Viper dogfish Trigonognathus kabeyai Least concern
Where the viper dogfish lives – recorded in 1 country, with quick facts from Wikidata and an introduction from Wikipedia.
Pin and shaded countries are approximate. The pin is a representative wild-collected museum specimen (a central record among 10 open-licence GBIF records – few open-licence observations were available), not an official range. Method · Records on GBIF · See sharks on the world map

| Scientific name | Trigonognathus kabeyai |
|---|---|
| Group | Sharks |
| Status | Least concern (Wikidata, IUCN category label) |
| Found in | 1 country |
| Continents | Asia |
| Class | Cartilaginous fish |
| Order | Squaliformes |
| Family | Etmopteridae |
Where does the viper dogfish live?
Open-licence (CC0 / CC BY) wild records published on GBIF place the viper dogfish in 1 country or territory across Asia.
Countries with at least a handful of records (a minimum share of the species’ records, to leave out vagrants and escapes). Records with coordinates only; captive and fossil records excluded.
Is the viper dogfish endangered?
The viper dogfish’s conservation status recorded in Wikidata is “Least concern” (an IUCN Red List category label). Source: Wikidata.
What kind of animal is the viper dogfish?
The viper dogfish (Trigonognathus kabeyai) is a cartilaginous fish in the order Squaliformes and the family Etmopteridae, genus Trigonognathus. (Taxonomy from Wikidata.)
About the viper dogfish
The viper dogfish or viper shark (Trigonognathus kabeyai) is a rare species of dogfish shark in the family Etmopteridae, and the only extant member of its genus. It has been found in the Pacific Ocean off southern Japan, the Bonin Islands, Pacific Ocean off northern Taitung County and the Northwestern Hawaiian Islands. This species inhabits upper continental slopes and seamounts. It may migrate vertically, shifting between bottom waters 270–360 m (890–1,180 ft) deep during the day and upper waters less than 150 m (490 ft) deep at night. A slender, black shark reaching 54 cm (21 in) in length, the viper dogfish can be recognized by its narrow, triangular jaws and well-spaced, fang-like teeth. It also has two spined dorsal fins, dermal denticles with faceted crowns, and numerous light-emitting photophores concentrated on its ventral surface.
Text in “About” is quoted from the Wikipedia article Viper dogfish (revision 1363927609), licensed under CC BY-SA 4.0. Changes: lead section excerpted verbatim, formatting removed. Quick facts, taxonomy and status: Wikidata Q1424187 (CC0). Countries and pin: GBIF.org occurrence records (CC0 / CC BY 4.0).
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