Tropidophis xanthogaster, also known commonly as the Guanahacabibes dwarf boa and the Guanahacabibes trope, is a species of snake in the family Tropidophiidae (dwarf boas). The species is endemic to the Guanahacabibes Peninsula, in the province of Pinar del Río, western Cuba.
The specific name, xanthogaster, from Greek xantho- (yellow) and gaster (venter), refers to the yellow underside of this species.
The preferred natural habitat of T. xanthogaster is forest with shaded rocky areas and caves, at elevations up to .
Dorsally, T. xanthogaster is grayish-brown with eight rows of dark brown spots. Ventrally, it is yellow. It may attain a snout-to-vent length (SVL) of about .[1]
T. xanthogaster is ovoviviparous.[1]