), nom. rej. - plant ICBN:Araucarites (Genus) C.Presl (1838), nom. cons. - plant
ICBN:Arberia (Genus) C.D.White (1908) - plant ICBN:Arberia (Genus) Nieuwl. (1916), nom. illeg. - fungus
ICZN:Arborella (Genus) Osburn, 1914 - invertebrate ICZN:Arborella (Genus) Gatehouse, 1967, nom. illeg. see (Genus) †Rankenella Kruse, 1983 - sponge
ICZN:Archaeaspis (Genus) Repina, 1965 - arthropod ICZN:Archaeaspis (Genus) Ivantsov, 2001, nom. illeg. see (Genus) †Archaeaspinus Ivantsov, 2007 - invertebrate
ICZN:Archaeocenosphaera (Genus) Pessagno & Yang, 1989 - protist ICZN:Archaeocenosphaera (Genus) Obut & Iwata, 2000, nom. illeg. - protist
ICZN:Archaeoryctes (Genus) Czerniavsky, 1880 - annelid ICZN:Archaeoryctes (Genus) Zheng, 1979, nom. illeg. - mammal
ICZN:Arctopsis (Genus) Barnard, 1920, nom. illeg. - crustacean ICZN:Arctopsis (Genus) Athias-Henriot, 1973, nom. illeg. - mite
ICZN:Arctus (Genus) De Haan, 1849 see (Genus) Scyllarus Fabricius, 1775 - crustacean ICZN:Arctus (Genus) Dana, 1852, nom. illeg. see (Genus) Scyllarus Fabricius, 1775 - crustacean
ICZN:Ardelia (Genus) Melichar, 1907 - bug ICZN:Ardelia (Genus) Chamberlain & Baer, 1973, nom. illeg. - crustacean
ICZN:Arenovidalina (Genus) He, 1959 - protist ICZN:Arenovidalina (Genus) Baryshnikov, Zolotova & Kosheleva, 1982, nom. illeg. see (Genus) †Uralogordius Gaillot & Vachard, 2007 - protist
ICZN:Argiope (Genus) Audouin, 1827, orth. cons. - arachnid ICZN:Argiope (Genus) Chambers, 1873, nom. illeg. see (Genus) Acrolepiopsis Gaedike, 1970 - moth
ICZN:Argyria (Genus) Hübner, 1818 - moth ICZN:Argyria (Genus) Robineau-Desvoidy, 1863, nom. illeg. - fly
ICZN:Ariocaelatura (Genus) Germain, 1921 - mollusc ICZN:Ariocaelatura (Genus) Thiele, 1931, nom. illeg. see (Genus) Pseudocaelatura Wenz, 1947, nom. illeg. - mollusc
ICZN:Armandiella (Genus) Ancey, 1901 - mollusc ICZN:Armandiella (Genus) McIntosh, 1915, nom. illeg. - annelid
ICZN:Arnoldina (Subgenus) Hannibal, 1912 - mollusc ICZN:Arnoldina (Genus) Jordan & Gilbert, 1919, nom. illeg. see (Genus) †Arnoldites Jordan, 1923 - fish
ICZN:Aroa (Genus) Walker, 1855 - moth ICZN:Aroa (Genus) Baker, 1930, nom. illeg. see (Genus) Aroapyrgus Baker, 1931 - mollusc
ICZN:Artena (Genus) Walker, 1858 - moth ICZN:Artena (Genus) Conrad, 1870, nom. illeg. - mollusc
ICZN:Arthropterus (Genus) M'Leay, 1838 - beetle ICZN:Arthropterus (Genus) Agassiz, 1843, nom. illeg. see (Genus) †Arthrobatis Whitley, 1940 - fish
ICZN:Artopera (Genus) Haeckel, 1881 - protist ICZN:Artopera (Genus) Haeckel, 1887, nom. illeg. see (Genus) †Artoperina Campbell, 1951 - protist
ICBN:Arundinella (Genus) Raddi (1823) - plant ICBN:Arundinella (Genus) L. Léger & Duboscq (1905) see (Genus) Arundinula L. Léger & Duboscq (1906) - fungus
ICZN:Arythaena (Genus) Deshayes, 1830 see (Genus) Arytene Oken, 1815 - mollusc ICZN:Arythaena (Genus) Menge, 1854 - mite
ICZN:Asbolia (Genus) Herrich-Schäffer, 1856 - moth ICZN:Asbolia (Genus) Möschler, 1872, nom. illeg. - moth
ICBN:Ascidium (Genus) Tode (1782), nom. dub. - fungus ICBN:Ascidium (Genus) Fée (1824), nom. illeg., nom. rej. - fungus
ICBN:Ascomycetella (Genus) Peck (1881) - fungus ICBN:Ascomycetella (Genus) Sacc. (1886) - fungus
ICZN:Ascuris (Genus) Haeckel, 1872 see (Genus) Leucosolenia Bowerbank, 1863 - sponge ICZN:Ascuris (Genus) Simon, 1897, nom. illeg. - arachnid
ICZN:Asopus (Genus) Burmeister, 1834 - bug ICZN:Asopus (Genus) Burmeister, 1834, nom. illeg. - bug
ICZN:Asopus (Genus) Burmeister, 1834 - bug ICZN:Asopus (Genus) Sørensen, 1896, nom. illeg. see (Genus) Sörensenius Berg, 1898, orth. inval. - arachnid
ICZN:Asopus (Genus) Burmeister, 1834, nom. illeg. - bug ICZN:Asopus (Genus) Sørensen, 1896, nom. illeg. see (Genus) Sörensenius Berg, 1898, orth. inval. - arachnid
ICZN:Aspa (Genus) Adams & Adams, 1853 - mollusc ICZN:Aspa (Genus) Walker, 1854, nom. illeg. - moth
ICZN:Aspa (Subgenus) Adams & Adams, 1853 - mollusc ICZN:Aspa (Genus) Walker, 1854, nom. illeg. - moth
ICBN:Aspergillopsis (Genus) Speg. (1910) see (Genus) Aspergillus P. Micheli ex Haller (1768), nom. sanct. - fungus ICBN:Aspergillopsis (Genus) Sopp (1912), nom. illeg., nom. dub. - fungus
ICBN:Aspidella (Genus) Billings (1872) - fungus ICBN:Aspidella (Genus) E.-J. Gilbert (1940), nom. illeg. see (Genus) Amanita Pers. (1797), nom. cons. - fungus
ICZN:Aspidopleurus (Genus) Pictet & Humbert, 1866 - fish ICZN:Aspidopleurus (Genus) Sars, 1891, nom. illeg. see (Genus) Phippsia Stebbing, 1906 - crustacean
ICZN:Aspidorhynchus (Genus) Agassiz, 1833 - fish ICZN:Aspidorhynchus (Genus) Molin, 1858, nom. illeg. see (Genus) Nybelinia Poche, 1926 - flatworm
ICZN:Aspina (Genus) Tripathi, 1956 - flatworm ICZN:Aspina (Genus) Kozhanchikov, 1960, nom. illeg. - moth
ICZN:Aspredo (Genus) Scopoli, 1777 - fish ICZN:Aspredo (Genus) Swainson, 1838, nom. illeg. see (Genus) Bunocephalus Kner, 1855 - fish
ICZN:Assamia (Genus) Sørensen, 1884 - arachnid ICZN:Assamia (Genus) Dayal & Gupta, 1974, nom. illeg. see (Genus) †Satyapalia Lakshminarayana & Hafeezullah, 1974 - flatworm
ICZN:Assamia (Genus) Buckton, 1896, nom. illeg. see (Genus) Proutista Kirkaldy, 1904 - bug ICZN:Assamia (Genus) Dayal & Gupta, 1974, nom. illeg. see (Genus) †Satyapalia Lakshminarayana & Hafeezullah, 1974 - flatworm
ICZN:Assamia (Genus) Gupta, 1955, nom. illeg. - flatworm ICZN:Assamia (Genus) Dayal & Gupta, 1974, nom. illeg. see (Genus) †Satyapalia Lakshminarayana & Hafeezullah, 1974 - flatworm
ICZN:Assamia (Genus) Buckton, 1896, nom. illeg. see (Genus) Proutista Kirkaldy, 1904 - bug ICZN:Assamia (Genus) Gupta, 1955, nom. illeg. - flatworm
ICZN:Assamia (Genus) Sørensen, 1884 - arachnid ICZN:Assamia (Genus) Gupta, 1955, nom. illeg. - flatworm
ICZN:Assamia (Genus) Sørensen, 1884 - arachnid ICZN:Assamia (Genus) Buckton, 1896, nom. illeg. see (Genus) Proutista Kirkaldy, 1904 - bug
ICZN:Astasiella (Genus) Skvortzow, 1958 - protozoan ICZN:Astasiella (Genus) Michajlow, 1965, nom. illeg. see (Genus) Parastasiella Michajlow, 1965 - protist
ICBN:Asteriscium (Genus) Chamisso & D.F.L. Schlechtendal (1826) - plant ICBN:Asteriscium (Genus) Corda (1839), nom. illeg. - alga
ICBN:Asteriscium (Genus) Chamisso & D.F.L. Schlechtendal (1826) - plant ICBN:Asteriscium (Genus) Hilp. (1933), nom. illeg. - plant
ICBN:Asteriscium (Genus) Corda (1839), nom. illeg. - alga ICBN:Asteriscium (Genus) Hilp. (1933), nom. illeg. - plant
ICBN:Asterocystis (Genus) Gobi (1879) - alga ICBN:Asterocystis (Genus) De Wild. (1893) see (Genus) Olpidium (A.Braun) Rabenh. (1868) - fungus
ICZN:Asterodiscus (Genus) Ehrenberg, 1839 see (Genus) Planorbulina d'Orbigny, 1826 - protist ICZN:Asterodiscus (Genus) Gray, 1847, nom. illeg. see (Genus) Asterodiscides Clark, 1974 - echinoderm
ICZN:Asterodiscus (Genus) Gray, 1847, nom. illeg. see (Genus) Asterodiscides Clark, 1974 - echinoderm ICZN:Asterodiscus (Genus) Schafhäutl, 1863, nom. illeg. see (Genus) †Asterocyclina Gümbel, 1868 - protist
ICZN:Asterodiscus (Genus) Ehrenberg, 1839 see (Genus) Planorbulina d'Orbigny, 1826 - protist ICZN:Asterodiscus (Genus) Schafhäutl, 1863, nom. illeg. see (Genus) †Asterocyclina Gümbel, 1868 - protist
ICZN:Asterope (Genus) Hübner, 1819 - butterfly ICZN:Asterope (Genus) Philippi, 1840, nom. illeg. see (Genus) Cylindroleberis Brady, 1867 - crustacean
ICZN:Asterope (Genus) Hübner, 1819 - butterfly ICZN:Asterope (Genus) Mueller & Troschel, 1840, nom. illeg. see (Genus) Asteropsis Mueller & Troschel, 1840 - echinoderm
ICBN:Asterophora (Genus) Ditmar (1809), nom. sanct. - fungus ICBN:Asterophora (Genus) Corda (1840), nom. illeg. see (Genus) Asterophora Ditmar (1809), nom. sanct. - fungus
ICBN:Asterophora (Genus) Ditmar (1809), nom. sanct. - fungus ICBN:Asterophora (Genus) Fr. (1849), nom. illeg. see (Genus) Asterophora Ditmar (1809), nom. sanct. - fungus
ICBN:Asterophora (Genus) Corda (1840), nom. illeg. see (Genus) Asterophora Ditmar (1809), nom. sanct. - fungus ICBN:Asterophora (Genus) Fr. (1849), nom. illeg. see (Genus) Asterophora Ditmar (1809), nom. sanct. - fungus
ICBN:Asterotheca (Genus) C.Presl (1845) - plant ICBN:Asterotheca (Genus) I.Hino (1938), nom. illeg. - fungus
ICBN:Asterothyrium (Genus) Müll.Arg. (1890) - fungus ICBN:Asterothyrium (Genus) Henn. (1904), nom. illeg. see (Genus) Septothyrella Höhn. (1911) - fungus
