Commonly known as sawtooth loach, swordfish, pig mother saw, knife loach, nano-cone, stone cone, rough hemp cut, Chili fish, swordfish.

The fish is slender, the upper part is golden yellow, the lower part is dark brown, and there are two rows of oval patches on the abdomen. The anal fin, dorsal fin and caudal fin are connected to the back of the fish.

Most people live at the bottom of the river with stones, or where there are aquatic plants on the shore, and in the cracks of rocks. It is a carnivore, usually active at night, aggressive and feeds on benthic insects and worms. The water system is distributed in the south of the Yangtze River, and Hainan Island and Taiwan Province Province are widely distributed in the south. The meat is tender and delicious.