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Spiny Dogfish

Squalus acanthias


The spiny dogfish has dorsal spines, no anal fin, and white spot along its back. The caudal fin has asymmetrical lobes, forming a heterocercal tail. The species name acanthias refers to the shark's two spines.


It is found mostly in shallow waters and further offshore in most parts of the world, especially in temperate waters.

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1 Comment

Coley 8 years ago

Small shark

Spotted by

Massachusetts, USA

Spotted on Jul 27, 2012
Submitted on Jul 29, 2012

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