Most Rare and Unique Snake in the world

Red Spitting cobra:
A small cobra reaching a maximum length of around 1.5 meters. The Red Spitting Cobra is active at night, hiding during the day.
This cobra is especially fond of eating frogs and will often venture to human dwellings in search of water and amphibians.
Rainbow boa:
Wild rainbow boas may bite when they feel threatened, as a defense. This bite can be painful, but is not dangerous. Care must still be taken against infection. Like all snakes, when in a shed cycle they will be more unpredictable and irritable due to the added stress of shedding and clouded sight.
Spiny Bush viper:
Spiny bush viper is venomous snake native to Africa. These snakes live in Congo, Uganda and Kenya. There are three subspecies of spiny bush viper that differ in color, size and type of habitat where they can be found. ... For the same reason, exact number of remaining spiny bush vipers.
Paradise Flying snake:
Paradise tree snake or Paradise flying snake, Chrysopelea paradisi, is a species of snake found in southeastern Asia. It can, like all species of its genus Chrysopelea, glide by stretching the body into a flattened strip using its ribs.
California Red Sided Garter:
The California red-sided garter snake is a subspecies of the common garter snake. This slender species of natricine snake is indigenous to North America and is one of three recognized subspecies of Thamnophis sirtalis found in California.