Thwaites's skink

The specific name, thwaitesi, is in honor of English botanist George Henry Kendrick Thwaites.^[2]

C. thwaitesi is the only species in the monotypic genus Chalcidoseps.^{[citation needed]}

A highly fossorial skink, C. theaitesi is known from the Knuckles Mountain Range, between 700–1,000 m (2,300–3,300 ft).^{[citation needed]}

C. thwaitesi has small eyes with scaly lower eyelids. The midbody scales are smooth, in 24-26 rows. The body and tail are elongate, and the tail is as wide as the body. The limbs are short and rudimentary, each bearing four toes, the inner two toes being short. The dorsum is dark brown, with a blackish-brown central region.^{[citation needed]}

In many places, C. thwaitesi lives in sympatry with skinks of the genera Nessia and Lankascincus.^{[citation needed]}

The diet of C. thwaitesi comprises insects.^{[citation needed]}

C. thwaitesi is oviparous.^[1] In April an adult female may lay a clutch of two eggs, each egg measuring 6–11 mm x 18 mm (.33 x .71 inch).^{[citation needed]}