Are There Blue Snakes? 13 Blue Snakes in The World (with Pictures)

Blue is not a common color you would find in snakes, which makes them very interesting. They have also caused fascination in the exotic pet world. The majority of snakes are gray, brown, tan, or black, so finding or seeing a blue snake can be exciting.

Are There Blue Snakes?

There are a number of snakes that are blue, some are uniform blue others will have some blue coloration on them. Continue reading below to find out more about the 13 types of blue snakes.

13 Types of Blue Snakes?

The 13 types of blue snakes include:

1. Blue-lipped Sea Krait

Blue-lipped Sea Krait

Scientific name: Laticauda laticaudata.

Common name: blue-lipped sea krait, blue-banded sea krait, common sea krait.

The blue-lipped sea krait or the common sea krait is a venomous sea snake, found in the Indian and Western Pacific Oceans. They have large ventral scales with females growing to 1070mm and males to 910mm in body length.

This striking blue and black banded sea snake can be found in Bangladesh, Sri Lanka, Thailand, New Guinea, Philippines, Fiji, Taiwan, Solomon Islands, and Australia, to name a few.

2. Blue Coral Snake

Calliophis bivirgatus
Blue coral snake. Image by Nksnakes via inaturalist

Scientific name: Calliophis bivirgatus.

Common name: blue coral snake, blue Malayan coral snake.

The blue coral snake belongs to the Elapidae family and is native to southeast Asia. It is a new world coral snake of medium size with a slender body. Adults can grow to 1.8 meters in length.

These snakes have a red tail, belly, and head with a dark blue to black on their backs with two large blue to white stripes on their flanks. These snakes are considered venomous with the occasional human death reported.

Their venom is not a neurotoxin, but rather a cytotoxin, which causes immediate paralysis of the victim, prey, or human.

3. Blue Racer

Blue racer

Scientific name: Coluber constrictor foxii.

Common name: blue racer.

Blue racers are non-venomous snakes that live in open and semi-open habitats, such as old fields and savannahs. They are common throughout North America.

These non-venomous snakes have cream to white colored ventral scales with brilliant blue to gray lateral scales and a brown to dark gray dorsum. They have black masts on their face with large eyes and brown to orange snouts.

This is a large snake that can grow to 152cm from snout to vent.

4. Eastern Indigo Snake

Eastern Indigo Snake

Scientific name: Drymarchon couperi.

Common name: eastern indigo snake, indigo, blue indigo snake, black snake, blue gopher snake, and blue bull snake.

The Eastern indigo snake is a large non-venomous snake that is native to the southeastern United States. These snakes are a uniform blue/black with some having a red to orange or tan-colored throat, chin, and cheeks.

They are smooth scaled snakes with males growing to 2.36 meters and weighing 4.5 kilograms and females growing to 2 meters and weighing 2.7 kilograms. They prefer flat woods, dry glade, cane fields, riparian thickets, well-drained sandy soil, and stream bottoms.

Due to their docile nature and blue coloration, these snakes have become desirable pets in the exotic pet trade. Though in some states in the US you will need a permit in order to keep one as a pet.

5. White-lipped Island Pit viper

Trimeresurus insularis
White-lipped island pit viper. Image by nmoorhatch via inaturalist

Scientific name: Trimeresurus insularis.

Common name: white-lipped island pitviper, Sunda Island pitviper.

White-lipped island pit vipers are venomous snakes found in eastern Java and the Lesser Sunda Islands. It is also known as the Sunda Island pit viper. Their color varies from green to blue/green, with some having yellow coloration.

They are tree dwellers and are often encountered in dry monsoon forests.

6. California red-sided garter snake

Thamnophis sirtalis infernalis
California red-sided garter snake. Image by Andre Giraldi via inaturalist

Scientific name: Thamnophis sirtalis infernalis.

Common name: California red-sided garter snake.

The California red-sided garters name is a slender snake indigenous to North America. The majority of these snakes have a blue stripe on the black and red background, growing to 100cm in total length.

These snakes feature a pattern of three stripes, which include blue and yellow stripes on a red body with black spots on the striped pattern. They can vary slightly in appearance with some having an orange or red head.

The California red-sided garter snake is found primarily in marshes and coastal dunes in California. They are listed as endangered in the US Endangered Species Act.

They are usually near permanent or almost permanent water areas, such as dunes, shallow waters, and marshlands. They sometimes live temporarily in woodlands and grasslands.

7. Eastern Garter Snake

Thamnophis sirtalis sirtalis
Eastern garter snake. Image by Tommy Hamrick via inaturalist

Scientific name: Thamnophis sirtalis sirtalis.

Common name: eastern garter snake.

The Eastern garter snake is a medium-sized North American snake. They grow to 66cm in body length with females being larger than males.

Their coloration can range from blue/green to brown or black with yellow or white stripes. They live in a variety of environments, preferring shrubby fields and grassy areas. They are often encountered in abandoned farmlands, outbuildings, and trash dumps.

