One of the spines of Chinese sturgeon is the white tendon, all of which are cartilage-like, and the Chinese sturgeon has no spines, all of which are cartilage, except for some hard bones in the head, all of which are soft, including the mouth.

Chinese sturgeon (Acipenser sinensis), an animal belonging to the genus Acipenser, is a critically endangered species listed in IUCN, and distributed in China, Japan, South Korea, Lao People's Democratic Republic, China and North Korea.

The Chinese sturgeon is spindle-shaped, with a long snout, four snouts in front of the mouth, and the mouth is located on the ventral surface. The body is covered with five lines of large and hard bone scales, one on the back and two on the side and the ventral side. The caudal fin is crooked, the lateral fin has a broad base, and the dorsal fin is opposite to the gluteal fin. The ventral fin is located in front of the dorsal fin, and the base of the fin and caudal fin has spiny scales.