Typhlobarbus nudiventris

Typhlobarbus nudiventris is a vulnerable species of cyprinid fish endemic to Jianshui County in Yunnan, China.[2] Like other cavefish, it lacks pigmentation and its eyes are degenerated. It is the only species in its genus.[3] It reaches up to about 4.6 cm (1.8 in) in standard length.[2][4]