First, the pig-nosed turtle
Pig-nosed turtle is a highly aquatic freshwater turtle, which lives in water all the year round except spawning, so its limbs are specialized into flippers like turtles, which is unique among freshwater turtles. The length of the adult tortoise shell is generally 46-5 1cm, and its weight is generally 18-22Kg. So far, the largest tortoise shell found has a length of 56.3cm and a weight of 22.5kg.. Its carapace is round, dark gray, olive gray or brown gray, with a row of white spots near the edge. The edge is slightly serrated, and there is no skirt like turtle because the outer skeleton is well developed and the structure is complete. There is no shield, and instead it is continuous and slightly wrinkled skin. There is a row of spiny ridges in the middle of the dorsal nail. The body's abdominal armor is light, white, milky white or light yellow, slightly cross-shaped. The head is of moderate size and cannot be retracted into the shell. Pig-nosed turtle is one of the most peculiar freshwater turtles with a long and fleshy nose, which looks like a pig's nose, so it has the reputation of "Pig-nosed turtle". There is a gray stripe behind the eyes. Limbs are specialized into fins in order to adapt to aquatic life, and they cannot be shrunk into shells. There are two obvious claw nails near the midpoint of each forelimb, which is also one of its characteristics.
Second, colorful turtles
Seven-colored turtles, also known as Brazilian colored turtles, are nicknamed "red-eared turtles", which originated in the United States and were introduced to China in the early 1980s. Its growth rate is extremely fast, and the monthly weight gain of each turtle can reach125g only in the high temperature season in summer. Its spawning rate is higher than that of ordinary turtles, and its hatching rate and survival rate are also much higher than that of ordinary turtles.
When swimming from the front, seven colors, such as red, yellow, white, brown, green, gray and purple, will appear on the head and back armor, which is called "seven-color turtle". There is a chrysanthemum petal-shaped radiation pattern on the back shell, which looks like a box of blooming chrysanthemums when it is motionless in the water; When swimming fast, the black, white and yellow lines in the skin ripple in the water, just like a zebra galloping in the water, which is pleasing to the eye. It, the green turtle, the money turtle and the four-eyed turtle are among the best ornamental turtles.
Third, Chinese grass turtle
Chinese grass turtle (Chincmysreevesii), also known as tortoise and scarab, belongs to Tortoise, Tortoise; It is one of the famous turtles in China. Chinese grass turtle has fast growth, strong disease resistance, high meat yield, delicious taste and high ornamental value.
The top of the Chinese grass turtle's head is smooth, the back of the head is covered with granular scales, and the horniness of the beak edge is weak. The carapace has three longitudinal edges, and all the toes are webbed. Wild Chinese tortoises live in rivers, lakes, marshes and ponds, dig holes in the loose soil on the sunny and shady shore to lay eggs, and are omnivorous.
Fourth, the money turtle
The head is smooth and scaleless, and the tympanic membrane is obvious and round; The cervical horn plate is long and narrow. The first vertebral horn plate is pentagonal, the fifth is fan-shaped, and the remaining three are triangular, with four on each side of the rib horn plate and one on each side of the marginal horn plate. The carapace is brown, with three obvious black vertical lines, and the middle one is the most obvious and the longest, so it is also called Chuanzi Turtle. The abdominal nail is black, and its marginal horn plate is yellow; The two sides of the carapace and the carapace are connected by ligaments, and the plate (the carapace) is transverse, and the carapace is also connected by transverse ligaments between the chest and abdominal horn plates, so it is also called the broken plate turtle. Webbed between fingers and toes; The tail is short and pointed. The hard skin around the edge of the carapace is golden orange, so it is also called red-edged turtle.
The carapace of the female turtle is wide, the tail is thin and short, the base of the tail is thin, the anus is close to the rear edge of the abdominal shell, and the notch formed by the two anal shields of the abdominal shell is shallow. Usually individuals are bigger than males. The carapace of the male turtle is narrow, the tail is thick and long, the base of the tail is thick, the anus is far from the rear edge of the abdominal shell, and the notch formed by the two anal shields of the abdominal shell is deep.
V. golden-headed box turtle
Golden-headed box turtle, also known as Wanjin Turtle, belongs to Tortoise, Hyriopsis and golden-headed box turtle species. Golden-headed box turtle is one of the best ornamental turtles in China, with noble posture, bright colors, strong adaptability, gorgeous body color and mild personality. However, due to its rare number and narrow distribution, it is extremely difficult to see in the market at present, and there are many seekers, but its wild resources are almost exhausted, and it is in urgent need of protection. Artificial breeding is the only legal and feasible way. It is distributed in Anhui in China and has not been reported abroad. Golden-headed box turtle's head is long, the back of his head is golden yellow, his eyes are big, and his upper jaw is slightly crooked. The carapace is reddish brown with yellowish patches. The abdominal nail is yellow, and there are basically symmetrical black spots on the shield; The dorsal nail and the abdominal nail, the thoracic shield and the abdominal shield are all connected by ligaments. The back of the limbs is grayish brown, the abdomen is golden yellow, and there are webbed fingers and toes. This turtle belongs to aquatic turtle, and its webbed is rich, which can live in deep water.
