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Trionychidae

A Dictionary of Zoology | 1999 | Copyright

Trionychidae (soft-shelled turtles; order Chelonia, suborder Cryptodira) A family of highly aquatic turtles that occur in fresh, brackish, and occasionally sea water. The bony shell is regressed, and covered with vascularized, respiratory skin. The head has a proboscis and fleshy lips. The limbs are oar-like. There are 25 species, occurring in N. America, Asia, and Africa.

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MICHAEL ALLABY. "Trionychidae." A Dictionary of Zoology. 1999. Encyclopedia.com. 9 Feb. 2010 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Trionychidae." A Dictionary of Zoology. 1999. Encyclopedia.com. (February 9, 2010). http://www.encyclopedia.com/doc/1O8-Trionychidae.html

MICHAEL ALLABY. "Trionychidae." A Dictionary of Zoology. 1999. Retrieved February 09, 2010 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-Trionychidae.html

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	Trionychidae Book article from: A Dictionary of Zoology Trionychidae ( soft-shelled turtles ; order Chelonia , suborder Cryptodira ) A family of highly aquatic turtles that occur in fresh, brackish...
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