The Yunnan closed-shelled turtle (scientific name: Cuora yunnanensis) belongs to the order Turtle turtle, a reptile of the turtle family. The shell is about 140 mm long. The head is medium and the skin on the back of the head is smooth. The palate is not hooked. The dorsal carapace is low, triangular, and has strong ridges. The ventral carapace is large, the anterior margin is rounded, and the posterior margin is concave. The back is browned olive or milky chestnut shell , and the edges and edges are sometimes yellowish-white. The abdomen is brown or light yellow olive, the edges are yellowish white, the scales are dark black or the abdomen is yellowish olive, and there are light reddish-brown stains on each ventral shield.
Chinese scientific name is Yunnan closed-shell turtle
The Latin scientific name is Cuora yunnanensis
Also known as the turtle world, the animal kingdom
Phylum Chordata phylum
Sub-phylum Vertebrate subphylum
Program Reptiles
Turtles and turtles
Suborder Lateral-necked turtle suborder
Family Turtle family
Subfamily Subfamily Turtle subfamily
Genus Closed-shelled turtle genus
Species Yunnan closed-shell turtle
Distribution area Yunnan, China
The English name is Yunnan box turtle
Conservation level CriticalLy Endangered (CR), from the IUCN Red List
Morphological characteristics
The morphology of the Yunnan closed-shell turtle is very similar to that of the three-lined closed-shell turtle, but its neck is not conspicuously olive-green, the dorsal carapace is slightly flattened, the posterior edge of the abdominal carapace has obvious missing, and the most important thing is that the back does not have 3 black longitudinal lines. The adult shell is about 140 mm long. The head is medium and the skin on the back of the head is smooth. The palate is not hooked. The dorsal carapace is low, with three dorsal ridges and strong ridges. The ventral carapace is large, the anterior margin is rounded, and the posterior margin is concave. 2 shields. The dorsal and ventral carapace is connected by ligaments, and there are also ligaments between the thorax and ventral shield, and the anterior lobe of the ventral carapace is movable and cannot be completely closed in the dorsal carapace. The limbs are flattened and the fingers and toes are fully webled. The head is olive in color, with yellow lines on the sides of the head, and yellow symmetrical markings on the pharynx and chin. The back is browned olive or milky chestnut shell , and the edges and edges are sometimes yellowish-white. The abdomen is brown or light yellow olive, the edges are yellowish white, the scales are dark black or the abdomen is yellowish olive, and there are light reddish-brown stains on each ventral shield.
Habits of life
The habitat of the closed-shelled turtle in Yunnan is a plateau mountainous area at an altitude of 2000 m to 2260 m, and feeds on small fish, shrimp and earthworms. Habitat and biological information is unknown.
Population status
The natural number of closed-shell turtles in Yunnan is extremely rare, and only the No. 6 full-mold specimens preserved in the British Museum and the Shanghai Museum of Natural History are known.
Protection level
【List of xx animals under national key protection】 National Level II
Convention on International Trade in Endangered Species of Animals and Flora (CITES) Appendix II.
【Red Book of Endangered Animals of China】 Extinction in the wild
[International Union for Conservation of Nature] (IUCN) extinction
Risk factors
Due to the deterioration of the living environment and human hunting, the number of yunnan closed-shell turtles in xx is rare.
Protection recommendations
Yunnan closed-shell turtle is endemic to China, the number of natural resources has been extremely rare, should make full use of the power of the media at all levels, vigorously publicize the knowledge of protecting the environment and XX animals, enhance the concept of legal system; it is recommended that the Yunnan closed-shell turtle be classified as a national level I key protection of aquatic xx animals, and take effective measures to focus on protection.
Act now, enforce the law strictly, and strictly prohibit the capture and sale of this species. Conduct in-depth investigation of its distribution, habitat and ecological environment, delineate nature reserves, formulate specific protection plans, and strictly prohibit all acts that damage and interfere with the survival of closed-shell turtles in Yunnan.
Carry out detailed and in-depth investigation and persuasion work, and professional scientific research institutions will collect a very small number of Yunnan closed-shell turtles that remain among the masses, carry out scientific domestication and artificial breeding, and maximize the preservation of this endangered natural biological germplasm resource