Derotremata \Der`o*tre"ma*ta\, n. pl. [NL., fr. Gr. de`ros skin
+ ?, ?, hole.] (Zool.)
The tribe of aquatic Amphibia which includes Amphiuma,
Menopoma, etc. They have permanent gill openings, but no
external gills; -- called also {Cryptobranchiata}. [Written
also {Derotrema}.]
[1913 Webster]