Longnose spurdog: Difference between revisions
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The '''longnose spurdog''', ''Squalus blainville'', is a [[dogfish shark]] of the genus ''[[Squalus]]'', found over [[continental shelf|continental shelves]] in all oceans, at depths of between 15 and 800 metres. They reach one metre in length. |
The '''longnose spurdog''', ''Squalus blainville'', is a [[dogfish shark]] of the genus ''[[Squalus]]'', found over [[continental shelf|continental shelves]] in all oceans, at depths of between 15 and 800 metres. They reach one metre in length. |
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The longnose spurdog has two [[dorsal fin]]s each of which has one [[anterior]] spine, but no [[anal fin]]. The eyes are distinctively large and green. The body is uniformly grey above. Males are identified by their [[valva|claspers]] (modified [[pelvic fin]]s used as [[intromittent organ]]s), while females have none. |
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They feed on bony fishes, like [[porgy|porgies]], [[mackerel]] and [[percichthyid]]s, as well as [[crab]]s, [[lobster]]s, and [[octopus]]es. Their reproduction is [[Ovoviviparity|ovoviviparous]], with three to four young per litter. |
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The longnose spurdog is a foodfish, being utilized fresh, dried and salted, and smoked for human consumption. |
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==References== |
==References== |
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Revision as of 04:20, 10 April 2009
| Longnose spurdog | |
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| Drawing by Dr Tony Ayling | |
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| Species: | S. blainville
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| Binomial name | |
| Squalus blainville (Risso, 1827)
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| Range of the longnose spurdog (in blue) | |
The longnose spurdog, Squalus blainville, is a dogfish shark of the genus Squalus, found over continental shelves in all oceans, at depths of between 15 and 800 metres. They reach one metre in length.
References
- Froese, Rainer; Pauly, Daniel (eds.) (2006). "Squalus blainville" in FishBase. March 2006 version.
- Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8