Golden-headed box turtle's male and female identification: the female turtle's kiss is round and blunt, the center of the abdominal shell is flat, the cloaca hole is close to the edge of the abdominal shell, and there is no connector in the cloaca; The male kiss is sharp, the center of the abdominal nail is slightly concave, the cloaca hole is far from the edge of the abdominal nail, and the cloaca hole has a black connector.
Golden-headed box turtle's living habits: He lives in mountain streams and crevices in hilly areas and feeds on animals such as insects, small fish and shrimps. Love the shadows and be good at climbing.
Six, yellow box turtle
Cistoclemmys flavomarginata is also known as yellow-edged closed shell package, golden head turtle, splint turtle, humpback turtle and so on. Mainly distributed in Anhui, Henan, Jiangsu, Zhejiang, Guangxi, Hubei, Jiangxi, Hunan, Taiwan Province, Fujian and other places. Yellow-edged box turtle is a superior breed of turtles, which is a high-grade nourishing product with high medicinal value and great ornamental value.
The yellow-edged box turtle has a smooth and scaleless head, a flat snout, an obvious hook on the upper beak, a round and clear eardrum, big eyes and a wide golden arc behind the eyes. The carapace is brownish red or brownish brown, with prominent uplift, waxy yellow ridge in the middle, and obvious concentric ring pattern on the back shield. The abdominal nail is flat, round in front and back, and colored as brown or dark brown. The outer edge and the ventral surface of the marginal shield are bright beige. There is a transverse groove in the middle of the abdominal nail to divide the abdominal nail into two halves. After the head, tail and limbs shrink the shell, the two halves of the abdominal nail can be closed on the dorsal nail. The limbs are flat, with scales on them, half webbed between the fingers (toes) and short tail.
Seven, green turtle
Green turtle is a valuable medicinal and ornamental animal, and its name is contained in Compendium of Materia Medica.
The authentic green-hairy turtle system inoculates Cladosporium dorsalis on the body surface of mauremys mutica, flat-breasted turtle, spotted turtle and other turtles, and the length of green hair is more than 4 ~ 5 cm. The "green hair" of the green turtle is the tufted basal algae with green tassels. There are gold threads in the hair, three ribs on the spine, and the bottom armor is ivory. Other turtles have long hair for a long time, but they are big and have no gold thread, and their bottom armor is different in color, yellow and black.
Eight, Brazilian green turtle
Brazilian red-eared turtle has a broad head and a blunt kiss. It has yellow-green longitudinal stripes on its head and neck, and a pair of red stripes behind its eyes. Those are its ears. Its name comes from this. Its carapace is flat, emerald green or apple-colored, and there is a prominent ridge in the center of its back. There are yellow and green annular stripes on the shield. The web is light yellow, with irregular black round, oval and rod-shaped spots that are symmetrical left and right. The limbs are light green with grayish brown longitudinal stripes and webbed between the fingers and toes.
Nine, chick turtle
Flat-breasted turtle, also known as Hawk-billed Dragon-tailed Turtle, scientific name Flat-breasted Turtle with Big Head, commonly known as Hawk-billed Turtle, also known as English Turtle and Dragon-tailed Kirin Turtle, is a peculiar turtle species. Its long tail is like a dragon's tail, with scales, just strong and powerful, its head, eyes and mouth are like parrots, and some people call it parrot turtle, which is cute. The head is large and triangular, and the back of the head is covered with a large horny hard shell. The upper beak is hooked like an eagle's mouth, with big eyes and no eardrum. The carapace is brown, oval and flat in the center, and the front and rear edges are not toothed. The ventral concha is olive, small and flat, and the dorsal ventral concha is connected by ligaments, with a lower corner plate. The limbs are gray, with tile scales, and the hind limbs are long. Besides the outer fingers and toes, there are sharp long claws, and there are half webbed between the fingers and toes, which is not only conducive to crawling on land, but also convenient for swimming in water.
X. Crocodile turtle
Crocodile turtle looks like a crocodile, which is a combination of turtle and crocodile, so it is called crocodile turtle. Its head is thick and can't be completely retracted into the shell, its neck is short and thick, its collar and back are covered with brown spines, its eyes are small, its mouth and jaws are small, its snout is pointed, its tail is pointed and long, with edges on both sides, and its edges are covered with fleshy spines. Two-thirds of the front of its tail has a scaly ridge with a serrated mouth, its back shell is thin, its epithelium is mainly brown and occasionally brown, and its back has three stripes.