ICZN:Asthenia (Genus) Westwood, 1841, nom. illeg. see (Genus) Asthenidia Westwood, 1879 - moth ICZN:Asthenia (Genus) Westwood, 1842, nom. illeg. - fly
ICZN:Asticta (Genus) Hübner, 1823 - moth ICZN:Asticta (Genus) Newman, 1838, nom. illeg. - insect
ICZN:Asticta (Genus) Hübner, 1823 - moth ICZN:Asticta (Genus) Wasmann, 1916, nom. illeg. - beetle
ICZN:Asticta (Genus) Newman, 1838, nom. illeg. - insect ICZN:Asticta (Genus) Wasmann, 1916, nom. illeg. - beetle
ICZN:Astraeodes (Genus) Staudinger, 1887 - butterfly ICZN:Astraeodes (Genus) Röber, 1892 see (Genus) Astraeodes Staudinger, 1887 - butterfly
ICBN:Astrosporina (Genus) J.Schröt. (1889) see (Genus) Inocybe (Fr.) Fr. (1863) - fungus ICBN:Astrosporina (Genus) S.Imai (1938), nom. illeg. see (Genus) Inocybe (Fr.) Fr. (1863) - fungus
ICZN:Asychis (Genus) Kinberg, 1866 - annelid ICZN:Asychis (Genus) Gray, 1867, nom. illeg. see (Subgenus) Gellius Gray, 1867 - sponge
ICZN:Atea (Genus) Koch, 1837 - arachnid ICZN:Atea (Subgenus) Pilsbry & Cooke, 1933, nom. illeg. see (Subgenus) Auhea Kondo, 1962 - mollusc
ICZN:Athis (Genus) Hübner, 1819 - moth ICZN:Athis (Genus) Hübner, 1819 sensu Houlbert, 1918 see (Genus) Hista Oiticica Filho, 1954 - moth
ICZN:Athrodon (Genus) Sauvage, 1880 - fish ICZN:Athrodon (Genus) Osborn, 1887, nom. illeg. see (Genus) †Kurtodon Osborn, 1887 - mammal
ICZN:Atilia (Genus) Adams & Adams, 1853 - fly ICZN:Atilia (Genus) Robineau-Desvoidy, 1863, nom. illeg. - mollusc
ICZN:Atractotrema (Genus) Cossmann, 1888 - mollusc ICZN:Atractotrema (Genus) Goto & Ozaki, 1929, nom. illeg. - flatworm
ICZN:Atrephes (Genus) Jones, 1908 - moth ICZN:Atrephes (Genus) Hampson, 1908, nom. illeg. see (Genus) Atrephes Jones, 1908 - moth
ICZN:Atreus (Subgenus) Gervais, 1843 - arachnid ICZN:Atreus (Genus) Grote, 1886, nom. illeg. see (Genus) Atreides Holland, 1903 - moth
ICZN:Atriotaenia (Genus) Sandground, 1926 - flatworm ICZN:Atriotaenia (Genus) Spasski, 1951, nom. illeg. - flatworm
ICZN:Atropis (Genus) Glückselig, 1851 - reptile ICZN:Atropis (Subgenus) Pease, 1871, nom. illeg. - mollusc
ICZN:Atropis (Genus) Kirschbaum, 1867, nom. illeg. - bug ICZN:Atropis (Subgenus) Pease, 1871, nom. illeg. - mollusc
ICZN:Atropis (Genus) Glückselig, 1851 - reptile ICZN:Atropis (Genus) Kirschbaum, 1867, nom. illeg. - bug
ICZN:Atychia (Genus) Ochsenheimer, 1808 see (Genus) Procris Fabricius, 1807 - moth ICZN:Atychia (Genus) Latreille, 1809, nom. illeg. - moth
ICZN:Atylodes (Genus) Gistel, 1868 - amphibian ICZN:Atylodes (Genus) Broun, 1914, nom. illeg. - beetle
ICZN:Aubertia (Genus) Oberthür, 1896 - butterfly ICZN:Aubertia (Genus) Théry, 1922, nom. illeg. - beetle
ICZN:Aubertia (Genus) Oberthür, 1896 - butterfly ICZN:Aubertia (Genus) Viktorov, 1968, nom. illeg. see (Genus) Aubertiana Viktorov, 1970 - insect
ICZN:Aubertia (Genus) Théry, 1922, nom. illeg. - beetle ICZN:Aubertia (Genus) Viktorov, 1968, nom. illeg. see (Genus) Aubertiana Viktorov, 1970 - insect
ICBN:Aubletia (Genus) Gaertn. (1788) - plant ICBN:Aubletia (Genus) Schreber (1789) - plant
ICBN:Aubletia (Genus) Schreber (1789) - plant ICBN:Aubletia (Genus) Loureiro (1790) - plant
ICBN:Aubletia (Genus) Gaertn. (1788) - plant ICBN:Aubletia (Genus) Loureiro (1790) - plant
ICBN:Aubletia (Genus) Gaertn. (1788) - plant ICBN:Aubletia (Genus) Persoon (1807) - plant
ICBN:Aubletia (Genus) Schreber (1789) - plant ICBN:Aubletia (Genus) Persoon (1807) - plant
ICBN:Aubletia (Genus) Loureiro (1790) - plant ICBN:Aubletia (Genus) Persoon (1807) - plant
ICZN:Aulacodes (Genus) Guenée, 1854 - moth ICZN:Aulacodes (Genus) Cresson, 1865, nom. illeg. - wasp
ICZN:Auloplegma (Genus) Haeckel, 1869 see (Genus) Guancha Miklucho-Maclay, 1868 - sponge ICZN:Auloplegma (Genus) Haeckel, 1887, nom. illeg. - protozoan
ICZN:Auloplegma (Genus) Schmidt, 1879, nom. illeg. see (Genus) Scleroplegma Schmidt, 1880 - sponge ICZN:Auloplegma (Genus) Haeckel, 1887, nom. illeg. - protozoan
ICZN:Auloplegma (Genus) Haeckel, 1869 see (Genus) Guancha Miklucho-Maclay, 1868 - sponge ICZN:Auloplegma (Genus) Schmidt, 1879, nom. illeg. see (Genus) Scleroplegma Schmidt, 1880 - sponge
ICBN:Aurelia (Genus) Cassini (1817) see (Genus) Donia R.Br. (1813) - plant ICBN:Aurelia (Genus) J. Gay (1858) - plant
ICZN:Aureliania (Genus) Gosse, 1860 see (Genus) Kapnea Forbes, 1841 - invertebrate ICZN:Aureliania (Subgenus) Fain, 1958, nom. illeg. - mite
ICBN:Auricula (Genus) Castrac. (1873) - alga ICBN:Auricula (Genus) Battarra ex Kuntze (1891), nom. illeg. see (Genus) Auricularia Bull. (1780) - fungus
ICZN:Auritus (Subgenus) Westerlund, 1883 - mollusc ICZN:Auritus (Genus) Constantineanu, 1969, nom. illeg. - wasp
ICZN:Austracarus (Genus) Lawrence, 1949 - mite ICZN:Austracarus (Genus) Balogh & Balogh, 1983, nom. illeg. see (Genus) Ozacarus Colloff & Halliday, 1998 - mite
ICZN:Austracarus (Genus) Lawrence, 1949 - mite ICZN:Austracarus (Genus) Mahunka, 1984, nom. illeg. see (Genus) Ululohmannia Mahunka, 1987 - mite
ICZN:Austracarus (Genus) Balogh & Balogh, 1983, nom. illeg. see (Genus) Ozacarus Colloff & Halliday, 1998 - mite ICZN:Austracarus (Genus) Mahunka, 1984, nom. illeg. see (Genus) Ululohmannia Mahunka, 1987 - mite
ICZN:Australolaelaps (Genus) Girault, 1925 - wasp ICZN:Australolaelaps (Genus) Womersley, 1956, nom. illeg. see (Genus) Thadeua Domrow, 1977 - mite
ICZN:Australospongia (Genus) Howell, 1952 - sponge ICZN:Australospongia (Subgenus) Cook & Bergquist, 2001, nom. illeg. - sponge
ICZN:Austriella (Genus) Tenison-Woods, 1881, nom. dub. - mollusc ICZN:Austriella (Genus) Bittner, 1890, nom. illeg. see (Genus) Austriellina Schuchert & Le Vene, 1929 - invertebrate
ICZN:Austrolaelaps (Genus) Girault, 1929 - insect ICZN:Austrolaelaps (Genus) Womersley, 1956, nom. illeg. - mite
ICZN:Austronema (Genus) Cobb, 1914 - nematode ICZN:Austronema (Genus) Bandel, 2002, nom. illeg. - mollusc
ICZN:Austrotoma (Genus) Finlay, 1924 - mollusc ICZN:Austrotoma (Genus) Riek, 1955, nom. illeg. see (Genus) Riekefella Özdikmen, 2005 - wasp
ICZN:Autanepsia (Genus) Turner, 1908 - moth ICZN:Autanepsia (Genus) Turner, 1910, nom. illeg. - moth
ICZN:Avakubia (Genus) Pilsbry, 1919 - mollusc ICZN:Avakubia (Genus) Lessert, 1927, nom. illeg. see (Genus) Pellolessertia Strand, 1929 - arachnid
ICZN:Avalonia (Genus) Walcott, 1889 - arthropod ICZN:Avalonia (Genus) Seeley, 1898, nom. illeg. see (Genus) †Avalonianus Kuhn, 1961, nom. dub. - reptile
ICZN:Avarua (Subgenus) Baker, 1938 - mollusc ICZN:Avarua (Genus) Marples, 1955, nom. illeg. - arachnid
ICZN:Avela (Genus) Walker, 1856 - moth ICZN:Avela (Genus) Nouzarede, 1975, nom. illeg. - protist
ICZN:Avellana (Genus) d'Orbigny, 1843 - mollusc ICZN:Avellana (Genus) Paulsen, 1931, nom. illeg. - protozoan
ICZN:Aviculoperna (Genus) Cossmann, 1887 - mollusc ICZN:Aviculoperna (Genus) Pcelincev, 1931, nom. illeg. - mollusc
ICZN:Axiagasta (Genus) Turner, 1930 - moth ICZN:Axiagasta (Genus) Meyrick, 1930, nom. illeg. - moth
ICZN:Axiidae (Family) Huxley, 1879 - crustacean ICZN:Axiidae (Family) Rebel, 1919, nom. illeg. see (Family) Cimeliidae Chrétien, 1916 - moth
ICZN:Axiidae (Family) Huxley, 1879 - crustacean ICZN:Axiidae (Family) Rebel, 1919, nom. illeg. see (Family) Cimeliidae Chrétien, 1916 - moth
ICZN:Axiidae (Family) Huxley, 1879 - crustacean ICZN:Axiidae (Family) Rebel, 1919, nom. illeg. see (Family) Cimeliidae Chrétien, 1916 - moth
ICZN:Axiidae (Family) Huxley, 1879 - crustacean ICZN:Axiidae (Family) Rebel, 1919, nom. illeg. see (Family) Cimeliidae Chrétien, 1916 - moth
ICZN:Axiothea (Genus) Pascoe, 1864 - beetle ICZN:Axiothea (Genus) Fåhraeus & Ryley, 1989, nom. illeg. - fish
ICZN:Axiothea (Genus) Malmgren, 1865, nom. illeg. - annelid ICZN:Axiothea (Genus) Fåhraeus & Ryley, 1989, nom. illeg. - fish
ICZN:Axocyathus (Genus) de Fromentel, 1865 - invertebrate ICZN:Axocyathus (Genus) Alloiteau, 1952, nom. illeg. - invertebrate
ICZN:Axona (Genus) Walker, 1864 - fly ICZN:Axona (Genus) Kramer, 1875, nom. illeg. see (Genus) Brachypoda Lebert, 1879 - mite
ICZN:Azteca (Genus) Forel, 1878 - ant ICZN:Azteca (Genus) Jordan & Evermann, 1896, nom. illeg. see (Genus) Aztecula Jordan & Evermann, 1898 - fish
ICZN:Azuayia (Genus) Dodge, 1967 - fly ICZN:Azuayia (Genus) Rindge, 1983, nom. illeg. see (Genus) Postazuayia Rindge, 1986 - moth
 
