Phylum Chordata Bateson, 1885 - chordates
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
         Order Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
           Suborder Lari Sharpe, 1891 - gulls and allies
             Family Laridae Vigors, 1825 - gulls, terns and skimmers
               Subfamily Larinae Vigors, 1825 - gulls
                 Genus Larus Linnaeus, 1758
                   Larus argentatus Pontoppidan, 1763 - herring gull
                   Larus armenicus Buturlin, 1934 - Armenian gull
                   Larus atlanticus Olrog, 1958 - Olrog's gull
                   Larus atricilla Linnaeus, 1758 - laughing gull
                   Larus audouinii Payraudeau, 1826 - Audouin's gull
                   Larus belcheri Vigors, 1829 - band-tailed gull
                   Larus brunnicephalus Jerdon, 1840 - brown-headed gull
                   Larus bulleri Hutton, 1871 - black-billed gull
                   Larus cachinnans Pallas, 1811 - yellow-legged gull
                   Larus californicus Lawrence, 1854 - California gull
                   Larus canus Linnaeus, 1758 - mew gull
                   Larus cirrocephalus Vieillot, 1818 - grey-headed gull
                   Larus crassirostris Vieillot, 1818 - black-tailed gull
                   Larus delawarensis Ord, 1815 - ring-billed gull
                   Larus dominicanus Lichtenstein, 1823 - kelp gull
                   Larus fuliginosus Gould, 1841 - lava gull
                   Larus fuscus Linnaeus, 1758 - lesser black-backed gull
                   Larus genei Breme, 1839 - slender-billed gull
                   Larus glaucescens Naumann, 1840 - glaucous-winged gull
                   Larus glaucoides Meyer, 1822 - Iceland gull
                   Larus heermanni Cassin, 1852 - Heermann's gull
                   Larus hemprichii Bruch, 1853 - sooty gull
                   Larus hyperboreus Gunnerus, 1767 - glaucous gull
                   Larus ichthyaetus Pallas, 1773 - great black-headed gull
                   Larus leucophthalmus Temminck, 1825 - white-eyed gull
                   Larus livens Dwight, 1919 - yellow-footed gull
                   Larus maculipennis Lichtenstein, 1823 - brown-hooded gull
                   Larus marinus Linnaeus, 1758 - great black-backed gull
                   Larus melanocephalus Temminck, 1820 - Mediterranean gull
                   Larus minutus Pallas, 1776 - little gull
                   Larus modestus Tschudi, 1843 - grey gull
                   Larus novaehollandiae Stephens, 1826 - silver gull
                   Larus occidentalis Audubon, 1839 - western gull
                   Larus philadelphia (Ord, 1815) - Bonaparte's gull
                   Larus pipixcan Wagler, 1831 - Franklin's gull
                   Larus relictus Lönnberg, 1931 - relict gull
                   Larus ridibundus Linnaeus, 1766 - common black-headed gull
                   Larus saundersi (Swinhoe, 1871) - Saunders's gull
                   Larus schistisagus Stejneger, 1884 - slaty-backed gull
                   Larus serranus Tschudi, 1844 - Andean gull
                   Larus thayeri Brooks, 1915 - Thayer's gull
                   Larus vegae Palmén, 1887 see Larus argentatus vegae Palmén, 1887