Shortspine spurdog
Species of shark
From Wikipedia, the free encyclopedia
The shortspine spurdog (Squalus mitsukurii) is a dogfish, a member of the family Squalidae, found on continental shelves off Japan in temperate waters, from the surface to 950 m. Its length is up to 75 cm.[2]
| Shortspine spurdog | |
|---|---|
| |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Division: | Selachii |
| Order: | Squaliformes |
| Family: | Squalidae |
| Genus: | Squalus |
| Species: | S. mitsukurii |
| Binomial name | |
| Squalus mitsukurii D. S. Jordan & Snyder, 1903 | |
 | |
| Range of the shortspine spurdog | |
| Synonyms | |
|
Squalus acutirostris Chu, Meng & Li, 1984 | |
Taxonomy
The shortspine dogfish was once seen as a circumglobal species by many authors, including Compagno (1984) and Last & Stevens (1994).[3][4] However, a series on papers published since 2007 have shown that a number of species synonymized with S. mitsukurii are distinct, and that the Hawaiian population of S. mitsukurii represent a distinct species, the Hawaiian spurdog.[5][6][7]
Head
Jaws
Upper teeth
Lower teeth