Primary homonyms
 
Senior homonymJunior homonym
 
ICZN:Aegeria flava Moore, 1879 see Schimia flava (Moore, 1879) - moth ICZN:Aegeria flava Edwards, 1881, nom. illeg. see Synanthedon neotropica Heppner & Duckworth, 1981 - moth
ICZN:Aegeria tricincta Harris, 1839 - moth ICZN:Aegeria tricincta Moore, 1879, nom. illeg. see Synanthedon moorei Heppner & Duckworth, 1981 - moth
ICZN:Agama cristata Merrem, 1820 see Corytophanes cristatus (Merrem, 1820) - reptile ICZN:Agama cristata Mocquard, 1905 - reptile
ICZN:Anolis punctatus Daudin, 1802 - reptile ICZN:Anolis punctatus Gray, 1840, nom. illeg. see Anolis grahami Gray, 1845 - reptile
ICZN:Aranea depressa Razoumowsky, 1789 - arachnid ICZN:Aranea depressa Walckenaer, 1802, nom. illeg. see Ballus depressus (Walckenaer, 1802), nom. illeg. - arachnid
ICZN:Araneus lineatus C. Clerck, 1757 - arachnid ICZN:Araneus lineatus Franganillo, 1931, nom. illeg. - arachnid
 
Secondary homonyms
 
Senior homonymJunior homonym
 
ICZN:Antichloris viridis Druce, 1884 - moth ICZN:Antichloris viridis (Lathy, 1899), nom. illeg. see Antichloris metallica Rothschild, 1912 - moth
ICZN:Araneus bipunctatus (Thorell, 1898) - arachnid ICZN:Araneus bipunctatus Franganillo, 1931, comb. illeg. - arachnid
ICZN:Argoctenus vittatus (Simon, 1889) - arachnid ICZN:Argoctenus vittatus (Rainbow, 1920) - arachnid
 
Allowed homonyms
 
Senior homonymJunior homonym
 
ICZN:Abelia (Genus) Kretzoi, 1938 - mammal ICBN:Abelia (Genus) R.Br. (1818) - plant
Geography:Abra (Province) (Philippines) - geographical region ICZN:Abra (Genus) Lamarck, 1818 - mollusc
Geography:Abra (Province) (Philippines) - geographical region ICZN:Abra (Subgenus) Lamarck, 1818 see (Genus) Abra Lamarck, 1818 - mollusc
ICZN:Acantharia (Genus) Quenstedt, 1881 - invertebrate ICBN:Acantharia (Genus) Theiss. & Syd. (1918) - fungus
ICZN:Acanthella (Genus) Schmidt, 1862 - sponge ICBN:Acanthella (Genus) Hook.f. (1867) - plant
ICBN:Acanthella (Genus) Hook.f. (1867) - plant ICZN:Acanthella (Genus) Allman, 1883, nom. illeg. see (Genus) Cladacanthella Calder, 1997 - invertebrate
ICBN:Acanthocarpus (Genus) Lehm. (1848) - plant ICZN:Acanthocarpus (Genus) Stimpson, 1870 - crustacean
ICBN:Acanthocephalus (Genus) Karelin & Kir. (1842) - plant ICZN:Acanthocephalus (Genus) A. von Frantzius, 1848, nom. illeg. - protozoan
ICZN:Acanthocephalus (Genus) Koelreuter, 1771 - invertebrate ICBN:Acanthocephalus (Genus) Karelin & Kir. (1842) - plant
ICBN:Acanthocephalus (Genus) Karelin & Kir. (1842) - plant ICZN:Acanthocephalus (Genus) Qiu, 1983, nom. illeg. - arthropod
ICBN:Acantholepis (Genus) Less. (1831) - plant ICZN:Acantholepis (Genus) Mayr, 1861, nom. illeg. see (Genus) Baroniurbania Pagliano & Scaramozzino, 1989 - ant
ICBN:Acanthopale (Genus) C.B.Clarke (1899) - plant ICZN:Acanthopale (Genus) G. San Martín, 1986 - annelid
ICZN:Acanthopsis (Genus) van Hasselt, 1824, nom. illeg. see (Genus) Acantopsis van Hasselt, 1823 - fish ICBN:Acanthopsis (Genus) Harv. (1842) - plant
ICZN:Acanthosphaera (Genus) Ehrenberg, 1858 - protist ICBN:Acanthosphaera (Genus) Lemmermann (1899) - alga
ICZN:Acanthosphaera (Genus) Ehrenberg, 1858 - protist ICBN:Acanthosphaera (Genus) Warb. (1907), nom. illeg. see (Genus) Naucleopsis Miquel, in Mart. (1853) - plant
ICBN:Acanthosphaera (Genus) Warb. (1907), nom. illeg. see (Genus) Naucleopsis Miquel, in Mart. (1853) - plant ICZN:Acanthosphaera (Genus) Duan, 1984, nom. illeg. - invertebrate
ICBN:Acanthosphaera (Genus) Lemmermann (1899) - alga ICZN:Acanthosphaera (Genus) Duan, 1984, nom. illeg. - invertebrate
ICBN:Acanthosphaeria (Genus) see (Genus) Acanthosphaera Lemmermann (1899) - alga ICBN:Acanthosphaeria (Genus) Kirschst. (1939) - fungus
ICZN:Acineta (Genus) Ehrenberg, 1834 - protist ICBN:Acineta (Genus) Lindl. (1843) - plant
ICBN:Acourtia (Genus) D.Don (1830) - plant ICZN:Acourtia (Genus) Cockerell, 1921 - wasp
ICZN:Acrotylus (Genus) Fieber, 1853 - insect ICBN:Acrotylus (Genus) J.Agardh (1849) - alga
ICZN:Actinocephalus (Genus) Stein, 1848 - protozoan ICBN:Actinocephalus (Genus) (Körn.) Sano - plant
ICBN:Actinopeltis (Genus) Höhn. (1907) - fungus ICZN:Actinopeltis (Genus) Hawle & Corda, 1847 - arthropod
ICZN:Actinosoma (Genus) Holmberg, 1883 - arachnid ICBN:Actinosoma (Genus) Syd. (1930) see (Genus) Actinopeltis Höhn. (1907) - fungus
ICZN:Acystis (Genus) Labbé, 1894 see (Genus) Eimeria Schneider, 1875 - protozoan ICBN:Acystis (Genus) Schiffner (1934) - alga
ICZN:Agapetes (Genus) Billberg, 1820, nom. rej. see (Genus) Melanargia Meigen, 1828 - butterfly ICBN:Agapetes (Genus) D.Don ex G.Don (1834) - plant
ICBN:Alania (Genus) Endl. (1836) - plant ICZN:Alania (Genus) Berge & Vader, 2001 - crustacean
ICBN:Alibertia (Genus) A.Rich. ex DC. (1830) - plant ICZN:Alibertia (Genus) Risbec, 1951 - wasp
ICZN:Allotropa (Genus) Förster, 1856 - wasp ICBN:Allotropa (Genus) J. Torrey & A.Gray (1858) - plant
ICZN:Alona (Genus) Baird, 1843 - crustacean ICBN:Alona (Genus) Baird (1850) see (Genus) Nolana L.f. (1762) - plant
ICZN:Alpinia (Genus) Brundin, 1948 - beetle ICBN:Alpinia (Genus) Roxburgh (1810), nom. cons. - plant
ICBN:Alpinia (Genus) L. (1753), nom. rej. - plant ICZN:Alpinia (Genus) Brundin, 1948 - beetle
ICZN:Alsophila (Genus) Hübner, 1825 - moth ICBN:Alsophila (Genus) R.Br. - plant
Botany:Alysson (Genus) nom. inval. see (Genus) Alyssum nom. inval. - plant ICZN:Alysson (Genus) Panzer, 1806 - wasp
ICBN:Amaryllis (Genus) L. (1753) - plant ICZN:Amaryllis (Genus) Haswell, 1879 - crustacean
Botany:Amaryllis (Genus) nom. inval. see (Genus) Amaryllis L. (1753) - plant ICZN:Amaryllis (Genus) Haswell, 1879 - crustacean
Astronomy:Amber (Minor planet) - astronomical entity Chemistry:amber ([unranked]) - substance
Geography:Amboina (Island) see (Island) Ambon - geographical region ICZN:Amboina (Genus) Kirkaldy, 1913 - bug
ICBN:Amphipogon (Genus) R.Br. (1810) - plant ICZN:Amphipogon (Genus) Wahlberg, 1845 - fly
ICBN:Amphisphaerella (Genus) (Sacc.) Kirschst. (1934) - fungus ICZN:Amphisphaerella (Genus) Haeckel, 1887 - protist
ICZN:Amphora (Genus) Kützing, 1844 - bug ICBN:Amphora (Genus) Ehrenb. (1840) - alga
ICBN:Anacharis (Genus) Rich. (1814) see (Genus) Elodea Michx. (1803) - plant ICZN:Anacharis (Genus) Dalman, 1823 - wasp
Geography:Andes (Mountain Range) (South America) - geographical region ICZN:Andes (Genus) Stål, 1866 - bug
ICBN:Andrea (Genus) Mez, in A.DC. & A.C. de Candolle (1896) - plant ICZN:Andrea (Genus) L.L. Mishchenko, in A.V. Gorochov et al., 1989 - insect
ICZN:Anna (Genus) Risso, 1826 - mollusc ICBN:Anna (Genus) Pellegrin (1930) - plant
ICZN:Anthophila ([unranked]) Latreille, 1804 - bee ICZN:Anthophila (Genus) Ochsenheimer, 1816, nom. illeg. see (Genus) Thalpochares Lederer, 1853 - moth
ICZN:Anthophila ([unranked]) Latreille, 1804 - bee ICZN:Anthophila (Genus) Haworth, 1811 - moth
ICZN:Antillia (Genus) Duncan, 1864 - invertebrate ICBN:Antillia (Genus) R.M. King & H.Rob. (1971) - plant
ICBN:Apista (Genus) Blume (1825) - plant ICZN:Apista (Genus) Hübner, [1825] - moth
ICZN:Apotropina (Genus) Hendel, 1907 - fly ICZN:Apotropina (Subtribe) Key, 1993 - insect
ICZN:Apseudomorpha (Genus) Miller, 1940 - crustacean Zoology:Apseudomorpha (Suborder) Sieg, 1980 - crustacean
ICZN:Archboldiella (Genus) Heinrich, 1934 - wasp ICBN:Archboldiella (Genus) Bartram (1942) - plant
ICZN:Archeria (Genus) Case, 1918 - amphibian ICBN:Archeria (Genus) Hook.f. (1857) - plant
ICZN:Arctica (Genus) Schumacher, 1817 - mollusc Astronomy:Arctica (Minor planet) - astronomical entity
ICBN:Arctophila (Genus) (Ruprecht) Andersson (1852) - plant ICZN:Arctophila (Genus) Schiner, 1860 - fly
ICZN:Arenaria (Genus) Brisson, 1760 - bird ICBN:Arenaria (Genus) L. (1753) - plant
ICZN:Argentina (Genus) Linnaeus, 1758 - fish ICBN:Argentina (Genus) Hill - plant
ICZN:Arizona (Genus) Kennicott, 1859 - reptile ICNP:Arizona (Genus) - prokaryote
ICZN:Arum (Genus) Cocks, 1853 - invertebrate ICBN:Arum (Genus) L. (1753) - plant
ICZN:Astarte (Genus) Sowerby, 1816 - mollusc Astronomy:Astarte (Minor planet) - astronomical entity
Astronomy:Astarte (Minor planet) - astronomical entity ICZN:Astarte (Subgenus) Sowerby, 1816 - mollusc
ICZN:Asterococcus (Genus) Borkhsenius, 1960 - bug ICBN:Asterococcus (Genus) Scherffel (1908) - alga
ICZN:Atractomorpha (Genus) Saussure, 1862 - insect ICBN:Atractomorpha (Genus) L.R. Hoffman (1983) - alga
ICBN:Audouinia (Genus) Brongn. (1826) - plant ICZN:Audouinia (Genus) Quatrefages, 1866 see (Genus) Cirriformia Hartman, 1936 - annelid
ICBN:Augusta (Genus) Pohl (1828), nom. cons. - plant ICZN:Augusta (Genus) O. P.-Cambridge, 1877 - arachnid
ICZN:Axion (Genus) Mulsant, 1850 - beetle Physics:axion [hypothetical] - physical entity
ICZN:Azilia (Genus) Keyserling, 1881 - arachnid ICBN:Azilia (Genus) I.C. Hedge & J.M. Lamond (1987) - plant
 
