Triangle Yunnan loach (Yunnanilus triangulus) is a ray-finned fish of the family Nemacheilidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 5.5 cm. With a trophic level of 3.1, it is a low-level carnivore, feeding on invertebrates and small organisms.
Dorsal soft rays (total): 11; Anal soft rays: 7. This species is distinguished by the following set of characters: a unique triangular tubercle on the male caudal peduncle; absence of scales on head and thorax; eye diameter shorter than interorbital width; absence of outer gill raker; absence of processus dentiformis; six branched pelvic-fin rays; eight branched dorsal-fin rays and specific metric characters .: elongated; Cross section: oval.
Behavioural data for Triangle Yunnan loach is currently being reviewed.
Freshwater; demersal. Temperate
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