Scientific name Oxynotus
Higher classification Oxynotidae
|Family OxynotidaeT. N. Gill, 1912|
Lower classifications Angular roughshark, Prickly dogfish, Caribbean roughshark
Angular roughshark oxynotus centrina preying on a ray egg in aquarium
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.
- Angular roughshark oxynotus centrina preying on a ray egg in aquarium
- Oxynotus centrina angular roughshark
Rough sharks are small to medium in size, ranging from 49 to 150 cm (1.61 to 4.92 ft) 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 organ.