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Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Osteichthyes
Classis: Actinopterygii
Subclassis: Neopterygii
Infraclassis: Teleostei
Superordo: Elopomorpha
Ordo: Anguilliformes
Subordo: Congroidei
Familia: Nettastomatidae
Genera: Facciolella - Hoplunnis - Leptocephalus - Nettastoma - Nettenchelys - Saurenchelys - Venefica


* Froese, R. and D. Pauly. Editors. 2006. FishBase, version (02/2006). [1]

Vernacular names
日本語: クズアナゴ科

The duckbill eels or witch eels are a family, Nettastomatidae, of eels. The name is from Greek netta meaning "duck" and stoma meaning "mouth".

Duckbill eels are found along the continental slopes of tropical and temperate oceans worldwide. They are bottom-dwelling fish, feeding on invertebrates and smaller fish.[1] They are slender eels, up to 125 centimetres (4.10 ft) in length, with narrow heads and large, toothy, mouths. Most species lack pectoral fins.


There are about forty species in seven genera:

* Genus Facciolella
o Facciolella castlei Parin & Karmovskaya, 1985.
o Facciolella equatorialis (Gilbert, 1891).
o Facciolella gilbertii (Garman, 1899).
o Facciolella karreri Klausewitz, 1995.
o Facciola's sorcerer, Facciolella oxyrhyncha (Bellotti, 1883).
o Facciolella saurencheloides (D'Ancona, 1928).
* Genus Hoplunnis
o Blacktail pike-conger, Hoplunnis diomediana Goode & Bean, 1896.
o Freckled pike-conger, Hoplunnis macrura Ginsburg, 1951.
o Hoplunnis megista Smith & Kanazawa, 1989.
o Silver pikeconger, Hoplunnis pacifica Lane & Stewart, 1968.
o Hoplunnis punctata Regan, 1915.
o Hoplunnis schmidti Kaup, 1860.
o Hoplunnis sicarius (Garman, 1899).
o Hoplunnis similis Smith, 1989.
o Spotted pike-conger, Hoplunnis tenuis Ginsburg, 1951.
* Genus Leptocephalus
o Leptocephalus bellottii D'Ancona, 1928.
* Genus Nettastoma
o Nettastoma falcinaris Parin & Karmovskaya, 1985.
o Blackfin sorcerer, Nettastoma melanurum Rafinesque, 1810.
o Duckbilled eel, Nettastoma parviceps Günther, 1877.
o Nettastoma solitarium Castle & Smith, 1981.
o Nettastoma syntresis Smith & Böhlke, 1981.
* Genus Nettenchelys
o Nettenchelys dionisi Brito, 1989.
o Nettenchelys erroriensis Karmovskaya, 1994.
o Nettenchelys exoria Böhlke & Smith, 1981.
o Nettenchelys gephyra Castle & Smith, 1981.
o Nettenchelys inion Smith & Böhlke, 1981.
o Nettenchelys paxtoni Karmovskaya, 1999.
o Pygmy pikeconger, Nettenchelys pygmaea Smith & Böhlke, 1981.
o Nettenchelys taylori Alcock, 1898.
* Genus Saurenchelys
o Slender sorcerer, Saurenchelys cancrivora Peters, 1864.
o Longface eel, Saurenchelys cognita Smith, 1989.
o Saurenchelys fierasfer (Jordan & Snyder, 1901).
o Saurenchelys finitimus (Whitley, 1935).
o Saurenchelys lateromaculatus (D'Ancona, 1928).
o Saurenchelys meteori Klausewitz & Zajonz, 2000.
o Saurenchelys stylura (Lea, 1913).
* Genus Venefica
o Venefica multiporosa Karrer, 1982.
o Venefica ocella Garman, 1899.
o Whipsnout sorcerer, Venefica proboscidea (Vaillant, 1888).
o Venefica procera (Goode & Bean, 1883).
Venefica procera
o Venefica tentaculata Garman, 1899.


1. ^ McCosker, John F. (1998). Paxton, J.R. & Eschmeyer, W.N.. ed. Encyclopedia of Fishes. San Diego: Academic Press. p. 90. ISBN 0-12-547665-5.

* Froese, Rainer, and Daniel Pauly, eds. (2006). "Nettastomatidae" in FishBase. January 2006 version.

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License