Similar names
 
Senior homonymJunior homonym
 
ICZN:Aenobarbus (Genus) Agassiz, 1842 - bird ICZN:Enobarbus (Genus) Whitley, 1928 see (Genus) Lepidocephalichthys Bleeker, 1863 - fish
ICZN:Alexandrinum (Genus) Molin, 1861 - fish ICZN:Alexandria (Genus) Pfeffer, 1881 - echinoderm
 
Informal homonyms
 
Senior homonymJunior homonym
 
ICZN:Abas (Genus) Fennah, 1950 - bug ICZN:Abas (Genus) Ernst, van Andel, Drent, Tinbergen & Bakker, 1985, orth. inval. see (Genus) Abax Bonelli, 1810 - beetle
ICBN:Abas (Genus) R. Ross & P.A. Sims (1980) - alga ICZN:Abas (Genus) Ernst, van Andel, Drent, Tinbergen & Bakker, 1985, orth. inval. see (Genus) Abax Bonelli, 1810 - beetle
ICZN:Abas (Genus) Núñez & Yáñez, 1984, nom. illeg. see (Genus) Liolaemus Wiegmann, 1834 - reptile ICZN:Abas (Genus) Ernst, van Andel, Drent, Tinbergen & Bakker, 1985, orth. inval. see (Genus) Abax Bonelli, 1810 - beetle
ICZN:Abeichthys (Genus) McCulloch, 1929, orth. inval. see (Genus) Abcichthys Whitley, 1927 - fish ICZN:Abeichthys (Subgenus) Parin, 1961 - fish
ICZN:Abeichthys (Genus) McCulloch, 1929, orth. inval. see (Genus) Abcichthys Whitley, 1927 - fish ICZN:Abeichthys (Subgenus) Parin, 1961 - fish
ICZN:Abila (Genus) Gray, 1867, nom. null. see (Genus) Palisia Gray, 1867 - sponge ICZN:Abila (Genus) Stål, 1878, nom. illeg. see (Genus) Abilenia Strand, 1928 - insect
ICZN:Abila (Genus) Gray, 1867, nom. null. see (Genus) Palisia Gray, 1867 - sponge ICZN:Abila (Genus) Gray, 1867 see (Subgenus) Microciona Bowerbank, 1862 - sponge
ICZN:Acantharia (Genus) Quenstedt, 1881 - invertebrate ICZN:Acantharia (Genus) Margulis & Schwartz, 1982, nom. nud. see (Class) Acantharia Haeckel, 1881 - protozoan
ICBN:Acantharia (Genus) Theiss. & Syd. (1918) - fungus ICZN:Acantharia (Genus) Margulis & Schwartz, 1982, nom. nud. see (Class) Acantharia Haeckel, 1881 - protozoan
ICZN:Acanthiops (Genus) Waltz & McCafferty, 1987 - insect ICZN:Acanthiops (Genus) orth. inval. see (Genus) Acontophiops Sternfeld, 1912 - reptile
ICZN:Acantholepis (Genus) Mayr, 1861, nom. illeg. see (Genus) Baroniurbania Pagliano & Scaramozzino, 1989 - ant ICZN:Acantholepis (Genus) Paul, 1972 see (Genus) †Acanthalepis McCoy, 1846 - echinoderm
ICZN:Acantholophus (Genus) Dejean, 1834, nom. nud. see (Genus) Acantholophus Guérin-Ménéville, 1838 - beetle ICZN:Acantholophus (Genus) Koch, 1839, nom. illeg. - arachnid
ICZN:Acanthonotus (Genus) Cuvier, 1800 - fish ICZN:Acanthonotus (Genus) Goldfuss, 1809 see (Genus) Tachyglossus Illiger, 1811 - mammal
ICZN:Acanthonotus (Genus) Cuvier, 1800 - fish ICZN:Acanthonotus (Genus) Nalepa, 1889, nom. illeg. see (Genus) Tegonotus Nalepa, 1890 - mite
ICZN:Acanthonotus (Genus) Cuvier, 1800 - fish ICZN:Acanthonotus (Genus) Ross, 1835, nom. illeg. see (Genus) Acanthonotozoma Boeck, 1876 - crustacean
ICZN:Acardia (Genus) Schinz, 1822 - mollusc ICZN:Acardia (Genus) Berthold, 1827, nom. nud. - mollusc
ICZN:Acastea (Genus) Rafinesque, 1815, nom. nud. - annelid ICZN:Acastea (Genus) Yang, 1993 - protist
ICZN:Aceropsis (Genus) Stuxberg, 1880, nom. nud. see (Genus) Arrhis Stebbing, 1906 - crustacean ICZN:Aceropsis (Genus) Sars, 1892 see (Genus) Aceroides Sars, 1892 - crustacean
ICZN:Acerus (Genus) Dejean, 1833, nom. nud. see (Genus) Acerus Burmeister, 1847, nom. illeg. - beetle ICZN:Acerus (Genus) Agassiz, 1846 - bird
ICZN:Acerus (Genus) Dejean, 1833, nom. nud. see (Genus) Acerus Burmeister, 1847, nom. illeg. - beetle ICZN:Acerus (Genus) Michael, 1884, nom. illeg. - arachnid
Geology:Achates Theophrastus see agate - geological entity ICZN:Achates (Subgenus) sensu Mörch, 1860 - mollusc
ICZN:Achates (Subgenus) sensu Mörch, 1860 - mollusc Astronomy:Achates (Minor planet) (1991 XX) - astronomical entity
ICZN:Acrobotrissa (Subgenus) Haeckel, 1887 see (Genus) Acrobotrissa Haeckel, 1887 - protist ICZN:Acrobotrissa (Genus) Popofsky, 1913, nom. illeg. - protist
ICZN:Actaeon (Genus) orth. inval. see (Genus) Acteon Montfort, 1810 - mollusc ICZN:Actaeon (Genus) Rang, 1829 - mollusc
ICNP:Actinomyces roseus Namyslowski 1912 - prokaryote ICNP:Actinomyces roseus Krainsky 1914 see Streptomyces roseus (Chalmers and Christopherson 1916) Pridham et al. 1958 - prokaryote
ICNP:Actinomyces roseus Namyslowski 1912 - prokaryote ICNP:Actinomyces roseus Krainsky 1914 see Streptomyces roseus (Chalmers and Christopherson 1916) Pridham et al. 1958 - prokaryote
ICZN:Acus (Genus) Müller, 1774, nom. inval. see (Genus) Belone Cuvier, 1816 - fish ICZN:Acus (Genus) Gray, 1847, nom. illeg. see (Genus) Oxymeris Dall, 1903 - mollusc
ICZN:Adenus (Genus) Yokoyama, 1926 - mollusc ICZN:Adenus (Genus) nom. null. see (Genus) †Adensu Popov & Rukavishnikova, 1986 - invertebrate
ICZN:Adrapsa (Genus) Walker, 1858 - moth ICZN:Adrapsa (Genus) Pagenstecher, 1909 see (Genus) Adrepsa Moore, 1879 - moth
ICZN:Aerope (Genus) Desmarest, 1823, nom. nud. - crustacean ICZN:Aerope (Genus) White, 1847 - mollusc
ICZN:Aerope (Genus) Desmarest, 1823, nom. nud. - crustacean ICZN:Aerope (Genus) Martens, 1860, nom. illeg. see (Genus) Natalina Pilsbry, 1893 - mollusc
ICZN:Alexandrella (Genus) Chevreux, 1911 - crustacean ICZN:Alexandrella (Genus) Bykova, 1958 see (Genus) †Maylisoria Bykova, 1961 - protist
ICZN:Alliphis (Genus) Halbert, 1923 - mite ICZN:Alliphis (Genus) Vitzthum, 1931 - mite
ICZN:Almeria (Genus) Paetel, 1875 see (Genus) Ameria Adams, 1861 - mollusc ICZN:Almeria (Genus) Agenjo, 1949 - moth
ICZN:Alucitina (Family) Zeller, 1841, orth. inval. see (Family) Alucitidae Leach, 1815 - moth ICZN:Alucitina (Genus) Heydenreich, 1851, nom. illeg. see (Genus) Alucita Linnaeus, 1758 - moth
ICZN:Amazonella (Genus) Lundblad, 1931 - mite ICZN:Amazonella (Genus) Myers, 1934, nom. nud. - fly
ICZN:Amblycerus (Genus) Thunberg, 1815 - beetle ICZN:Amblycerus (Genus) nom. null. see (Genus) Amblycercus Cabanis, in Cabanis & Heine, 1850-1851[1851] - bird
ICZN:Angelus (Genus) Aldrich, 1911 - mollusc ICZN:Angelus (Genus) Hering, 1933 - moth
ICZN:Aplodontidae (Family) Trouessart, 1897, orth. inval. see (Family) Aplodontiidae Brandt, 1855 - mammal ICZN:Aplodontidae (Family) Kuroda, 1933 see (Family) Modulidae Fischer, 1884 - mollusc
ICZN:Aproctus (Genus) Verloren, 1881 - echinoderm ICZN:Aproctus (Genus) Railliet & Henry, 1910 see (Genus) Aprocta Linstow, 1883 - nematode
ICZN:Apterornis (Genus) Owen, 1848, orth. inval. see (Genus) Aptornis Owen, 1848 - bird ICZN:Apterornis (Genus) Sélys-Longchamps, 1848 - bird
ICZN:Apus (Genus) Scopoli, 1777 - bird ICZN:Apus (Genus) Cuvier, 1798, nom. nud. see (Genus) Triops Schrank, 1803 - crustacean
Botany:Ara (Family) Adans. (1763), nom. inval. see (Family) Araceae Juss. (1789), nom. cons. - plant ICZN:Ara (Genus) Lacépède, 1799 - bird
Astronomy:Ara (Constellation) veter. - astronomical entity Botany:Ara (Family) Adans. (1763), nom. inval. see (Family) Araceae Juss. (1789), nom. cons. - plant
ICZN:Araeostoma (Genus) Turner, 1917 - moth ICZN:Araeostoma (Genus) Hampson - moth
ICZN:Aragonia (Genus) Stephens, 1835 see (Genus) Arcyonia Hübner, [1825] - moth ICZN:Aragonia (Genus) Carpenter, 1857 - mollusc
ICZN:Aragonia (Genus) Stephens, 1835 see (Genus) Arcyonia Hübner, [1825] - moth ICZN:Aragonia (Genus) Finlay, 1939 - protist
ICZN:Aragonia (Genus) Carpenter, 1857 - mollusc ICZN:Aragonia (Genus) Finlay, 1939 - protist
ICZN:Archiperidium (Genus) Haeckel, 1881, nom. neg. see (Genus) Peridium Haeckel, 1881 - protist ICZN:Archiperidium (Genus) Haeckel, 1887 see (Subgenus) Archiperidium Haeckel, 1887 - protist
ICZN:Archiperidium (Genus) Haeckel, 1881, nom. neg. see (Genus) Peridium Haeckel, 1881 - protist ICZN:Archiperidium (Subgenus) Haeckel, 1887 - protist
Zoology:Arctica nom. inval. - bird ICZN:Arctica (Genus) Schumacher, 1817 - mollusc
ICZN:Arica (Genus) White, 1847, nom. nud. - crustacean ICZN:Arica (Genus) Walker, 1863 - moth
ICZN:Arieticeras (Genus) Quenstedt, 1882, nom. inval. - mollusc ICZN:Arieticeras (Genus) Seguenza, 1885 - mollusc
ICZN:Asteriacites (Genus) Schlotheim, 1820 see (Genus) Asteriatites Schlotheim, 1813 - echinoderm ICZN:Asteriacites (Genus) Schlotheim, 1822 see (Genus) †Actinocyclina Gümbel, 1868 - protist
ICZN:Asterolepis (Genus) Eichwald, 1840 - fish ICZN:Asterolepis (Genus) Razowski, 1964 - moth
ICZN:Astomella (Genus) Oken, 1815, nom. nud. - fly ICBN:Astomella (Genus) Thirum. (1947) - fungus
ICZN:Astraea (Genus) Röding, 1798 - mollusc ICZN:Astraea (Genus) Oken, 1815, orth. inval. see (Genus) Astrea Lamarck, 1801 - invertebrate
ICZN:Astrea (Genus) Lamarck, 1801 - invertebrate ICZN:Astrea (Genus) Link, 1807, orth. inval. see (Genus) Astraea Röding, 1798 - mollusc
ICZN:Astrostoma (Genus) Gray, 1867 - sponge ICZN:Astrostoma (Genus) Alekperov, in Corliss, 1979, nom. nud., nom. illeg. - protist
ICZN:Atreus (Genus) Koch, 1837, nom. inval. see (Genus) Opistophthalmus Koch, 1837 - arachnid ICZN:Atreus (Genus) Grote, 1886, nom. illeg. see (Genus) Atreides Holland, 1903 - moth
ICZN:Atreus (Genus) Koch, 1837, nom. inval. see (Genus) Opistophthalmus Koch, 1837 - arachnid ICZN:Atreus (Subgenus) Gervais, 1843 - arachnid
ICZN:Atta (Genus) Fabricius, [1805] - ant ICZN:Atta (Genus) auct. - ant
ICZN:Atyidae (Family) de Haan, 1849 - crustacean ICZN:Atyidae (Family) Thiele, 1925, orth. rej. see (Family) Atydidae Thiele, 1925 - mollusc
ICZN:Auloplegma (Genus) Haeckel, 1869 see (Genus) Guancha Miklucho-Maclay, 1868 - sponge ICZN:Auloplegma (Genus) Haeckel, 1879, nom. nud. see (Genus) Auloplegma Haeckel, 1887, nom. illeg. - protozoan
ICBN:Auricula (Genus) Battarra (1755), nom. inval. see (Genus) Auricula Battarra ex Kuntze (1891), nom. illeg. - fungus ICZN:Auricula (Genus) Lamarck, 1799, nom. illeg. - mollusc
Zoology:Auricularia nom. inval. - insect ICZN:Auricularia (Genus) Fabricius, 1823, nom. illeg. - mollusc
ICZN:Auritella (Genus) Leach, 1818 - crustacean ICBN:Auritella (Genus) Matheny & Bougher (2006) - fungus
ICZN:Auxides (Genus) Gray, 1842, nom. nud. - fish ICZN:Auxides (Genus) Jordan, 1919 - fish
 
