This mainly depends on the region. Each province is different, but the situation of the main distribution of snakes in China is like this.

According to statistics, my country has recorded 204 species and 27 subspecies of snakes, and 58 species and 12 subspecies of venomous snakes, accounting for 10% of the world's snakes and venomous snakes respectively.

The distribution areas of snakes vary according to different species. Judging from the distribution of snakes in my country, the number of Palearctic snake species is relatively small, with only 4 families and 41 to 85 species and 5 subspecies. The vast majority of them, namely: 3 families, 33 genera, 60 species and 4 subspecies, are widely distributed in the Palearctic and Oriental realms, while only 3 families, 14 genera, 25 species and 1 subspecies are only distributed in the Palearctic.

Among these 25 species and 1 subspecies, the pearl snake, the mountain snake, the South Peak snake, the flat-headed chain snake, the black-banded small-headed snake, the hot spring snake, the mountain snake, and the small-headed snake Snakes, Medog Bamboo Leaf Green, Zayu Iron Head, and Tibetan Bamboo Leaf Green are only found in Tibet. Prairie vipers, flower-backed snakes, water snakes, and chess-spotted snakes are only distributed in Xinjiang. Ningshan small-headed snakes are distributed in Shaanxi. Snakes The island viper is only found on Snake Island in Liaoning. Among the remaining 8 species in 3 families, 6 genera and 6 genera, except for the Elephant serpent, the intermediary viper and the rock-dwelling viper, which are distributed in 6 to 9 provinces and autonomous regions in this boundary, the rest are only found in 2 to 4 provinces and autonomous regions in this boundary.

Judging from the situation in various provinces and regions within the Palearctic, the distribution of snakes varies greatly. For example, there are only 4 species in Qinghai Province: the white-striped snake, the tiger-striped snake, the intermediary pit viper and the plateau viper; Ningxia has only 6 species, namely: the Oriental sand boa, the flower-striped snake, the white-striped snake, the tiger-spotted snake, the plateau viper and the intermediary pit viper. venomous snake. Tibet is the province with the most Palearctic snakes, with 36 species and subspecies; Gansu has 35 species; Shaanxi has 31 species; Henan has 18 species; Liaoning has 17 species; the rest of the provinces all have between 10 and 14 species. .

Southern my country belongs to the Oriental Kingdom. There are a large number of snakes here, accounting for about 88% of the total number of snake species in my country. There are 179 species and 26 subspecies in 58 genera and 8 families. Only distributed in this realm are 8 families, 50 genera, 119 species and 22 subspecies, which is 5.4 times the number of snakes only distributed in the Palearctic realm. Among the 141 species and subspecies, 67 species are endemic to only one province (Table 2). Of the remaining 74 species and subspecies, 17 species and subspecies are each distributed in two provinces and autonomous regions, 12 species and subspecies are each distributed in three provinces and autonomous regions, and the remaining 45 species and subspecies are each distributed in more than four provinces. district.

Judging from the situation in various provinces and regions within the Oriental Territory, there are generally many types of snakes. Even Shanghai, which has the smallest number of snake species, has 12 species and subspecies. Yunnan is the province with the most species of snakes in my country, with 100 species of snakes.

Judging from the 3 families, 33 genera, 60 species and 4 subspecies that are widely distributed in the Palearctic and Oriental realms, the red chain snake, the king snake, the white-striped snake, the jade-spotted snake, and the red-spotted snake , Black-browed Elephant Snake, Emerald Green Snake, Tiger-spotted Collar-necked Chain Snake, Chinese Traveling Snake, Black-headed Sword Snake, Black-headed Snake, and Bamboo-leaf Green Snake are all distributed in more than 15 provinces and autonomous regions, among which the Red Chain Snake is distributed in as many as 23 provinces and autonomous regions. . Black-spine snake, blunt-tailed two-headed snake, yellow-spine colubrid, black-backed white krait, thin white krait, rusty chain snake, small-headed snake, mouse snake, white-headed viper, short-tailed viper, cauliflower root Spearhead belly and Huadongshan branding iron head are distributed in 9 to 14 provinces and regions.

Judging from the status of venomous snakes, only one species of the Colubridae species, the flowered snake, is only distributed in Ningxia, Xinjiang and Gansu in the Palearctic. The remaining 5 genera, 11 species and 1 subspecies are all distributed in many provinces and regions in the Orient, except for the thin green snake and the purple sand snake distributed in Tibet. There are 4 species of water snakes, all of which are distributed in some provinces and regions in the Oriental realm. There are 16 species of sea snakes, mainly distributed in the coastal provinces of the Oriental Kingdom. In Liaoning Province, a coastal province in the Palearctic, there are semi-ringed sea snakes, green-ringed sea snakes and sea vipers; in Shandong Province, there are blue-grey sea snakes, green-ringed sea snakes, light gray sea snakes, flat-chinned sea snakes and long-snouted sea snakes.

Both Cobra and Viperidae are highly venomous terrestrial snakes that are seriously harmful to humans, but they also have important economic value. There are 13 genera, 23 species and 3 subspecies of venomous snakes in the family Cobra. In addition to 16 species of sea snakes, in the Palearctic, only Tibet has Oriole snakes, Bengal cobras and king cobras. These 26 species and subspecies are all distributed in the Oriental Kingdom. Among them, the golden krait, the bungar snake, the Fujian red snake, the green snake, the Zhoushan cobra, the Bengal cobra and the king cobra are distributed in 3 to 14 provinces and regions. , is an important economic snake in our country.

There are 23 species and 8 subspecies in 8 genera of Viperidae. Among them, Taiwan Viper, Taiwan Bamboo Leaf Green, and Taiwan Mountain Iron Head are only found in Taiwan; Medog Bamboo Leaf Green, Chayu Iron Head, and Tibetan Bamboo Leaf Green are only found in Tibet. ; The Snow Mountain Plateau Viper is found in Yunnan; the Prairie Viper is found in Xinjiang; the Snake Island Viper is only found in Snake Island, Liaoning; the Far North Viper is distributed in Xinjiang and Jilin; the Mountain Tietou, Yunnan Bamboo Leaf Green and Xiangcheng Bamboo Leaf Green are distributed in Sichuan and Yunnan, and their distribution range is relatively narrow . Ten species and subspecies, including the white-headed viper, the short-tailed viper, the intermediate viper, the rock-dwelling viper, the white-lipped viper, the bamboo-leaf viper, the original spearhead viper, and the sharp-nosed viper are only found in 4 to 14 provinces and regions. Undergraduate students are also an important economic snake in our country.

Judging from the situation in various provinces and autonomous regions across the country, the distribution of venomous snakes varies greatly. Beijing, Henan, Hebei and Tianjin each have only one species of venomous snake; Shanxi, Heilongjiang, Qinghai and Shanghai also have Only 2 species of each are seen. The six provinces of Yunnan, Hainan, Taiwan, Guangxi, Guangdong, and Fujian have many types of venomous snakes, with 22 species and more of venomous snake species. Fujian Province and Taiwan are the two provinces with the most venomous snake species in my country, each with 30 species and more. subspecies. There is currently no statistical data on the distribution of snakes in the Macao Special Administrative Region, but this does not mean that there are no snakes in the Macao Special Administrative Region