8. Malabar Pit Viper

Malabar Pit Viper

Scientific name: Craspedocephalus malabaricus.

Common name: Malabar pit viper, Malabar rock pit viper, rock viper.

The Malabar pit viper or the rock viper is a venomous pit viper endemic to southwestern India. These vipers can grow to 105 cm snout to vent. There are a number of different color morphs from yellow or green to brown or light blue. Some have patterns.

They are slow-moving snakes, but are fast to strike. If bitten, you can experience swelling and moderate pain which will subside within a couple of days.

9. Side-striped Palm Pit Viper

Bothriechis lateralis
Side-striped Palm Pit Viper. Image by Thorsten Usée via inaturalist

Scientific name: Bothriechis lateralis.

Common name: side-striped palm pitviper, side-striped palm viper.

The side-striped palm pit viper is a venomous snake found in the Costa Rica mountains, along with western Panama. They are slender snakes, usually emerald green to a blue/green color, with yellow alternating vertical bars.

The belly is a uniform yellow/green, both sides are bordered with a pale yellow stripe. Their green heads have a blueish stripe, which is not always present. Captive adults tend to turn blue with age with some blue specimens also being identified in the wild.

The side-striped pit viper can be found in the lower Montane forest, the lower Montane wet forest, and the Lower Montane rain forest. If bitten it is considered a serious bite and you should seek immediate medical attention, even though fatalities are rare. There is an anti-venom available.

10. Baron’s Green Racer

Baron’s green racer

Scientific name: Philodryas baroni.

Common name: Baron’s green racer.

The Baron’s green racer is a venomous snake endemic to South America. These snakes can grow to 180cm in length with males being slightly smaller than the female. Their tails account for almost thirty percent of their body length.

They have small, elongated heads with a flexible nasal protuberance, or rostral scale, which is more predominant in males. They can vary in color from green to blue or brown. They can be uniform or they can have black stripes on their backs and sides.

These tree snakes are active during the day and are not usually aggressive if it gets a fright. They may emit a foul-smelling odor. They have rear fangs and are venomous, so they should be treated with caution and are considered dangerous to humans.

11. Guatemalan Palm-Pit Viper

Bothriechis bicolor
Guatemalan palm-pit viper. Image by Greg Lasley via inaturalist

Scientific name: Bothriechis bicolor.

Common name: Guatemalan palm-pit viper, Guatemalan tree viper.

The Guatemalan palm pit viper is a venomous pit viper found in Southern Mexico, Honduras, and Guatemala. Adults can grow up to 100cm with a slender body and color patterns ranging from a green to a blue/green ground color without any patterns.

Mexican specimens may have black dots or flecks or blue patches. The head is a uniform green with the interstitial skin being blue. Some scales may be bordered in blue. These snakes are usually encountered in rain forests.

12. Rock Rattlesnake

Crotalus lepidus
Rock Rattlesnake. Image by Daniel Alexander Carrillo Mtz via inaturalist

Scientific name: Crotalus lepidus.

Common name: rock rattlesnake, green rattlesnake, blue rattlesnake.

The rock rattlesnake belongs to the pit viper family and is a venomous snake in the southwestern United States and North Mexico. These are not large snakes, growing to around 81cm in length.

They have large round heads and heavy bodies, their tails have a rattle, which is made of keratin. Each time their molt, there is a new segment added to their rattle. They vary in color, usually reflecting the color of the rock in the snake’s environment.

Snakes near limestone tend to be light gray to blue in color, while those at higher altitudes have darker coloration. They have clear banding with no mottling or specks.

Their venom is haemotoxin, which has neurotoxic effects. A bite from this pit viper should be considered a medical emergency.

13. Eyelash Viper

Eyelash Viper. Image by miguel_urgiles via inaturalist

Scientific name: Bothriechis schlegelii.

Common name: eyelash viper.

The eyelash viper is a venomous pit viper, which is native to Central and South America. These are small, tree-dwelling snakes, which come in a range of color variations, from green to blue.

These snakes grow to around 82cm in length with the females being longer than the males. They have a triangular-shaped head with needle-like fangs at the front of their jaw. They have heat organs on both sides of the head, right between the nostril and the eye.

The set of scales just above its eyes, look like eyelashes, which is where this viper got its name. These snakes can be found in red, yellow, green, brown, pink, and blue. Some have black or brown specs, others have no pattern.

They prefer humid and tropical areas with plenty of foliage and close to a permanent water source. They are mostly nocturnal, feeding on small birds, lizards, rodents, and frogs. They are aggressive and will strike if harassed.

Are Blue Snakes Venomous?

All blue snakes are venomous, but their venom is not always dangerous to humans. The blue sea snakes and pit vipers are the most venomous of the blue snakes you may encounter and they should be dealt with great caution. A bite from one of the venomous blue snakes requires immediate medical attention.

Summary

While blue is not a common color for snakes, there are some that have blue, either as a base color or they have blue in their pattern. The blue coloration makes these snakes interesting and exciting to exotic pet enthusiasts around the world.

Further Reading: