Velvet dogfish

Velvet dogfish
Conservation status
	; Data Deficient (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Subdivision:	Selachimorpha
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 harmless sleeper shark of the family Somniosidae, found around the world between latitudes 64°N and 48°S, from the surface to 2,000 m. Its length is up to 84 cm.^[2] Although sharks within the family Somniosidae have generally been accepted to be non-luminous, Zameus squamulosus has photophores on its ventral epidermis.^[3]

Reproduction is ovoviviparous.

References

^ Burgess, G.H. & Chin, A. 2006. Zameus squamulosus. The IUCN Red List of Threatened Species 2006: e.T60215A12322535. https://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T60215A12322535.en. Downloaded on 19 October 2017.
^ 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.
^ 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. doi:10.1186/s12862-015-0446-6.{{cite journal}}: CS1 maint: unflagged free DOI (link)

[iucn-1] Burgess, G.H. & Chin, A. 2006. Zameus squamulosus. The IUCN Red List of Threatened Species 2006: e.T60215A12322535. https://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T60215A12322535.en. Downloaded on 19 October 2017.

[White2014-2] 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. doi:10.1186/s12862-015-0446-6.{{cite journal}}: CS1 maint: unflagged free DOI (link)

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