Cyclocheilichthys janthochir

Cyclocheilichthys janthochir is a species of freshwater fish in the family Cyprinidae. It is endemic to southwestern Borneo in Kalimantan (Indonesia) where it occurs in highly acidic blackwater streams and pools in peat swamp forests. It feeds on aquatic insects.

Cyclocheilichthys janthochir grows to 20 cm total length.