The species is endemic to the Northern Territory in Australia.

[2] The specific name, coggeri, is in honor of Australian herpetologist Harold Cogger.

[3] The preferred natural habitat of C. coggeri is forest.

[1] C. coggeri is heavy-bodied and large for its genus.

The maximum recorded snout-to-vent length (SVL) is 8.0 cm (3.1 in).