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- Fishbase
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espaņol |
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Overview |
Main identification features
- ds with solid spines
- tail base - keels + notch above
- teeth flat, compressed, oblique tips
- no a
FAMILY SQUALIDAE
Dogfish sharks
Sharks with cylindrical bodies, short snouts; 5 gill slits; moderate to large spiracles just behind eyes; eyes without nictitating membrane; teeth on lower jaw not much larger than those on upper, with strongly oblique tips; no anal fin; 2 dorsal fins with ungrooved spines, origin of the first well before the pelvic fins; tail base with a pair of keels and a pit above; skin with denticles.
This worldwide primarily subtropical to temperate family contains 2 genera and about 10 species.
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References |
- Linnaeus, C., 1758., Systema Naturae, Ed. X. (Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.) Holmiae., Systema Nat. ed. 10, 1:1-824.
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Acknowledgements | |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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Following modified from Fishbase
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Top | See original
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Updated: 2018-04-22 23:51:16 gmt
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