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  • Fishbase

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Squalus acanthias
www.fao.org Copyright Michel Lamboeuf · 0
Squalus acanthias
Squalus acanthias
© Copyright Photographer/SFTEP, 2002 · 0
Squalus acanthias

© Copyright Photographer/SFTEP, 2002 · 0

Main identification features
  • ds with solid spines
  • tail base - keels + notch above
  • teeth flat, compressed, oblique tips
  • no a

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.

  • 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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