Noun
plethodontid (plural plethodontids)
(zoology) Any of the Plethodontidae, a family of lungless salamanders. [from 20th c.]
Caecilians, some plethodontid salamanders and certain frogs lay eggs underground that are unpigmented. Source: Internet
The tail is also used by certain plethodontid salamanders that can jump, to help launch themselves into the air. Source: Internet