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 m and 600 m. It reaches a length of 1.2 m.

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. The roughskin spurdog is also known as the roughskin dogfish and roughskin dogshark in English.