[1] The specific name, lancelini, refers to Lancelin Island, Western Australia.

[3]: 150 C. lancelini may attain a snout-to-vent length (SVL) of 8 cm (3.1 in).

Dorsally, it is brown on the body, fading to gray on the tail.

The legs are yellow or orange, with dark brown streaks.

[2] The preferred natural habitat of C. lancelini is rocky areas of grassland and shrubland, where it shelters under limestone slabs and in burrows of seabirds.