Spurdog
From Wikipedia, the free encyclopedia
- For the US Navy submarine named Squalus, refer to USS Squalus
| Spurdogs Fossil range: Campanian to Present[1] |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Spiny dogfish, Squalus acanthias
|
||||||||||||||
| Scientific classification | ||||||||||||||
|
||||||||||||||
| Species | ||||||||||||||
|
See text. |
Squalus is a genus of dogfish sharks, one of two genera in the family Squalidae. Commonly known as spurdogs, these sharks are characterized by smooth dorsal fin spines, teeth in upper and lower jaws similar in size, caudal peduncle with lateral keels; upper precaudal pit usually present, and caudal fin without subterminal notch.
The name comes from squalus, the Latin for shark; this word is the root for numerous words related to sharks such as squaline, and scientific names for sharks, such as the order Squaliformes.
[edit] Species
- Spiny dogfish, Squalus acanthias (Linnaeus, 1758).
- Squalus acutirostris (Chu, Meng & Li, 1984).
- Longnose spurdog, Squalus blainville (Risso, 1827).
- Cuban dogfish, Squalus cubensis (Howell-Rivero, 1936).
- Japanese spurdog or Japanese roughshark, Squalus japonicus (Ishikawa, 1908).
- Shortnose spurdog, Squalus magalops (Macleay, 1881).
- Blacktailed spurdog, Squalus melanurus (Fourmanoir & Rivaton, 1979).
- Shortspine spurdog, Squalus mitsukurii (Jordan & Snyder, 1903).
- Cyrano spurdog, Squalus rancureli (Fourmanoir & Rivaton, 1979).
- Bartail spurdog, Squalus sp. A
- Eastern highfin spurdog, Squalus sp. B
- Western highfin spurdog, Squalus sp. C
- Fatspine spurdog, Squalus sp. D
- Western longnose spurdog, Squalus sp. E
- Eastern longnose spurdog, Squalus sp. F
[edit] References
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: p.560.
- Squalus (TSN 160616). Integrated Taxonomic Information System. Retrieved on 4 May 2006.
- "Squalus". FishBase. Ed. Ranier Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006.
- Compagno, Dando, & Fowler, Sharks of the World, Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2