Allowed homonyms
 
Senior homonymJunior homonym
 
ICBN:Aa (Genus) Reichb. f. (1854) - plant ICZN:Aa (Subgenus) Baker, 1940 - mollusc
ICZN:Abas (Genus) Fennah, 1950 - bug ICBN:Abas (Genus) R. Ross & P.A. Sims (1980) - alga
ICBN:Abas (Genus) R. Ross & P.A. Sims (1980) - alga ICZN:Abas (Genus) Núñez & Yáñez, 1984, nom. illeg. see (Genus) Liolaemus Wiegmann, 1834 - reptile
ICBN:Abronia (Genus) Juss. (1789) - plant ICZN:Abronia (Genus) Gray, 1838 - reptile
ICZN:Acamas (Genus) de Montfort, 1808 - mollusc Astronomy:Acamas (Minor planet) (1978 TB) - astronomical entity
ICZN:Acamas (Genus) Duchassaing & Michelotti, 1864, nom. illeg. see (Genus) Acamasina de Laubenfels, 1936 - sponge Astronomy:Acamas (Minor planet) (1978 TB) - astronomical entity
ICZN:Acanthoceras (Genus) Neumayr, 1875 - mollusc ICBN:Acanthoceras (Genus) Honigm. (1909) - alga
ICBN:Acantholepis (Genus) Less. (1831) - plant ICZN:Acantholepis (Genus) Paul, 1972 see (Genus) †Acanthalepis McCoy, 1846 - echinoderm
ICBN:Acanthonema (Genus) Hook.f. (1862), nom. cons. - plant ICZN:Acanthonema (Genus) Grabau, 1909 - mollusc
ICBN:Acanthophora (Genus) J.V.F. Lamouroux (1813) - alga ICZN:Acanthophora (Genus) Sollas, 1873 - sponge
ICBN:Acanthophyllum (Genus) C. Meyer (1831) - plant ICZN:Acanthophyllum (Genus) Dybowski, 1873 - invertebrate
Zoology:Acanthostega (Suborder) Levinsen, 1902 see (Suborder) Cribrimorpha Lang, 1916 - invertebrate ICZN:Acanthostega (Genus) Jarvik, 1952 - amphibian
ICZN:Acanthostoma (Genus) Kriechbaumer, 1894, nom. illeg. - insect ICBN:Acanthostoma (Genus) Theiss. (1912) see (Genus) Phaeodimeriella Speg. (1908) - fungus
ICZN:Acanthostoma (Genus) Fischer[-Waldheim], 1813 - annelid ICBN:Acanthostoma (Genus) Theiss. (1912) see (Genus) Phaeodimeriella Speg. (1908) - fungus
ICZN:Acanthostoma (Genus) Credner, 1883, nom. illeg. - amphibian ICBN:Acanthostoma (Genus) Theiss. (1912) see (Genus) Phaeodimeriella Speg. (1908) - fungus
ICZN:Acanthotrema (Genus) Baker & Rowe, 1990, nom. illeg. - echinoderm ICBN:Acanthotrema (Genus) Frisch (2006) - fungus
ICZN:Acanthotrema (Genus) Oshmarin & Parakhin, 1960, nom. illeg. - flatworm ICBN:Acanthotrema (Genus) Frisch (2006) - fungus
ICZN:Acanthotrema (Genus) Travassos, 1928 - flatworm ICBN:Acanthotrema (Genus) Frisch (2006) - fungus
ICZN:Acarella (Genus) Cohn, 1866 - protozoan ICBN:Acarella (Genus) Syd. (1927) - fungus
ICBN:Acarna (Genus) Boehm. (1760) see (Genus) Atractylis L. (1753) - plant ICZN:Acarna (Genus) Stål, 1863 - bug
ICBN:Acarna (Genus) J. Hill (1762) see (Genus) Picnomon Adans. (1763) - plant ICZN:Acarna (Genus) Stål, 1863 - bug
ICZN:Acca (Genus) Hübner, 1819 - butterfly ICBN:Acca (Genus) O.Berg (1856) - plant
ICBN:Acca (Genus) O.Berg (1856) - plant ICZN:Acca (Genus) Johnson, 1899, nom. illeg. see (Genus) Aka de Laubenfels, 1936, nom. illeg. - sponge
ICBN:Acentra (Genus) Philippi (1870) - plant ICZN:Acentra (Genus) Burrows, 1932 - moth
Zoology:Acephala (Class) Cuvier, 1795 see (Class) Bivalvia Linnaeus, 1758 - mollusc ICBN:Acephala (Genus) Grünig & T.N. Sieber (2005) - fungus
ICBN:Acerbia (Genus) (Sacc.) Sacc. & P.Syd. (1899) - fungus ICZN:Acerbia (Genus) Sotavalta, 1963 - moth
ICBN:Acharia (Genus) Thunb. (1794) - plant ICZN:Acharia (Genus) Hübner, 1819 - moth
ICZN:Achates (Genus) Gistel, 1848, nom. illeg. see (Genus) Janthina Röding, 1798 - mollusc Astronomy:Achates (Minor planet) (1991 XX) - astronomical entity
Geology:Achates Theophrastus see agate - geological entity ICZN:Achates (Genus) Gistel, 1848, nom. illeg. see (Genus) Janthina Röding, 1798 - mollusc
Geology:Achates Theophrastus see agate - geological entity Astronomy:Achates (Minor planet) (1991 XX) - astronomical entity
Philosophy:Acheron (Stream) (Greek Mythology) - geographical region ICZN:Acheron (Genus) Lefebvre, 1842 - insect
ICZN:Achilus (Genus) Kirby, 1819 - bug ICBN:Achilus (Genus) Hemsl. (1895) - plant
ICZN:Achlya (Genus) Billberg, 1820 - moth ICBN:Achlya (Genus) Nees (1823) - protist
ICBN:Acia (Genus) Schreb. (1791) see (Genus) Acioa Aubl. (1775) - plant ICZN:Acia (Genus) McAtee, 1934 - bug
ICBN:Acia (Genus) P.Karst. (1879), nom. illeg. see (Genus) Mycoacia Donk (1931) - fungus ICZN:Acia (Genus) McAtee, 1934 - bug
ICZN:Acidiella (Genus) Hendel, 1914 - fly ICBN:Acidiella (Genus) Hujslová & M. Kolarík (2013) - fungus
ICBN:Acmella (Genus) Rich. ex Pers. (1807) - plant ICZN:Acmella (Genus) Blanford, 1869 - mollusc
ICZN:Acostaea (Genus) d'Orbigny, 1851 - mollusc ICBN:Acostaea (Genus) Schltr. (1923) - plant
ICZN:Acrasia (Genus) Rogenhofer, 1875 - moth Zoology:Acrasia (Phylum) van Tieghem, 1880 - eukaryote
ICBN:Acrista (Genus) O.F. Cook (1901) - plant ICZN:Acrista (Subgenus) Hedley, 1922 - mollusc
ICZN:Acrocephalus (Genus) Naumann & Naumann, 1811 - bird ICBN:Acrocephalus (Genus) Benth. (1829) - plant
PhyloCode:Acrodonta (Clade) Cope 1864 [Estes et al. 1988] see (Infraorder) Acrodonta Cope, 1864 - reptile ICZN:Acrodonta (Genus) Redtenbacher, 1891 - insect
Zoology:Acrodonta (Infraorder) Cope, 1864 - reptile ICZN:Acrodonta (Genus) Redtenbacher, 1891 - insect
ICBN:Acroelytrum (Genus) Steudel (1846) - plant ICZN:Acroelytrum (Genus) Mayr, 1865 - bug
ICBN:Acrolophus (Genus) Cassini (1827) - plant ICZN:Acrolophus (Genus) Ramme, 1941, nom. illeg. - insect
ICBN:Acrolophus (Genus) Cassini (1827) - plant ICZN:Acrolophus (Genus) Poey, 1832 - moth
ICBN:Acrophyllum (Genus) Benth. (1838) - plant ICZN:Acrophyllum (Genus) Thomson & Nicholson, 1876 - invertebrate
ICZN:Acropteris (Genus) Geyer, 1832 - moth ICBN:Acropteris (Genus) Link (1833) - plant
ICBN:Acrospira (Genus) Welwitsch ex Baker (1878) see (Genus) Debesia Kuntze (1891) - plant ICZN:Acrospira (Genus) Batten, 1985 - mollusc
ICBN:Acrospira (Genus) Mont. (1857) - fungus ICZN:Acrospira (Genus) Batten, 1985 - mollusc
ICZN:Acrostigma (Genus) Emery, 1891 - insect ICBN:Acrostigma (Genus) O.F. Cook & Doyle (1913) - plant
ICZN:Acrostigma (Genus) Forel, 1902 - insect ICBN:Acrostigma (Genus) O.F. Cook & Doyle (1913) - plant
ICBN:Actaea (Genus) L. (1753) - plant ICZN:Actaea (Genus) de Haan, 1833 - crustacean
ICBN:Actidium (Genus) Fr. (1815), nom. sanct. - fungus ICZN:Actidium (Genus) Matthews, 1868 - beetle
ICBN:Actinea (Genus) Juss. (1803) - plant ICZN:Actinea (Genus) Milne-Edwards, 1860 see (Genus) Actinia Linnaeus, 1767 - invertebrate
ICZN:Actinella (Genus) Lowe, 1852 - mollusc ICBN:Actinella (Genus) F.W. Lewis (1864), nom. cons. - alga
ICBN:Actinella (Genus) Juss. ex Nutt. (1818), nom. illeg. - plant ICZN:Actinella (Genus) Lowe, 1852 - mollusc
ICZN:Actinella (Subgenus) Lowe, 1852 - mollusc ICBN:Actinella (Genus) F.W. Lewis (1864), nom. cons. - alga
ICBN:Actinella (Genus) Juss. ex Nutt. (1818), nom. illeg. - plant ICZN:Actinella (Subgenus) Lowe, 1852 - mollusc
ICZN:Actinocyclus (Genus) Ehrenberg, 1831 - mollusc ICBN:Actinocyclus (Genus) Ehrenb. (1837) - alga
ICZN:Actinomma (Genus) Haeckel, 1860 - protist ICBN:Actinomma (Genus) Sacc. (1884) see (Genus) Atichia Flot. (1850) - fungus
ICZN:Actinosphaera (Genus) Hollande & Enjumet, 1960 - protist ICBN:Actinosphaera (Genus) Noel (1965) see (Genus) †Watznaueria P. Reinhardt (1964) - alga
ICBN:Actinotheca (Genus) Cookson & Eisenack (1960) - protist ICZN:Actinotheca (Genus) Xiao & Zhou, 1985 - mollusc
ICZN:Actonia (Genus) Monterosato, 1884 - mollusc ICBN:Actonia (Genus) C.W.Dodge (1935), nom. dub. - fungus
Geology:Adamas Chen & Zhang, 2020 see Nitrum siliceum - geological entity ICZN:Adamas (Genus) Afanasieva, 2000, nom. illeg. see (Genus) †Adamasirad Afanasieva, 2009 - protist
ICBN:Adelonema (Genus) Schott (1860) - plant ICZN:Adelonema (Genus) Mawson, 1978 - nematode
ICBN:Adelonema (Genus) Schott (1860) - plant ICZN:Adelonema (Genus) Holovachov & Sturhan, 2003 - nematode
Botany:Adonis (Genus) J.J. Dillenius, nom. inval. see (Genus) Adonis L. (1753) - plant Astronomy:Adonis (Minor planet) (1936 CA) - astronomical entity
ICBN:Adonis (Genus) L. (1753) - plant Astronomy:Adonis (Minor planet) (1936 CA) - astronomical entity
ICBN:Aegilops (Genus) L. (1753) - plant ICZN:Aegilops (Genus) Hall, 1850 - mollusc
