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Velvet dogfish
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Squaliformes
Family:	Somniosidae
Genus:	Zameus D. S. Jordan & Fowler, 1903
Species:	Z. squamulosus
Binomial name
Zameus squamulosus (Günther, 1877)
Range of the velvet dogfish
Synonyms
Centrophorus squamulosus Günther, 1877 Scymnodon obscurus Vaillant, 1888 Scymnodon niger Chu & Meng, 1982 Scymnodon squamulosus Günther, 1877

The velvet dogfish (Zameus squamulosus), the only member of the genus Zameus, is a small sleeper shark of the family Somniosidae, found around the world between latitudes 64°N and 48°S, from the surface to 2,000 m.

Description

Its length is up to 84 cm. Although sharks within the family Somniosidae have generally been accepted to be non-luminous, Zameus squamulosus has photophores on its ventral epidermis.

Reproduction

Its reproduction is ovoviviparous.

Conservation

In June 2018 the New Zealand Department of Conservation classified the velvet dogfish as "Data Deficient" with the qualifier "Uncertain whether Secure Overseas" under the New Zealand Threat Classification System.

References

1. Finucci, B.; Cheok, J.; Cotton, C.F.; Kulka, D.W.; Neat, F.C.; Pacoureau, N.; Rigby, C.L.; Tanaka, S.; Walker, T.I. (2020). "Zameus squamulosus". IUCN Red List of Threatened Species. 2020: e.T60215A3093577. doi:10.2305/IUCN.UK.2020-3.RLTS.T60215A3093577.en. Retrieved 18 November 2021.
2. White, W.T., Vaz, D.F.B., Ho, H.-C., Ebert, D.A., Carvalho, M.R.d., Corrigan, S., Rochel, E., Carvalho, M.d., Tanaka, S. & Naylor, G.J.P. (2014): Redescription of Scymnodon ichiharai Yano and Tanaka 1984 (Squaliformes: Somniosidae) from the western North Pacific, with comments on the definition of somniosid genera. Ichthyological Research, 62 (2): 213–229.
3. Straube, N.; Chenhong, L.; Claes, J.M.; Corrigan, S.; Naylor, G.J.P. (2015). "Molecular phylogeny of squaliforms and first occurrence of bioluminescence in sharks". Evolutionary Biology. 15 (1): 162. Bibcode:2015BMCEE..15..162S. doi:10.1186/s12862-015-0446-6. PMC 4537554. PMID 26277575.
4. "Zameus squamulosus summary page". FishBase. Retrieved 2024-11-18.
5. Duffy, Clinton A. J.; Francis, Malcolm; Dunn, M. R.; Finucci, Brit; Ford, Richard; Hitchmough, Rod; Rolfe, Jeremy (2018). Conservation status of New Zealand chondrichthyans (chimaeras, sharks and rays), 2016 (PDF). Wellington, New Zealand: Department of Conservation. p. 11. ISBN 9781988514628. OCLC 1042901090.

• IUCN Red List least concern species
• Somniosidae
• Fauna of the Southeastern United States
• Fish of the East Atlantic
• Fish of the Dominican Republic
• Fish of Uruguay
• Marine fish of Venezuela
• Marine fish of Eastern Australia
• Marine fish of Western Australia
• Marine fish of New Zealand
• Fish described in 1877
• Taxa named by Albert Günther