Oreonectes retrodorsalis
Oreonectes retrodorsalis is a species of stone loach. This cavefish is found only in Guangxi in China. Some authorities places this species in the genus "Yunnanilus" rather than "Oreonectes". The specific name is a compound of the Latin words "retro" meaning "back" or "past" and "dorsalis" meaning "the back", referring to the placement of the dorsal fin closer to base of the caudal fin than to the tip of snout. "Oreonectes retrodorsalis" grows to standard length.