''Oxynotus'' is a genus of sharks in the order

Squaliformes The Squaliformes are an order (biology), order of sharks that includes about 126 species in seven families. Members of the order have two dorsal fins, which usually possess spines, they usually have a sharp head, no anal fin or nictitating me ...

, commonly known as the rough sharks. It is the only extant genus in the family Oxynotidae. They live in deep waters in the Atlantic and western Pacific Oceans. Rough sharks are small to medium in size, ranging from in adult body length, depending on species. Their bodies are compressed, giving them a triangular cross-section. They have two large dorsal fins, each with a sharp spine, and with the first fin placed far forward above the head. Even more so than their relatives, the dogfishes, they have rough and prickly skin. Unusually among sharks, they also possess a

luminous Luminous may refer to: * Luminous flame, a flame emitting visible light Music * Luminous (group), a South Korean boy band * ''Luminous'' (EP), an EP by Cesium 137 * ''Luminous'' (John Hicks and Elise Wood album), 1985–88 * Luminous (The Hor ...

organ.

Species

* ''

Oxynotus bruniensis The prickly dogfish (''Oxynotus bruniensis'') is a poorly known species of dogfish shark in the family Oxynotidae, inhabiting temperate Australian and New Zealand waters. Reaching a length of , this brown to gray shark has a very thick body with ...

'' Ogilby, 1893 (prickly dogfish) * ''

Oxynotus caribbaeus The Caribbean roughshark (''Oxynotus caribbaeus'') is a rough shark of the family Oxynotidae, found on the upper continental slopes of the Caribbean Sea, at depths between . It reaches a length around . ''Oxynotus caribbaeus'' is thought to be ...

'' Cervigón, 1961 (Caribbean roughshark) * ''

Oxynotus crochardi ''Oxynotus'' is a genus of sharks in the order Squaliformes, commonly known as the rough sharks. It is the only extant genus in the family Oxynotidae. They live in deep waters in the Atlantic and western Pacific Oceans. Rough sharks are small ...

'' * ''

Oxynotus centrina The angular roughshark (''Oxynotus centrina'') is a rough shark of the family Oxynotidae. Taxonomy Biologist Carl Linnaeus described the angular roughshark, ''O. centrina'', in 1758. This name was later finalized and accepted by the scienti ...

'' Linnaeus,

1758 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', the sta ...

(angular roughshark) * ''

Oxynotus japonicus The Japanese roughshark (''Oxynotus japonicus'') is a rare species of shark in the family Oxynotidae, known only from a handful of specimens recovered from Suruga Bay and the Enshunada Sea off Japan. It is a benthic species that occurs at a dept ...

'' Ka. Yano & Murofushi, 1985 (Japanese roughshark) * ''

Oxynotus paradoxus The sailfin roughshark (''Oxynotus paradoxus'') is a species of dogfish shark in the family Oxynotidae, found in the eastern North Atlantic from Scotland to Senegal between latitudes 61°N and 11°N, at depths of between . Its length is up to . ...

'' Frade, 1929 (sailfin roughshark)

References

{{Taxonbar, from=Q731529 Aquitanian genus first appearances Extant Miocene first appearances Marine fish genera Shark genera Taxa named by Constantine Samuel Rafinesque

Species

See also

References