Botany:Aegilops (Genus) Scheuchzer, nom. inval. see (Genus) Aegilops L. (1753) - plant ICZN:Aegilops (Genus) Hall, 1850 - mollusc
ICBN:Aegle (Genus) Corrêa (1800), nom. cons. - plant ICZN:Aegle (Genus) Hübner, 1823, nom. illeg. - moth
ICZN:Aeria (Genus) Hübner, 1816 - butterfly ICBN:Aeria (Genus) O.F. Cook (1901) - plant
Astronomy:Agamemnon (Minor planet) (1919 FD) - astronomical entity ICZN:Agamemnon (Genus) Moxey, 1971 - insect
ICBN:Agardhia (Genus) Gray (1821) see (Genus) Mougeotia C.Agardh (1824), nom. cons. - alga ICZN:Agardhia (Genus) Gude, 1911 - mollusc
ICBN:Agardhiella (Genus) K.J.F.Schmitz (1896) - alga ICZN:Agardhiella (Subgenus) Hesse, 1923 - mollusc
ICZN:Agarista (Genus) Leach, 1814 - moth ICBN:Agarista (Genus) D.Don ex G.Don (1834) - plant
ICZN:Agasthenes (Genus) Förster, 1868 - wasp Astronomy:Agasthenes (Minor planet) (1996 TH52) - astronomical entity
ICZN:Agastrophus (Genus) Attems, 1900 - arthropod Astronomy:Agastrophus (Minor planet) (2008 QQ) - astronomical entity
ICZN:Agatha (Subgenus) Adams, 1860 see (Genus) Agatha Adams, 1860 - mollusc Meteorol.:Agatha (Tropical storm) (22 May 2004 - 24 May 2004) - meteorological entity
ICZN:Agatha (Genus) Adams, 1860 - mollusc Meteorol.:Agatha (Tropical storm) (22 May 2004 - 24 May 2004) - meteorological entity
ICZN:Agathis (Genus) Latreille, 1804 - wasp ICBN:Agathis (Genus) Salisb. (1807), nom. cons. - plant
ICZN:Agenor (Genus) Rafinesque, 1815 - mollusc Astronomy:Agenor (Minor planet) (1971 FH) - astronomical entity
ICZN:Agenor (Genus) Risso, 1826 - crustacean Astronomy:Agenor (Minor planet) (1971 FH) - astronomical entity
ICZN:Agenor (Genus) Dallas, 1851 see (Genus) Neagenor Bergroth, 1891 - bug Astronomy:Agenor (Minor planet) (1971 FH) - astronomical entity
ICZN:Agenor (Genus) Castelnau, 1879 - fish Astronomy:Agenor (Minor planet) (1971 FH) - astronomical entity
ICBN:Aglaia (Genus) Loureiro (1790), nom. cons. - plant ICZN:Aglaia (Genus) Müller, 1894, nom. illeg., nom. dub. - crustacean
ICBN:Agonis (Genus) (DC.) Sweet (1830), nom. cons. - plant ICZN:Agonis (Genus) Felder, 1874 - moth
ICBN:Agonium (Genus) Oerst. (1844), nom. dub. - fungus ICZN:Agonium (Genus) Solier, 1849 - beetle
ICZN:Agrius (Genus) Hübner, [1819] - moth Astronomy:Agrius (Minor planet) (1973 SE1) - astronomical entity
ICBN:Ajax (Genus) Salisb. ex Haw. (1812) - plant ICZN:Ajax (Genus) Lesson, 1837 - bird
ICBN:Ajax (Genus) Salisb. ex Haw. (1812) - plant Astronomy:Ajax (Minor planet) (1936 QW) - astronomical entity
ICZN:Ajax (Genus) Lesson, 1837 - bird Astronomy:Ajax (Minor planet) (1936 QW) - astronomical entity
ICBN:Alaria (Genus) Grev. (1830), nom. cons. - alga ICZN:Alaria (Genus) Morris & Lycett, 1851, nom. illeg. see (Genus) Pterophorus Piette, 1891, nom. illeg. - mollusc
ICBN:Alaria (Genus) Grev. (1830), nom. cons. - alga ICZN:Alaria (Genus) Duncan, 1841, nom. illeg. - insect
ICZN:Alaria (Genus) Schrank, 1788 - flatworm ICBN:Alaria (Genus) Grev. (1830), nom. cons. - alga
ICZN:Alastor (Genus) Perty, 1852, nom. illeg. - protist Astronomy:Alastor (Minor planet) (4322 P-L) - astronomical entity
ICBN:Alatospora (Genus) Ingold (1942) - fungus ICZN:Alatospora (Genus) Shulman, Kovalyova & Dubina, 1979 - invertebrate
ICZN:Albertia (Genus) Dujardin, 1838 - invertebrate ICBN:Albertia (Genus) Vozzhennikova (1967) - protist
ICZN:Alcathous (Genus) Thomson, 1864 - beetle Astronomy:Alcathous (Minor planet) (1979 WM) - astronomical entity
ICZN:Alcides (Genus) Hübner, 1822 - moth Zoology:Alcides (Infraorder) Sharpe, 1891 - bird
ICZN:Aletes (Genus) Carpenter, 1857 - mollusc ICBN:Aletes (Genus) J.M. Coulter & J.N. Rose (1888) - plant
ICZN:Aletta (Genus) Metcalf, 1952 - bug Meteorol.:Aletta (Tropical storm) (14 May 2012 - 19 May 2012) - meteorological entity
ICZN:Alfaria (Genus) Emery, 1896 - insect ICBN:Alfaria (Genus) Crous, Montaño-Mata & García-Jim. (2014) - fungus
ICBN:Alina (Genus) Racib. (1909) - fungus ICZN:Alina (Genus) Griveaud, 1976, nom. illeg. - moth
ICZN:Alinda (Genus) Adams & Adams, 1855 - mollusc Astronomy:Alinda (Minor planet) (1918 DB) - astronomical entity
ICZN:Alinda (Subgenus) Adams & Adams, 1855 - mollusc Astronomy:Alinda (Minor planet) (1918 DB) - astronomical entity
ICZN:Alisea (Genus) Jordan & Gilbert, 1919 - fish ICBN:Alisea (Genus) J. Dupont & E.B.G.Jones (2009) - fungus
ICZN:Alleniella (Genus) Musacchio & Simeoni, 1991 - crustacean ICBN:Alleniella (Genus) S. Olsson, Enroth & D. Quandt (2011) - plant
ICZN:Allonema (Genus) Ulrich & Bassler, 1904 - invertebrate ICBN:Allonema (Genus) Syd. (1934) - fungus
ICBN:Allophyllum (Genus) (Nutt.) A. Grant & V. Grant (1955) - plant ICZN:Allophyllum (Genus) Schouppé, 1957 - invertebrate
ICBN:Allosphaerium (Genus) Link (1826), nom. dub. - fungus ICZN:Allosphaerium (Genus) Kidder & Summers, 1935 - protist
ICBN:Almana (Genus) Rafinesque (1838) - plant ICZN:Almana (Genus) Stål, 1861 - bug
ICZN:Almeria (Genus) Paetel, 1875 see (Genus) Ameria Adams, 1861 - mollusc Astronomy:Almeria (Minor planet) (1992 CH1) - astronomical entity
ICZN:Almeria (Genus) Agenjo, 1949 - moth Astronomy:Almeria (Minor planet) (1992 CH1) - astronomical entity
ICBN:Alophia (Genus) Herbert (1840) - plant ICZN:Alophia (Genus) Ragonot, 1893 - moth
Philosophy:Alpheus (Stream) (Greek Mythology) - geographical region ICZN:Alpheus (Genus) Fabricius, 1798 - crustacean
ICZN:Alveolaria (Genus) Busk, 1859 - invertebrate ICBN:Alveolaria (Genus) Lagerh. (1892) - fungus
ICZN:Alveolaria (Genus) Johnston, 1865 - annelid ICBN:Alveolaria (Genus) Lagerh. (1892) - fungus
ICBN:Alysidium (Genus) Kunze (1817) - fungus ICZN:Alysidium (Genus) Busk, 1852 - invertebrate
ICZN:Amalthea (Genus) Rafinesque, 1815 - bee Astronomy:Amalthea (Moon) Barnard, 1892 - astronomical entity
ICZN:Amalthea (Genus) Schumacher, 1817, nom. illeg. - mollusc Astronomy:Amalthea (Moon) Barnard, 1892 - astronomical entity
ICBN:Amansia (Genus) J.V.F. Lamouroux (1809) - alga ICZN:Amansia (Genus) Oudemans, 1936 see (Genus) Acrotocarus Banks, 1915 - mite
ICZN:Amesia (Genus) Robineau-Desvoidy, 1863, nom. illeg. - fly ICBN:Amesia (Genus) A.Nelson & J.F.Macbr. (1913) - plant
ICZN:Amesia (Genus) Duncan, 1841 - moth ICBN:Amesia (Genus) A.Nelson & J.F.Macbr. (1913) - plant
ICZN:Amesia (Genus) Duncan, 1841 - moth ICBN:Amesia (Genus) X. Wei Wang, Samson & Crous (2016), nom. illeg. - fungus
ICZN:Amesia (Genus) Robineau-Desvoidy, 1863, nom. illeg. - fly ICBN:Amesia (Genus) X. Wei Wang, Samson & Crous (2016), nom. illeg. - fungus
ICZN:Ammophila (Genus) Kirby, 1798 - wasp ICBN:Ammophila (Genus) Host (1809) - plant
ICBN:Amoria (Genus) C.Presl (1831) - plant ICZN:Amoria (Genus) Gray, 1855 - mollusc
ICBN:Amorpha (Genus) L. (1753) - plant ICZN:Amorpha (Genus) Hübner, 1809 - moth
ICBN:Amphicosmia (Genus) Gardner (1842) - plant ICZN:Amphicosmia (Genus) Pilsbry & Vanatta, 1898 - mollusc
ICBN:Amphidoxa (Genus) DC. (1838) - plant ICZN:Amphidoxa (Genus) Albers, 1850 - mollusc
ICZN:Amphimachus (Genus) Stål, 1867 - bug Astronomy:Amphimachus (Minor planet) (1992 HS3) - astronomical entity
ICZN:Amphinema (Genus) Haeckel, 1879 - invertebrate ICBN:Amphinema (Genus) P.Karst. (1892) - fungus
ICNP:Amphithrix (Genus) F.T. Kützing 1843 ex E. Bornet and C. Flahault 1886 see (Genus) Homoeothrix (G. Thuret ex E. Bornet & C. Flahault) O. Kirchner in A. Engl. & K. Prantl 1898 nom. cons. - prokaryote ICZN:Amphithrix (Genus) Ragonot, 1893 - moth
ICZN:Ampullaria (Genus) Lamarck, 1799 - mollusc ICBN:Ampullaria (Genus) A.L.Sm. (1903) - fungus
ICBN:Ampullina (Genus) Quél. (1875) - fungus ICZN:Ampullina (Genus) Guppy, 1895, nom. illeg. - mollusc
ICZN:Ampullina (Genus) Bowdich, 1822 - mollusc ICBN:Ampullina (Genus) Quél. (1875) - fungus
ICZN:Amycus (Genus) C.L. Koch, 1846 - arachnid Astronomy:Amycus (Minor planet) (2002 GB10) - astronomical entity
ICBN:Anabasis (Genus) L. (1753) - plant ICZN:Anabasis (Genus) Heinrich, 1956 - moth
ICBN:Anaua (Genus) Miquel (1861) - plant ICZN:Anaua (Genus) Forster, 1970, nom. illeg. see (Genus) Uzakia Koçak & Kemal, 2008 - arachnid
