Generally, the body length is about 600 millimeters, and the weight is 1000-2000 grams. The largest individual can weigh more than 16 kilograms. The body is elongated, the front of the head is flat, and the snout resembles a duckbill. The mouth is large, and the teeth of the front jaw, mandible, vomer, hip and tongue are sharp. The scales are small. The lateral line is not obvious. The dorsal fin moves back, facing the anal fin. The back of the body is bronze, the abdomen is white, and the sides have black spots.
However, there are often new changes due to different habitats. Distributed in ТугурУда River, Timi River, Polona River, Bell Lake, Ergun River, Shileka River, Onen River, and Ingoda River, as well as Nen River, Heilongjiang River, Songhua River, Ussuri River, Dalai Lake, Jingbo Lake, Wudalianchi, Suifenhe, etc. The model origin of this species is the Onen River and the Ingoda River.
