[2] These kinds of fishes can be found in swift freshwater streams in southern and eastern Asia, including Pakistan across northern India to Malaysia, China, Korea, and Japan.

Liobagrus fishes are distributed in the Yangtze River basin, Taiwan, Japan, and the Korea Peninsula.

The species of the genus Xiurenbagrus are only distributed in the Pearl River basin.

[1] Both Amblyceps and Liobagrus species grow to about 10 centimetres (3.9 in) SL.

Also, Amblyceps has double-folded lips and fin margins pigmented differently from the background colour, while Liobagrus has single-folded lips and fin margins paler than the background colour.