ICBN:Anaua (Genus) Miquel (1861) - plant Zoology:Anaua (Genus) Stål, 1878 - insect
ICZN:Anchises (Genus) Stål, 1867 - bug Astronomy:Anchises (Minor planet) (1930 UB) - astronomical entity
ICBN:Ancistrodes (Genus) Hampe (1867) - plant ICZN:Ancistrodes (Genus) Turner, 1946, nom. illeg. see (Genus) Ancistromorpha Common, 1994 - moth
ICBN:Ancistrophora (Genus) A.Gray (1859) - plant ICZN:Ancistrophora (Genus) Schiner, 1865 - fly
ICBN:Andersonia (Genus) R.Br. (1810) - plant ICZN:Andersonia (Genus) Boulenger, 1900 - fish
ICZN:Andina (Genus) Röber, 1909 - moth ICBN:Andina (Genus) J.A. Jiménez & M.J. Cano (2012), nom. illeg. - plant
ICZN:Andinia (Genus) Polinski, 1922 - mollusc ICBN:Andinia (Genus) (Luer) Luer (2000) - plant
ICZN:Andinia (Subgenus) Polinski, 1922 - mollusc ICBN:Andinia (Genus) (Luer) Luer (2000) - plant
ICZN:Andreaea (Genus) Schrammen, 1902 - sponge ICBN:Andreaea (Genus) Palm & Jochems (1923), nom. illeg. see (Genus) Andreaeana Palm & Jochems (1924) - fungus
ICBN:Andreaea (Genus) Hedw. (1801) - plant ICZN:Andreaea (Genus) Schrammen, 1902 - sponge
ICBN:Andromeda (Genus) L. (1753) - plant ICZN:Andromeda (Genus) Baumgartner, 1980, nom. illeg. see (Genus) †Palinandromeda Pessagno, Blome & Hull, 1993 - protist
ICBN:Angelina (Genus) Fr. (1849) - fungus ICZN:Angelina (Genus) Salter, 1859 - arthropod
ICBN:Anisochaeta (Genus) DC. (1836) - plant ICZN:Anisochaeta (Genus) Beddard, 1890, nom. dub. - annelid
ICZN:Anisocycla (Genus) Monterosato, 1880 - mollusc ICBN:Anisocycla (Genus) Baill. (1887) - plant
ICBN:Anisocycla (Genus) Baill. (1887) - plant ICZN:Anisocycla (Genus) Cossmann, 1888, nom. illeg. see (Genus) Belonidium Cossmann, 1892 - mollusc
ICBN:Anisophyllum (Genus) Haw. (1812), nom. illeg. - plant ICZN:Anisophyllum (Genus) Milne-Edwards & Haime, 1850 - invertebrate
ICZN:Anisothrix (Genus) Ragonot, 1891 - moth ICBN:Anisothrix (Genus) O.Hoffm. ex Kuntze (1898) - plant
ICZN:Anius (Genus) Pascoe, 1885 - beetle Astronomy:Anius (Minor planet) (1973 SD1) - astronomical entity
ICZN:Anius (Genus) Candèze, 1889 see (Genus) Candanius von Hayek, 1973 - beetle Astronomy:Anius (Minor planet) (1973 SD1) - astronomical entity
ICBN:Annularia (Genus) Raf. (1815), nom. dub. - fungus ICZN:Annularia (Genus) Schumacher, 1817 - mollusc
ICZN:Annularia (Genus) Schumacher, 1817 - mollusc ICBN:Annularia (Genus) Sternb. (1821) - plant
ICZN:Annularia (Genus) Schumacher, 1817 - mollusc ICBN:Annularia (Genus) (Schulzer) Gillet (1876), nom. illeg. see (Genus) Pluteus Fr. (1836) - fungus
ICZN:Anomalina (Genus) d'Orbigny, 1826 - protist ICZN:Anomalina (Subtribe) Streubel, 1839, nom. protect. - beetle
ICZN:Anota (Genus) Hallowell, 1852 - reptile ICBN:Anota (Genus) (Lindl.) Schlechter (1914) - plant
ICZN:Anota (Genus) Gray, 1863 - reptile ICBN:Anota (Genus) (Lindl.) Schlechter (1914) - plant
ICZN:Anotis (Genus) Rafinesque, 1815 - mammal ICBN:Anotis (Genus) DC. (1830) - plant
ICBN:Anotis (Genus) DC. (1830) - plant ICZN:Anotis (Genus) Bavay, 1869, nom. illeg. - reptile
ICZN:Antella (Genus) Schornikov & Michailova, 1990 - crustacean ICBN:Antella (Genus) Miettinen (2016) - fungus
ICZN:Antennella (Genus) Allman, 1877 - invertebrate ICBN:Antennella (Genus) Theiss. & Syd. (1918) see (Genus) Scorias Fr. (1825), nom. sanct. - fungus
ICZN:Antennellopsis (Genus) Jäderholm, 1896 - invertebrate ICBN:Antennellopsis (Genus) J.M. Mend. (1930) see (Genus) Phragmocapnias Theiss. & Syd. (1918) - fungus
ICZN:Antennopsis (Genus) Allman, 1877 - invertebrate ICBN:Antennopsis (Genus) R.Heim (1952) - fungus
ICZN:Antenor (Genus) Ridgway, 1873, nom. illeg. see (Genus) Parabuteo Ridgway, 1874 - bird Astronomy:Antenor (Minor planet) (1977 QH1) - astronomical entity
ICZN:Antenor (Genus) Jones, 1878 - echinoderm Astronomy:Antenor (Minor planet) (1977 QH1) - astronomical entity
ICZN:Antenor (Genus) de Montfort, 1808 see (Genus) Lenticulina Lamarck, 1804 - protist Astronomy:Antenor (Minor planet) (1977 QH1) - astronomical entity
ICZN:Anteros (Genus) Hübner, [1819] - butterfly Astronomy:Anteros (Minor planet) (1973 EC) - astronomical entity
ICZN:Anthelia (Genus) Lamarck, 1816 - invertebrate ICBN:Anthelia (Genus) (Dumort.) Dumort. (1835) - plant
ICBN:Anthocephalus (Genus) A.Rich. (1830) - plant ICZN:Anthocephalus (Genus) Schneider, 1887 see (Genus) Anthorhynchus Labbé, 1899 - protozoan
ICBN:Anthodon (Genus) Ruiz & Pav. (1798) - plant ICZN:Anthodon (Genus) Owen, 1876 - dinosaur
ICBN:Anthropomorphus (Genus) Seger (1745), nom. inval. - fungus ICZN:Anthropomorphus (Genus) Ameghino, 1884 - mammal
ICZN:Anticlea (Genus) Stephens, 1831 - moth ICBN:Anticlea (Genus) Kunth (1843) - plant
ICZN:Antilochus (Genus) Stål, 1863 - bug Astronomy:Antilochus (Minor planet) (1950 SA) - astronomical entity
ICZN:Antinous (Genus) Robson, 1914 - mollusc Astronomy:Antinous (Minor planet) (1948 EA) - astronomical entity
ICBN:Antonella (Genus) J.A. Caro (1981) - plant ICZN:Antonella (Genus) Astafieva-Urbajtis & Ramovs, 1985, nom. illeg. - mollusc
ICBN:Antonella (Genus) J.A. Caro (1981) - plant ICZN:Antonella (Genus) Cooke & Kondo, 1960 - mollusc
ICZN:Anupama (Genus) Jonathan, 1982 - wasp ICBN:Anupama (Genus) K.N.A. Raj, K.P.D. Latha & Manim. (2019) - fungus
ICZN:Aoria (Genus) Jordan, 1919 - fish ICBN:Aoria (Genus) Cif. (1962) - fungus
ICBN:Aotus (Genus) Sm. (1805) - plant ICZN:Aotus (Genus) Illiger, 1811 - mammal
ICBN:Apera (Genus) Adans. (1763) - plant ICZN:Apera (Genus) Heynemann, 1885, nom. illeg. see (Genus) Chlamydephorus Binney, 1879 - mollusc
ICBN:Aphelia (Genus) R.Br. (1810) - plant ICZN:Aphelia (Genus) Hübner, 1825 - moth
ICBN:Aphotistus (Genus) Humb. (1793) see (Genus) Armillaria (Fr.) Staude (1857) - fungus ICZN:Aphotistus (Genus) Kirby, 1837 - beetle
ICBN:Apista (Genus) Blume (1825) - plant ICZN:Apista (Genus) Smith, 1861 see (Genus) Egapista Cockerell, 1904 - insect
ICZN:Aplodon (Genus) Rafinesque, 1819 - mollusc ICBN:Aplodon (Genus) R.Br. (1823) - plant
ICZN:Aplosporidium (Genus) Caullery & Mesnil, 1899 - protozoan ICBN:Aplosporidium (Genus) Speg. (1912) see (Genus) Asteromella Pass. & Thüm. (1880) - fungus
ICBN:Apluda (Genus) L. (1753) - plant ICZN:Apluda (Genus) Wallengren, 1863 - moth
ICZN:Apogonia (Genus) Kirby, 1819 - beetle ICBN:Apogonia (Genus) (Nutt.) E.P.N. Fourn. (1886) - plant
ICBN:Apogonia (Genus) (Nutt.) E.P.N. Fourn. (1886) - plant ICZN:Apogonia (Genus) Cressey & Boyle Cressey, 1990, nom. illeg. see (Genus) Cresseyella Bezdek & Cressey, 2004 - crustacean
Astronomy:Apollo (Planet) see (Planet) Mercurius veter. - astronomical entity Astronomy:Apollo (Minor planet) (1932 HA) - astronomical entity
ICZN:Apostates (Genus) Warren, 1897 - moth ICBN:Apostates (Genus) N.S. Lander (1989) - plant
ICZN:Apsteinia (Genus) Schmeil, 1894 see (Genus) Mesochra Boeck, 1865 - crustacean ICBN:Apsteinia (Genus) T.H. Abé (1981) see (Genus) Diplopsalis Bergh (1882) - protist
ICZN:Apsteinia (Genus) Metcalf, 1919 - invertebrate ICBN:Apsteinia (Genus) T.H. Abé (1981) see (Genus) Diplopsalis Bergh (1882) - protist
ICZN:Aptychus (Genus) von Meyer, 1831 - mollusc ICBN:Aptychus (Genus) (Müller Hal.) Müller Hal. (1896) - plant
ICZN:Arachne (Genus) Savigny, 1826 - arachnid ICBN:Arachne (Genus) (Endl.) A.I. Pojarkova (1940) see (Genus) Leptopus Decaisne (1843) - plant
ICBN:Arachnis (Genus) Blume (1825) - plant ICZN:Arachnis (Genus) Geyer, 1837 - moth
ICBN:Arachnophyllum (Genus) Zanardini (1843) - alga ICZN:Arachnophyllum (Genus) Dana, 1846, nom. nud. - invertebrate
ICBN:Arborella (Genus) Zebrowski (1936) - fungus ICZN:Arborella (Genus) Gatehouse, 1967, nom. illeg. see (Genus) †Rankenella Kruse, 1983 - sponge
ICZN:Arborella (Genus) Osburn, 1914 - invertebrate ICBN:Arborella (Genus) Zebrowski (1936) - fungus
ICZN:Arbuscula (Genus) Parona, 1933, nom. illeg. see (Genus) †Arbusculana Finks & Rigby, 2004 - sponge ICBN:Arbuscula (Genus) Bat. & Peres (1965) see (Genus) Neoarbuscula B.Sutton (1983) - fungus
ICZN:Arbusculites (Genus) Murray, 1831 - animal ICBN:Arbusculites (Genus) Paradkar (1976) - fungus
ICZN:Archaea (Genus) Koch & Berendt, 1854 - arachnid ICNP:Archaea ([unranked]) Woese et al. 1990 see (Domain) Archaea Woese et al. 1990 - prokaryote
