Roughskin spurdog
Species of shark
From Wikipedia, the free encyclopedia
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 | |
|---|---|
| |
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| Off the coast of South Carolina | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Division: | Selachii |
| Order: | Squaliformes |
| Family: | Squalidae |
| Genus: | Cirrhigaleus |
| Species: | C. asper |
| Binomial name | |
| Cirrhigaleus asper (Merrett, 1973) | |
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| Range of the roughskin spurdog (in blue) | |
The roughskin spurdog is ovoviviparous with 21 to 22 young in a litter.
Taxonomy
The roughskin spurdog was first described in 1973 as Squalus 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] Genetic and morphological analyses have confirmed that Cirrhigaleus asper is a distinct species within the genus Cirrhigaleus, separate from C. barbifer and C. australis.[4]