Culter oxycephaloides belongs to the order Cypriniformes, family Cyprinidae, subfamily Culterae, and genus Culter. Commonly known as: duck bill with red tip, pointed tip with red tip.
The body is long and flat on the sides, and the back of the head is significantly bulged. The head is small and pointed, and the back of the head is flat, shaped like an equilateral triangle. The mouth is in a semi-superior position, the oral cleft slopes upward, the lower jaw is longer than the upper jaw, and the rear end does not reach below the vertical line of the front edge of the eye. It has no beard, large eyes, small scales, and ventral ribs from the pelvic fins and even the anus. The dorsal fin has hard spines; the anal fin is long; the caudal fin is deeply forked. The back of the body is gray, the sides and abdomen are silver-white, the dorsal fin, pectoral fin, pelvic fin and anal fin are all gray-white, and the caudal fin is orange-red with black edges.
Pseudomonas acutis mostly inhabits the middle and upper layers of running water or deeper still water bodies. It feeds mainly on small fish and shrimp, and also eats aquatic insects. The 5-winter-old fish with a body length of 60 cm and a weight of 2 kg has reached primary sexual maturity, and the reproductive season is between May and June.
Pseudomonas acuminata is distributed in the upper and middle reaches of the Yangtze River tributaries and its affiliated water bodies. It is a medium-sized economic fish that is widely distributed in the Yangtze River Basin. It grows quickly. The largest individual can weigh more than 3 kilograms. The meat is tender and delicious, but it is usually found in small quantities in the catch.
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