Roughskin spurdog

The roughskin spurdog (Cirrhigaleus asper) is a dogfish of the family Squalidae, found circumglobally between latitudes 35°N and 35°S, at depths of between 200 metres (660 ft) and 600 metres (2,000 ft). It reaches a length of 1.2 metres (3.9 ft).

Roughskin spurdog
Off the coast of South Carolina
Conservation status
Data Deficient  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Squaliformes
Family:	Squalidae
Genus:	Cirrhigaleus
Species:	C. asper
Binomial name
Cirrhigaleus asper (Merrett, 1973)
Range of the roughskin spurdog (in blue)

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The roughskin spurdog is ovoviviparous with 21 to 22 young in a litter.

Taxonomy

The roughskin spurdog was first described in 1973 as Squalas Asper by British ichthyologist Nigel Merrett. It was later quickly changed to Cirrhigaleus asper.^[2] The roughskin spurdog is also known as the roughskin dogfish and roughskin dogshark in English.^[3]

References

1. Finucci, B.; Cheok, J.; Cotton, C.F.; Kulka, D.W.; Neat, F.C.; Rigby, C.L.; Tanaka, S.; Walker, T.I. (2020). "Cirrhigaleus asper". IUCN Red List of Threatened Species. 2020: e.T60209A3092852. doi:10.2305/IUCN.UK.2020-3.RLTS.T60209A3092852.en. Retrieved 18 November 2021.
2. Bester, Cathleen. "Roughskin Dogfish". Florida Museum of Natural History. Retrieved 16 April 2023.
3. "Squalus asper (Merrett, 1973)". Integrated Taxonomic Information System. Retrieved 16 April 2023.

• Froese, Rainer; Pauly, Daniel (eds.). "Cirrhigaleus asper". FishBase. May 2006 version.
• Compagno, Dando, & Fowler, Sharks of the World, Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2