Squalus
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Squalus is a genus of dogfish sharks, one of two genera in the family Squalidae. 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.
There are nine 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).
- Blacktail spurdog, Squalus melanurus (Fourmanoir & Rivaton, 1979).
- Shortspine spurdog, Squalus mitsukurii (Jordan & Snyder, 1903).
- Cyrano spurdog, Squalus rancureli (Fourmanoir & Rivaton, 1979).
References
- [Squalus (TSN 160616)]. Integrated Taxonomic Information System. Accessed on 4 May 2006.
- ["Squalus"]. FishBase. Ed. Ranier Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006.
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