Pygopidæ.—Slow-Worms.

(With paddle-like extremities near the vent.)

Pygopus.

P. lepidopodus.

This Pygopus has a wide distribution, and is found all over the mainland, but not in Tasmania. It is common near Sydney, and often mistaken for a snake; the tail is very brittle and the tongue flat. Snakes have a forked tongue, and cannot reproduce their tail when lost or injured.

P. squamiceps.

A Pygopus from the west coast. There are several undescribed species in the Museum collection.