A new species of the genus Ovophis Burger in Hoge & Romano-Hoge, 1981 (Serpentes, Viperidae) from southern Yunnan, China

A new species of <i>Ovophis</i> is described from Yuanyang Guanyinshan Provincial Nature Reserve in southern Yunnan Province, China. The new species can be distinguished from congeneric species by the following combination of characters: ratio of tail length to total length 0.191-0.206, internasals separated by one or two scales, dorsal scales in 22-21-17 rows, ventrals 146-148, subcaudals 57-64, most subcaudals paired and a few unpaired, third supralabial larger than fourth, white spots on dorsal tail continuous. This study further reveals that the species diversity of <i>Ovophis</i> has been seriously underestimated, and there is still a lot of work to be done on the taxonomy of this genus.