Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Elopocephalai
Supercohors: Elopocephala
Cohors/Superordo: Elopomorpha
Ordo: Anguilliformes
Subordo: Congroidei
Familia: Ophichthidae
Subfamilia: Ophichthinae
Genus: Apterichtus
Species: A. anguiformis – A. ansp – A. australis – A. caecus – A. dunalailai – A. equatorialis – A. flavicaudus – A. gracilis – A. hatookai – A. jeffwilliamsi – A. kendalli – A. klazingai – A. malabar – A. monodi – A. moseri – A. mysi – A. nariculus – A. orientalis – A. succinus
Name
Apterichtus Duméril, 1805
Type species: Caecilia branderiana Lacepède, 1800 (= Muraena caeca Linnaeus, 1758)
Etymology: a- (= without), and pteron (= fin), referring to absence of fins; ichtus, variant spelling of ichthys (= fish). (From The ETYFish Project).
Synonyms
Branderius Rafinesque, 1815
Caecilia Lacepède, 1800
Ophisuraphis Kaup, 1856
Ophisurapus Kaup, 1856
Typhlotes Fischer, 1813
Verma Jordan & Evermann, 1896
References
Duméril, A.M.C. 1805. Zoologie analytique ou méthode naturelle de classification des animaux, rendue plus facile à l’aide de Tableaux synoptique. Allais, Paris. “1806” xxxii + [i] + 344 pp. DOI: 10.5962/bhl.title.44835 Open access. Reference page.
Hibino, Y., McCosker, J.E. & Kimura, S. 2016. A new species of Apterichtus (Anguilliformes: Ophichthidae) from the Marquesas Islands. Zootaxa 4117(1): 146–150. DOI: 10.11646/zootaxa.4117.1.10. Reference page.
Links
Apterichtus and its species (including synonyms) in Catalog of Fishes, Eschmeyer, W.N., Fricke, R. & van der Laan, R. (eds.) 2022. Catalog of Fishes electronic version.
Apterichtus species list in FishBase,
Froese, R. & Pauly, D. (eds.) 2022. FishBase. World Wide Web electronic publication, www.fishbase.org, version 08/2021.
Apterichtus is a genus of fish in the family Ophichthidae (snake eels). Many of its species are called finless eels.
The name literally means "finless fish" in Greek, from apteron (‘no-fins’ < privative a + pteron) and ichthys (‘fish’).[1]
Species
There are currently 18 recognized species in this genus:
Apterichtus anguiformis (W. K. H. Peters, 1877) (Slender finless eel)
Apterichtus ansp (J. E. Böhlke, 1968) (Academy finless eel)
Apterichtus australis McCosker & J. E. Randall, 2005
Apterichtus caecus (Linnaeus, 1758) (European finless eel)
Apterichtus dunalailai McCosker & Hibino, 2015 [2]
Apterichtus equatorialis (G. S. Myers & Wade, 1941) (Equatorial finless eel)
Apterichtus flavicaudus (Snyder, 1904)
Apterichtus gracilis (Kaup, 1856)
Apterichtus hatookai Hibino, Shibata & Kimura, 2014 (Orange-blotched finless eel) [3]
Apterichtus jeffwilliamsi McCosker & Hibino, 2015 [2]
Apterichtus kendalli (C. H. Gilbert, 1891) (Western Atlantic finless eel)
Apterichtus klazingai (M. C. W. Weber, 1913) (Sharp-snout finless eel)
Apterichtus malabar McCosker & Hibino, 2015 [2]
Apterichtus monodi (C. Roux, 1966)
Apterichtus moseri (D. S. Jordan & Snyder, 1901)
Apterichtus mysi McCosker & Hibino, 2015 [2]
Apterichtus nariculus McCosker & Hibino, 2015 [2]
Apterichtus orientalis Machida & Ohta, 1994
Apterichtus succinus Hibino, McCosker & Kimura, 2016 [4]
References
Eugenia B. Böhlke; et al. (2018). Orders Anguilliformes and Saccopharyngiformes: Part 9. Vol. 1. Yale University Press. p. 318. ISBN 978-1-933789-19-4. "From the Greek apteron (without fins) and ichtus (correctly written ichthys, fish)."
McCosker, J.E. & Hibino, Y. (2015): A review of the finless snake eels of the genus Apterichtus (Anguilliformes: Ophichthidae), with the description of five new species. Zootaxa, 3941 (1): 49–78.
Hibino, Y., Shibata, J.-y. & Kimura, S. (2014): Description of a new snake eel, Apterichtus hatookai sp. nov. (Anguilliformes: Ophichthidae), from the Pacific coast of Japan. Ichthyological Research, 61 (4): 317-321.
Hibino, Y., McCosker, J.E. & Kimura, S. (2016): A new species of Apterichtus (Anguilliformes: Ophichthidae) from the Marquesas Islands. Zootaxa, 4117 (1): 146–150.
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