trachystomata

Trachystomata

Tra`chy*stom"a*ta\, n. pl. [NL., fr. Gr. ? rough + stoma.] (Zo["o]l.) An order of tailed aquatic amphibians, including Siren and Pseudobranchus. They have anterior legs only, are eel-like in form, and have no teeth except a small patch on the palate. The external gills are persistent through life.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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