
Callichthys is a small genus of freshwater catfish in the Callichthyinae subfamily of the armored catfish family, and consists of 4 species from South America. The genus Callichthys is distributed in most freshwater drainages of South America. ==Taxonomy== The type species for this genus is Silurus callichthys. The name Callichthys is derived from...
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http://en.wikipedia.org/wiki/Callichthys

Callichthys is a genus of cat-fish or siluroids, including about a dozen species found in the rivers of tropical America. The body is enclosed in four rows of bony plates, and the head is also armoured. Like their allies in the same region, these cat-fish are capable of migrating over land from one river to another, and construct nests of leaves fo...
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http://www.probertencyclopaedia.com/browse/BC.HTM
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