Derotremata

‖n. pl. [ NL., fr. Gr. de`ros skin + &unr_;, &unr_;, 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 ]