What is "hemisphaeriodon"

Hemisphaeriodon is a genus of lizards containing only one species, Hemisphaeriodon gerrardii, the pink-tongued skink. The genus Hemisphaeriodon is closely related to the genus Cyclodomorphus, which contains some of the largest members of the skink family (Scincidae). In Australia H. gerrardii is called commonly the pink-tongued lizard. As suggested by these common names, its distinguishing characteristic is a pink tongue as opposed to the blue tongue of the closely related genus Tiliqua.