Neckband Snake
Scaphiodontophis annulatus
A small, slender colubrid known for a banded pattern that abruptly changes partway down the body, and a tail that can detach.
- Venomous?
- Non-venomous
- Adult length
- 0.4-0.7 m (1.3-2.3 ft)
- Range
- Mexico to northern South America
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Overview
The neckband snake is a small, non-venomous colubrid found from Mexico through Central America into northern South America. It is notable for an unusual color pattern in which bold banding on the front half of the body gives way to a plain or differently patterned tail.
It is harmless to humans and known for its ability to shed a fragile tail segment when grabbed, similar to some lizards.
How to identify it
- Bold black and white or black and yellow banding on the front portion of the body
- Tail often plain brown or differently patterned, creating a two-toned appearance
- Slender, small body
- Round pupils
- Distinguished from true coral snakes by the abrupt pattern change and non-triad banding
Habitat & range
Found in humid lowland and premontane forests, leaf litter, and forest edges from Mexico through Central America into northern South America, generally below 1,500 m.
Behavior, diet & reproduction
Diurnal and terrestrial, foraging in leaf litter for small lizards, especially skinks. Notable for a fragile tail capable of breaking off to distract predators. Lays eggs.
Frequently asked questions
Is the neckband snake dangerous?
No, it is non-venomous and harmless to humans.
What is unusual about its tail?
The tail can break off when grabbed, similar to tail autotomy in lizards, helping it escape predators.
What does it eat?
Mainly small lizards, particularly skinks, found in leaf litter.
Why does its pattern change along the body?
The bold banding on the front half abruptly gives way to a differently colored tail, an unusual trait among snakes.
Neckband Snake guides
In-depth guides for identifying and understanding Neckband Snake.
