Chuanchia labiosa

Chuanchia labiosa is a species of cyprinid fish that is only found in the upper reaches of the Yellow River basin in the Qinghai–Tibet Plateau of China, where it mostly inhabits slow-flowing cold waters at altitudes above 3000 m. It is the only member of its genus, but is related to other schizothoracines (snowtrout and allies) like Aspiorhynchus, Diptychus, Gymnodiptychus, Gymnocypris, Oxygymnocypris, Platypharodon, Ptychobarbus, Schizopyge, Schizopygopsis and Schizothorax.

Chuanchia labiosa reaches up to 25 cm in length. Its lower jaw has a horny sheath, which it uses to scrape invertebrates and algae off the bottom. It has seriously declined because of habitat loss, overfishing and introduced species, and is now listed as vulnerable on China's Red List.