Leptospira likes to live in rivers and streams with gravel bottom and fast flowing water, and often shovels moss and algae on stones with the developed cuticle of mandible. Laying eggs in shallow rapids from June to August every year. Mainly distributed in streams in Shanghai, Jiangsu, Anhui, Zhejiang, Fujian, Taiwan Province and other places.
morphological character
Acrossocheilus fasciatus belongs to CYPRINIDAE, CYPRINIDAE, CYPRINIDAE, and the genus Acrossochelus. The body is slender, flat on the side, slightly raised on the back of the head, and the abdomen is round and shallow arc. The head is medium-sized, with a flat side and a slightly pointed front end. The kiss is round and blunt, the kiss fold is short, the upper lip is not covered, and the edge is smooth; Adult snout has granular horny processes. Lower mouth, horseshoe-shaped.
The end of the upper jaw reaches the vertical line of the anterior margin of the eye, and the upper jaw surrounds the lower jaw; The front edge of the mandible is almost straight, with sharp cutin and completely naked. The upper lip is narrower than the lower lip, and the lower lip is divided into the left and right sides, and the spacing is wider, which is about 1/3 of the mouth width. The posterior labial sulcus is short, interrupted in the h, and the spacing is wide.
There are 2 pairs of whiskers, both slender, and the snout is about 1/2 of the jaw, and the jaw is slightly larger than the eye diameter. Eyes are the same size. The outer edge of dorsal fin is nearly flat, and its terminal unbranched fin is a little thick and hard, but its top is soft and its trailing edge has fine serrations.