Three-line turtle species
Three-line turtle species have recently been distinguished There are two species. The three-line turtle in the narrow sense is only distributed in Fujian, Guangdong (including Hong Kong and Macao), Hainan, and eastern Guangxi in China. The named subspecies of the new species Liyuan three-line turtle is distributed in central and southern Vietnam and eastern Laos. , its Mei family subspecies is scattered in northern Vietnam and western Guangxi, China.
You may wish to judge whether you are raising a three-line turtle or a round turtle based on the following identification characteristics:
1. The third line of Vietnamese population (Cuora cyclornata)
Identification characteristics of the beautiful round shell turtle:
Carapace shape: round or oval
The rear edge of the carapace: not spread or some males meieri are slightly spread
The carapace ridge level (height): short or some males meieri are generally flat High
Carapace color: reddish brown or chestnut brown
Carapace radial pattern: No
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The ratio of carapace length to width: between 1.22-1.32
Can the rear edge of the carapace be serrated? Shape:
Spinal protrusion level: no protrusion or slightly protrusion
Vertebral shield and costal shield Shape: flat, concave or slightly protruding
Whether the stripes of the vertebral shield can extend to the neck: No or not sure
Two typical characteristics of the vertebral shield: balance or length
Inspection of the front line of the carapace: flat and uneven Is there a horizontal black pattern on the rib shield? No Black spots or spots: No
Color of head and back: olive, orange-brown or medium brown
Color of the side of the head and pharynx: orange, white or pink
Whether there are black spots or spots on the ventral surface of the marginal shield: Unsafe
Is there an obvious dark spot between the laryngeal shield and the humeral shield: No possibility
Is there an obvious dark spot between the humeral shield and the thoracic shield? Spots: No or possible
Ratio of backward spread of dark lines on the head side: No spread or less than 5%
Iris color: blue-green or brown-green
The Vietnamese population in the breeding farm is divided into three representative populations:
1. The glans color of Vietnam's three-line shell is blue-gray, the chin and neck are bright red, the lower half of the bottom plate is black or there are pattern rays in the middle, and the word "rice" appears on the upper half. This is what everyone calls " Vietnamese Midi”.
2. The glans of Vietnam's Sanxian Guan shell is blue-grey, the chin and neck are bright red, and the base is completely black.
3. The glans of Vietnam's three-line shell is gray or completely blue, the chin is white, the neck is black or white, and the bottom plate is all black or there are pattern radial lines in the center of the black edge. .
Liyuan turtle
Liyuan turtle
2. Hainan third-line population (< strong>Cuora trifasciata.)
Three-line turtle identification characteristics:
Carapace shape: pear-shaped, oval, oblong shape
Carapace rear edge: spreading outward
Carapace ridge level (height): Moderately high or very high
Carapace color: dark brown or orange-brown, partially dark brown
Carapace radial pattern: obvious or only
Carapace length-to-width ratio: between 1.32-1.52
Whether the rear edge of the carapace is serrated: No
The level of the spine protrusion: protrusion Strong or excessive
Vertebral shield and costal shield morphology: protruding or flat
The stripe energy of the vertebral shield Whether it spreads to the neck: Yes
Two typical characteristics of the vertebral shield: longer than wide
Inspection of the front of the carapace: 3 ribs exceed or slightly exceed
Whether there are horizontal black patterns on the rib shield: yes or not safe
Whether there are black spots or spots behind the marginal shield: Yes
Color of the back of the head: yellow or yellow-white
< p style="text-indent:28px">Color of the side of the head and pharynx: yellow or creamy yellowWhether there are black spots or spots on the ventral surface of the marginal shield: there are triangles Black spots
Is there any obvious dark spots between the laryngeal shield and the humeral shield: Yes
From the humeral shield to the brachial shield Whether there are obvious black spots between the chest shields: not or slightly
The rate of the black lines on the head side spreading backward: 10-80%
The Hainan population in the breeding farm is divided into three major categories:
1. Hainan native yellow-headed three-line shell turtle, with partial body shape There are radiation patterns and the bottom plate is completely black.
2. Hainan's western-line rhubarb-headed three-line shell turtle has a golden head color, partially yellow, small black lines, and orange-red skin.
3. The red cherry gun three-line shell turtle in the west of Hainan has a golden head, a thick black border on the head, a wide head, a large mouth, and a pointed shell with radial lines, and the bottom plate has There are two types: black base or flower base.
There is also a kind of Guangdong three-line three-line turtle in the actual breeding farm, including Fujian species, Guangdong species (two species), Hong Kong species, and Zhuhai species wait. This kind of identification is a bit difficult. The information has been gradually improved since the classification. If I am wrong, please point it out so that I can correct it!
Huaxia Third line
China's third line
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