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Trigonognathus kabeyai  Mochizuki & Ohe, 1990

Viper dogfish
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Image of Trigonognathus kabeyai (Viper dogfish)
Trigonognathus kabeyai
Picture by Ho, H.-C.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Squaliformes (Bramble, sleeper and dogfish sharks) > Etmopteridae (Lantern sharks)
Etymology: Trigonognathus: Greek, trigono = a triangle + Greek, gnathos = jaw (Ref. 45335). Refers to the triangular shape of the jaws (Ref. 31259);  kabeyai: Named after Mr. Hiromichi Kabeya who collected the type specimens (Ref. 31259).

Environment / Climate / Range Ecology

Marine; bathydemersal; depth range 330 - 360 m (Ref. 31259).   Deep-water

Length at first maturity / Size / Weight / Age

Maturity: Lm 52.0  range ? - ? cm
Max length : 47.0 cm TL male/unsexed; (Ref. 55729); 53.9 cm TL (female); max. published weight: 425.60 g (Ref. 55729); max. published weight: 425.60 g

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: Wakayama and Tokushima, Japan (Ref. 31259). Reported from the Hawaiian Islands (Ref. 58302).

Biology     Glossary (e.g. epibenthic)

Specimens collected between 330 and 360 m (Ref. 31259). Ovoviviparous (Ref. 205).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Mochizuki, K. and F. Ohe, 1990. Trigonognathus kabeyai, a new genus and species of the squalid sharks from Japan. Jap. J. Ichthyol. 36(4):385-390. (Ref. 31259)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00150 - 0.00767), b=3.11 (2.91 - 3.31), based on LWR estimates for this (Sub)Family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.5   ±0.4 se; Based on diet studies.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100) .
Price category (Ref. 80766):   Unknown.