Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade dorsates Cavalier-Smith, 2021
Clade podiates Cavalier-Smith, 2012
[crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
[crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
[crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
Kingdom Animalia Linnaeus, 1758 - animals
Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
Subkingdom Bilateria Hatschek, 1888 - bilaterians
Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
Infrakingdom Deuterostomia Grobben, 1908
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Myopterygii - myopterygians
Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
Grade Teleostomi Bonaparte, 1836
Euteleostomi - bony vertebrates
Class Actinopterygii Woodward, 1891 - ray-finned fishes
[crown] Actinopteri Cope, 1871
Subclass Neopterygii Regan, 1923
Infraclass Teleostei Müller, 1845
Supercohort Teleocephala de Pinna, 1996
Cohort Elopomorpha Greenwood et al., 1966
Order Anguilliformes Rafinesque, 1810 - eels
Suborder Congroidei (Regan, 1909)
Family Ophichthidae Günther, 1870 - snake eels and worm eels
Subfamily Ophichthinaeᵀ
01 Genus Allips McCosker, 1972 [monotypic]
02 Genus Aplatophis Böhlke, 1956
03 Genus Aprognathodon Böhlke, 1967 [monotypic]
04 Genus Apterichtus Duméril, 1806
05 Genus Bascanichthys Jordan & Davis, 1892
06 Genus Brachysomophis Kaup, 1856
07 Genus Caecula Vahl, 1794 [monotypic]
08 Genus Callechelys Kaup, 1856
09 Genus Caralophia Böhlke, 1955 [monotypic]
10 Genus Cirrhimuraena Kaup, 1856
11 Genus Cirricaecula Schultz, in Schultz et al., 1953
12 Genus Dalophis Rafinesque, 1810
13 Genus Echelus Rafinesque, 1810
14 Genus Echiophis Kaup, 1856
15 Genus Elapsopis Kaup, 1856
16 Genus Ethadophis Rosenblatt & McCosker, 1970
17 Genus Evips McCosker, 1972 [monotypic]
18 Genus Gordiichthys Jordan & Davis, 1891
19 Genus Hemerorhinus Weber & de Beaufort, 1916
20 Genus Herpetoichthys Kaup, 1856 [monotypic]
21 Genus Hyphalophis McCosker & Böhlke, 1982 [monotypic]
22 Genus Ichthyapus Brisout de Barneville, 1847
23 Genus Kertomichthys McCosker & Bohlke, 1982 [monotypic]
24 Genus Lamnostoma Kaup, 1856
25 Genus Leiuranus Bleeker, 1853 [monotypic]
26 Genus Leptenchelys Myers & Wade, 1941 [monotypic]
27 Genus Letharchus Goode & Bean, 1882
28 Genus Lethogoleos McCosker & Böhlke, 1982 [monotypic]
29 Genus Leuropharus Rosenblatt & McCosker, 1970 [monotypic]
30 Genus Luthulenchelys McCosker, 2007 [monotypic]
31 Genus Malvoliophis Whitley, 1934 [monotypic]
32 Genus Myrichthys Girard, 1859
33 Genus Mystriophis Kaup, 1856
34 Genus Ophichthusᵀ Ahl, 1789
35 Genus Ophisurus Lacepède, 1800
36 Genus Paraletharchus McCosker, 1974
37 Genus Phaenomonas Myers & Wade, 1941
38 Genus Phyllophichthus Gosline, 1951
39 Genus Pisodonophis Kaup, 1856
40 Genus Quassiremus Jordan & Davis, 1891
41 Genus Rhinophichthus McCosker, 1999 [monotypic]
42 Genus Scytalichthys Jordan & Davis, 1892 [monotypic]
43 Genus Stictorhinus Böhlke & McCosker, 1975 [monotypic]
44 Genus Xestochilus McCosker, 1998 [monotypic]
45 Genus Xyrias Jordan & Snyder, 1901
46 Genus Yirrkala Whitley, 1940