Squalidae Information & Squalidae Links at HealthHaven.com

Squalidae; Fossil range: Upper Cretaceous–Recent PreЄ Є O S D C P T J K Pg N
	Spiny dogfish, Squalus acanthias
Scientific classification
Kingdom:	Animalia;
Phylum:	Chordata;
Class:	Chondrichthyes;
Subclass:	Elasmobranchii;
Order:	Squaliformes;
Family:	Squalidae; Blainville, 1816
Genera
	Cirrhigaleus; Squalus

Sharks portal

Squalidae is the family of dogfish sharks. They are found in the Atlantic, Pacific, and Indian oceans, from tropical equatorial climates to the Arctic and Antarctic.^[2]

Dogfishes are small to medium sharks, ranging from 48 centimetres (19 in) to 1.6 metres (5.2 ft) in adult body length. They have two dorsal fins, each with smooth spines, but have no anal fin. Their skin is generally rough to the touch.^[1]

These sharks are characterized by teeth in upper and lower jaws similar in size; caudal peduncle with lateral keels; upper precaudal pit usually present; and a caudal fin without subterminal notch.

[edit] References

^ ^a ^b "Squalidae". FishBase. Ed. Rainer Froese and Daniel Pauly. January 2009 version. N.p.: FishBase, 2009.
^ Stevens, J. & Last, P.R. (1998). Paxton, J.R. & Eschmeyer, W.N.. ed. Encyclopedia of Fishes. San Diego: Academic Press. p. 64. ISBN 0-12-547665-5.

"Squalidae". FishBase. Ed. Rainer Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006.
Compagno, Dando, & Fowler, Sharks of the World, Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2

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[FB-0] "Squalidae". FishBase. Ed. Rainer Froese and Daniel Pauly. January 2009 version. N.p.: FishBase, 2009.

[EoF-1] Stevens, J. & Last, P.R. (1998). Paxton, J.R. & Eschmeyer, W.N.. ed. Encyclopedia of Fishes. San Diego: Academic Press. p. 64. ISBN 0-12-547665-5.

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