Squalidae
From Free net encyclopedia
{{Taxobox
| color = pink
| name = Squalidae
| image = Squalus_acanthias.jpg
| image_width = 240px
| image_caption = Spiny dogfish, Squalus acanthias
| regnum = Animalia
| phylum = Chordata
| classis = Chondrichthyes
| ordo = Squaliformes
| familia = Squalidae
| familia_authority = Blainville, 1816
| subdivision_ranks = Genera
| subdivision =
Cirrhigaleus
Squalus
See text for species.
}}
Squalidae is the family of dogfish sharks. 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.
There are eleven species in two genera:
- Genus Cirrhigaleus
- Roughskin spurdog, Cirrhigaleus asper (Merrett, 1973).
- Cirrhigaleus barbifer Tanaka, 1912
- Genus Squalus
- 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).
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