Oreocryptophis porphyracea (Colubridae) is a docile and shy nocturnal rat snake species found in mid to upper-level elevations of forested hills in Asia, ranging from evergreen tropical to dry seasonal forests depending on the subspecies and locality.
The Taiwanese subspecies Oreocryptophis porphyracea kawakamii inhabits humid forests or farmland where it preys mainly on mice.
It is a medium-sized snake, up to 110 cm length. The upper body and tail are red to rusty or bronze brown, iridescent, darkened by scattered or diffuse fine black pigment. There are two very narrow longitudinal lines of dark brown or black, continuous or discontinuous, extending length of body and to tip of tail, and 11 to 14 transverse bands variable in shape, completeness and coloration.