Snake Identifier
Worm Snake (Carphophis amoenus)
Carphophis amoenus 195727434 by Will Kuhn, via Wikimedia Commons, licensed under CC BY 4.0
Colubrids

Worm Snake

Carphophis amoenus

A tiny, glossy, worm-like colubrid of the eastern United States that spends nearly all its life burrowed underground in loose soil and leaf litter.

Venomous?
Non-venomous
Adult length
0.18-0.28 m (7-11 in)
Range
Eastern United States

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Overview

The worm snake is one of North America's smallest and most secretive snakes, named for its uncanny resemblance to an earthworm in both shape and color. It is a fossorial specialist that lives almost entirely beneath the surface.

It is completely harmless to humans, lacking both the size and venom to pose any threat. Most people who encounter one do so accidentally while gardening or turning over logs and rocks.

How to identify it

  • Very small, thin, cylindrical body
  • Smooth, glossy scales giving a shiny, almost polished appearance
  • Uniform brown to dark gray on top with a pink to salmon-colored belly
  • Tiny head barely distinguishable from the neck
  • Small eyes and a pointed snout adapted for burrowing
  • A short, sharply pointed tail tip
  • Adults typically measure 18-28 cm (7-11 in)

Habitat & range

Lives in moist forested areas with loose, well-drained soil, under logs, rocks, and leaf litter. Found throughout much of the eastern United States, from the Northeast and Mid-Atlantic south into parts of the Southeast.

Behavior, diet & reproduction

Almost entirely fossorial, spending the vast majority of its life underground or beneath surface cover, rarely seen in the open. It feeds primarily on earthworms, using its pointed snout to burrow through soil. Reproduction is oviparous, with females laying small clutches of a few eggs in moist underground sites.

Frequently asked questions

Is the worm snake venomous?

No, the worm snake is completely non-venomous and harmless to humans.

How big does the worm snake get?

It is a very small species, with adults typically reaching only 18-28 cm (7-11 in).

What does the worm snake eat?

It feeds almost exclusively on earthworms.

Why is the worm snake rarely seen?

It spends nearly its entire life underground or hidden beneath logs and leaf litter, only rarely surfacing.