- Longnose spurdog
Taxobox
name = Longnose spurdog
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image_caption = Drawing by Dr Tony Ayling
regnum =Animal ia
phylum = Chordata
classis =Chondrichthyes
subclassis =Elasmobranchii
ordo =Squaliformes
familia =Squalidae
genus = "Squalus "
species = "S. blainville"
range_
range_map_width = 200px
range_map_caption = Range of the longnose spurdog (in blue)
binomial = "Squalus blainville"
binomial_authority = (Risso, 1827)The longnose spurdog, "Squalus blainville", is adogfish 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.The longnose spurdog has two
dorsal fin s each of which has oneanterior spine, but noanal fin . The eyes are distinctively large and green. The body is uniformly grey above. Males are identified by their claspers (modifiedpelvic fin s used asintromittent organ s), while females have none.They feed on bony fishes, like porgies,
mackerel andpercichthyid s, as well ascrab s,lobster s, andoctopus es. Their reproduction is ovoviviparous, with three to four young per litter.The longnose spurdog is a foodfish, being utilized fresh, dried and salted, and smoked for human consumption.
References
*
* Tony Ayling & Geoffrey Cox, "Collins Guide to the Sea Fishes of New Zealand", (William Collins Publishers Ltd, Auckland, New Zealand1982 ) ISBN 0-00-216987-8
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