Shortspine Spurdog Shark 
Shortspine Spurdog Shark
Squalus mitsukurii
Family, Genus, Class & Etymology
| Family | Squalidae |
| Description | Dogfish sharks |
| Environment | Marine |
| Etymology | Latin, squaleo, squalidus = with rough skin |
| Genus | 2 |
| No. of Species | 28 |
| Order | Squaliformes |
| Class | Elasmobranchii |
| Reproductive Guild | Bearers |
| Distribution | Atlantic, Indian and Pacific Oceans, boreal to tropical. Both dorsal fins with spines, not grooved; teeth on lower jaw not much larger than those on upper jaw; upper precaudal pit usually present; caudal peduncle with a pair of lateral keels. |