ICZN:Archaea (Genus) Koch & Berendt, 1854 - arachnid ICNP:Archaea (Domain) Woese et al. 1990 - prokaryote
ICZN:Archaea (Genus) Koch & Berendt, 1854 - arachnid ICNP:Archaea (Subkingdom) Woese et al. 1990 see (Domain) Archaea Woese et al. 1990 - prokaryote
ICZN:Archaea (Genus) Koch & Berendt, 1854 - arachnid ICNP:Archaea (Superkingdom) Woese et al. 1990 see (Domain) Archaea Woese et al. 1990 - prokaryote
ICZN:Archaea (Genus) Koch & Berendt, 1854 - arachnid ICNP:Archaea (Kingdom) Woese et al. 1990 see (Domain) Archaea Woese et al. 1990 - prokaryote
ICZN:Arcina (Genus) Walker, 1862 - moth Zoology:Arcina (Suborder) Stoliczka, 1871 see (Order) Arcida Gray, 1854 - mollusc
Botany:Arctotis (Genus) nom. inval. see (Genus) Arctotis L. (1753) - plant ICZN:Arctotis (Genus) Bodylevskii, 1960 - mollusc
ICBN:Arctotis (Genus) L. (1753) - plant ICZN:Arctotis (Genus) Bodylevskii, 1960 - mollusc
ICZN:Aretaon (Genus) Rehn & Rehn, 1939 - insect Astronomy:Aretaon (Minor planet) (1997 JB16) - astronomical entity
ICBN:Argania (Genus) Roem. & Schult. (1819), nom. cons. - plant ICZN:Argania (Genus) Druce, 1891 - moth
Chemistry:argon Ramsay, 1894 - chemical element ICZN:Argon (Genus) Evans, 1955 - butterfly
ICZN:Aristaeus (Genus) Agassiz, 1846 - crustacean Astronomy:Aristaeus (Minor planet) (1977 HA) - astronomical entity
ICBN:Aristotelia (Genus) L'Hér. (1785), nom. cons. - plant ICZN:Aristotelia (Genus) Hübner, 1825 - moth
ICZN:Arnaudiella (Genus) Douvillé, 1907 - protist ICBN:Arnaudiella (Genus) Petr. (1927) - fungus
ICBN:Arthuria (Genus) H.S.Jacks. (1931) - fungus ICZN:Arthuria (Genus) Klautau, Azevedo, Cóndor-Luján, Rapp, Collins & Russo, 2013 - sponge
ICBN:Articularia (Genus) Höhn. (1909) - fungus ICZN:Articularia (Genus) Luczkowska, 1974 - protist
ICBN:Artotrogus (Genus) Mont. (1845) see (Genus) Pythium Pringsh. (1858), nom. cons. - protist ICZN:Artotrogus (Genus) Boeck, 1859 - crustacean
ICZN:Asbolus (Genus) Leconte, 1851 - beetle Astronomy:Asbolus (Minor planet) (1995 GO) - astronomical entity
ICZN:Ascidium (Genus) Gronov, 1762 - invertebrate ICBN:Ascidium (Genus) Fée (1824), nom. illeg., nom. rej. - fungus
ICBN:Ascoidea (Genus) Bref. (1891) - fungus ICZN:Ascoidea (Superfamily) Voigts & Oudemans, 1905 - mite
ICZN:Asios (Genus) Liebke, 1933 - beetle Astronomy:Asios (Minor planet) (1993 BZ12) - astronomical entity
ICZN:Aspidella (Genus) Billings, 1872 - mollusc ICBN:Aspidella (Genus) E.-J. Gilbert (1940), nom. illeg. see (Genus) Amanita Pers. (1797), nom. cons. - fungus
ICZN:Asterina (Genus) Nardo, 1834 - echinoderm ICBN:Asterina (Genus) Lév. (1845) - fungus
ICZN:Asterodiscus (Genus) Gray, 1847, nom. illeg. see (Genus) Asterodiscides Clark, 1974 - echinoderm ICBN:Asterodiscus (Genus) Voglmayr, Gardiennet & Jaklitsch (2016) - fungus
ICZN:Asterodiscus (Genus) Schafhäutl, 1863, nom. illeg. see (Genus) †Asterocyclina Gümbel, 1868 - protist ICBN:Asterodiscus (Genus) Voglmayr, Gardiennet & Jaklitsch (2016) - fungus
ICZN:Asterodiscus (Genus) Ehrenberg, 1839 see (Genus) Planorbulina d'Orbigny, 1826 - protist ICBN:Asterodiscus (Genus) Voglmayr, Gardiennet & Jaklitsch (2016) - fungus
ICZN:Asterodon (Genus) Perrier, 1888 - echinoderm ICBN:Asterodon (Genus) Pat. (1894) - fungus
ICZN:Asteroides (Genus) Blainville ex Agassiz, 1844 - invertebrate ICBN:Asteroides (Genus) Puntoni & Leonardi (1935), nom. illeg., nom. dub. - prokaryote
ICBN:Asterophora (Genus) Corda (1840), nom. illeg. see (Genus) Asterophora Ditmar (1809), nom. sanct. - fungus ICZN:Asterophora (Genus) Léger, 1892 - protozoan
ICBN:Asterophora (Genus) Fr. (1849), nom. illeg. see (Genus) Asterophora Ditmar (1809), nom. sanct. - fungus ICZN:Asterophora (Genus) Léger, 1892 - protozoan
ICBN:Asterophora (Genus) Ditmar (1809), nom. sanct. - fungus ICZN:Asterophora (Genus) Léger, 1892 - protozoan
ICBN:Asteropsis (Genus) Lessing (1832) - plant ICZN:Asteropsis (Genus) Mueller & Troschel, 1840 - echinoderm
ICZN:Asteropsis (Genus) Mueller & Troschel, 1840 - echinoderm ICBN:Asteropsis (Genus) Gonz. Frag. (1917) - fungus
ICZN:Asterotheca (Genus) Gilbert, 1915 - fish ICBN:Asterotheca (Genus) I.Hino (1938), nom. illeg. - fungus
ICBN:Asterotheca (Genus) C.Presl (1845) - plant ICZN:Asterotheca (Genus) Gilbert, 1915 - fish
ICZN:Astraeus (Genus) Laporte & Gory, 1837 - beetle ICBN:Astraeus (Genus) Morgan (1889) - fungus
ICBN:Astrococcus (Genus) Bentham (1854) - plant ICZN:Astrococcus (Genus) Greeff, 1873 - protist
ICZN:Astrolepis (Genus) Eichwald, 1840 see (Genus) †Asterolepis Eichwald, 1840 - fish ICBN:Astrolepis (Genus) D.M.Benham & Windham (1992) - plant
ICZN:Astyanax (Genus) Baird & Girard, 1854 - fish Astronomy:Astyanax (Minor planet) (1971 FF) - astronomical entity
ICBN:Ate (Genus) Lindl. (1835) - plant ICZN:Ate (Genus) Godman & Salvin, 1895 see (Genus) Pythonides Hübner, [1819] - butterfly
ICBN:Athalamia (Genus) Falconer (1851) - plant Zoology:Athalamia (Subphylum) Cavalier-Smith, 1993 - protozoan
ICZN:Atira (Genus) Stewart, 1927 - mollusc Astronomy:Atira (Minor planet) (2003 CP20) - astronomical entity
ICZN:Atopodinium (Genus) Kahl, 1932 - protist ICBN:Atopodinium (Genus) Drugg (1978) - protist
ICZN:Atreus (Genus) Grote, 1886, nom. illeg. see (Genus) Atreides Holland, 1903 - moth Astronomy:Atreus (Minor planet) (1973 SU) - astronomical entity
ICZN:Atreus (Genus) Koch, 1837, nom. inval. see (Genus) Opistophthalmus Koch, 1837 - arachnid Astronomy:Atreus (Minor planet) (1973 SU) - astronomical entity
ICZN:Atreus (Subgenus) Gervais, 1843 - arachnid Astronomy:Atreus (Minor planet) (1973 SU) - astronomical entity
ICZN:Atropis (Genus) Glückselig, 1851 - reptile ICBN:Atropis (Genus) (Trinius) Grisebach (1852) see (Genus) Puccinellia Parl. (1848) - plant
ICBN:Atropis (Genus) (Trinius) Grisebach (1852) see (Genus) Puccinellia Parl. (1848) - plant ICZN:Atropis (Genus) Kirschbaum, 1867, nom. illeg. - bug
ICBN:Atropis (Genus) (Trinius) Grisebach (1852) see (Genus) Puccinellia Parl. (1848) - plant ICZN:Atropis (Subgenus) Pease, 1871, nom. illeg. - mollusc
ICBN:Aubertia (Genus) Bory de St.-Vincent (1804) - plant ICZN:Aubertia (Genus) Viktorov, 1968, nom. illeg. see (Genus) Aubertiana Viktorov, 1970 - insect
ICBN:Aubertia (Genus) Bory de St.-Vincent (1804) - plant ICZN:Aubertia (Genus) Oberthür, 1896 - butterfly
ICBN:Aubertia (Genus) Bory de St.-Vincent (1804) - plant ICZN:Aubertia (Genus) Théry, 1922, nom. illeg. - beetle
ICZN:Aulacophyllum (Genus) Milne-Edwards & Haime, 1850 - invertebrate ICBN:Aulacophyllum (Genus) Regel (1876) see (Genus) Zamia L. (1763), nom. cons. - plant
ICBN:Aulica (Genus) Rafinesque (1838) - plant ICZN:Aulica (Subgenus) Gray, 1847 - mollusc
ICBN:Aulica (Genus) Rafinesque (1838) - plant ICZN:Aulica (Genus) Gray, 1847 - mollusc
ICZN:Aurelia (Genus) Lamarck, 1816 - invertebrate ICBN:Aurelia (Genus) Cassini (1817) see (Genus) Donia R.Br. (1813) - plant
ICZN:Aurelia (Genus) Lamarck, 1816 - invertebrate ICBN:Aurelia (Genus) J. Gay (1858) - plant
ICZN:Auricula (Genus) Lamarck, 1799, nom. illeg. - mollusc ICBN:Auricula (Genus) Castrac. (1873) - alga
ICZN:Auricula (Genus) Lamarck, 1799, nom. illeg. - mollusc ICBN:Auricula (Genus) Battarra ex Kuntze (1891), nom. illeg. see (Genus) Auricularia Bull. (1780) - fungus
ICZN:Auricula (Genus) Lamarck, 1799, nom. illeg. - mollusc ICBN:Auricula (Genus) Lloyd (1922) - fungus
Zoology:Auricularia nom. inval. - insect ICBN:Auricularia (Genus) Bull. (1780) - fungus
ICBN:Auricularia (Genus) Bull. (1780) - fungus ICZN:Auricularia (Genus) Fabricius, 1823, nom. illeg. - mollusc
ICBN:Aurinia (Genus) Desv. (1815) - plant ICZN:Aurinia (Genus) Adams & Adams, 1853 see (Subgenus) Aurinia Adams & Adams, 1853 - mollusc
ICZN:Auritella (Genus) Leach, 1818 - crustacean ICBN:Auritella (Genus) Matheny & Bougher (2006) - fungus
ICZN:Australiella (Genus) Collignon, 1948 - mollusc ICBN:Australiella (Genus) Vozzhennikova (1967) see (Genus) †Chatangiella Vozzhennikova (1967) - protist
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Last updated: 1 Feb 2024