Non-venomous
Rrainbow Snake

Rainbow snakes belong to the colubrid family and are among the most beautiful and rarest snakes in the United States. Their iridescent scales and colorful appearance earns them their name. Also known as eel moccasin, the snake has a few more common names, including the horned snake, red-lined or red-sided snake, sand snake, sand hog, and striped wampum.

Scientific Classifications

Conservation Status

Not EvaluatedNE

Not Evaluated

Data DeficientDD

Data Deficient

Least ConcernLC

Least Concern

Near ThreatenedNT

Near Threatened

VulnerableVU

Vulnerable

EndangeredEN

Endangered

Critically EndangeredCR

Critically Endangered

Extinct in the wildEW

Extinct in the wild

ExtinctEX

Extinct

Subspecies

  • Common rainbow snake (F. e. erytrogramma)
  • Southern Florida rainbow snake (F. e. Seminola – extinct)

Description

Size

Rainbow Snake Image

Rainbow snakes grow rather long, with the average length being between 3ft and 4 ft (91 and 122 cm). The longest recorded specimens have measured up to 5.5 ft (168 cm). Like all other snakes, males are smaller than females but have thicker and longer tails. 

Color and Appearance

They have one of the most striking colorations among snakes, with a bluish-black glossy, iridescent back having three vivid red stripes running down from head to tail. The sides of the head and body are yellowish, while the underside is reddish or pink, marked with black spots. 

Though they have a short tail, the tip of the tail is pointy and is sometimes used by the snake as a probe. The eyes are small and dark. Juvenile snakes look similar to adults, usually only lacking any yellow.

Are they Dangerous to Humans

These non-venomous snakes are not aggressive and do not bite even when captured.

Rainbow Snakes at a Glance

Distribution

The coastal plains of southern US, from southern Maryland and Louisiana to eastern Louisiana, including eastern Virginia, parts of North and South Carolina, Georgia, Alabama, northern Florida, and Mississippi; not found in the Piedmont and mountain regions.

Habitat

Rainbow Snake Habitat

Aquatic habitats, including backwater creeks, marshes, cypress swamps, sandy coastal plains, and slow streams.


Active only at night, it’s pretty tricky to spot a rainbow snake as they spend most of their time underwater, hiding in vegetation or underwater debris. They are excellent swimmers and can dig burrows in sand and mud.

Lifespan

Not known; but their close relatives, the mud snakes, live for around 19-20 years, so this snake probably has a similar lifespan

Farancia erytrogramma

Predators

Carnivorous mammals like opossums, raccoons, birds of prey like red-tailed hawks, and large snakes such as the eastern indigo snake

When threatened, they coil and uncoil their body, keeping their head low, and raise their tail threateningly. Their tails are not sharp enough to harm the predators, though.

Diet

Primarily consists of freshwater eels but also feeds on small frogs and salamanders; juveniles mainly eat tadpoles and earthworms.

Rainbow Snake Picture

Reproduction

Oviparous (egg-laying)

Females lay eggs in July and leave them buried in sandy soil, where they hatch late in summer or fall. The young snakes remain in the nest till winter is over. An average clutch contains 20 eggs, but larger females may lay around 50 eggs in a clutch.



Not much is known about when they reach sexual maturity.

FAQs

Q.1. Do rainbow snakes make good pets?

As mentioned, these solitary snakes prefer spending their time hidden underwater, so keeping them as a pet would not be a good idea. They are also considered endangered in certain states, so they are illegal to be kept as pets.

Q.2. Why did the southern Florida rainbow snake go extinct?

The population inhabiting Lake Okeechobee in southern Florida was referred to as the southern Florida rainbow snake. They were declared extinct in 2005, primarily due to habitat loss as a result of urbanization, development of dams, drought, and pollution.

Image Source: msherps.com, live.staticflickr.com, herpsofnc.org, floridamuseum.ufl.edu, animalia.bio

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