The riffle chub (Algansea aphanea) is a species of freshwater fish in the family Cyprinidae that is endemic to the Armería, Ayutla and Tuxpan river basins in Jalisco and Colima of west-central Mexico.[1][2] This threatened species is generally found in small rivers and streams in fast-flowing waters that are 18–22 °C (64–72 °F). It typically is 5–10 cm (2–4 in) long.[2]
The riffle chub (Algansea aphanea) is a species of freshwater fish in the family Cyprinidae that is endemic to the Armería, Ayutla and Tuxpan river basins in Jalisco and Colima of west-central Mexico. This threatened species is generally found in small rivers and streams in fast-flowing waters that are 18–22 °C (64–72 °F). It typically is 5–10 cm (2–4 in) long.