Snake Identifier
Cobras & elapids

Tamaulipan Coral Snake

Micrurus tamaulipensis

A coral snake endemic to the state of Tamaulipas in northeastern Mexico, displaying the classic tricolor warning pattern.

Venomous?
Venomous
Adult length
0.5-0.8 m (1.6-2.6 ft)
Range
Tamaulipas, northeastern Mexico

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Overview

The Tamaulipan coral snake is endemic to the state of Tamaulipas in northeastern Mexico, occupying a relatively narrow geographic range compared to more widespread coral snake species in the region.

It was recognized as a distinct species based on differences in scalation and banding pattern from other regional Micrurus populations, reflecting the fine-scale diversity of coral snakes across Mexico.

How to identify it

  • Red, black, and white/yellow tricolor rings arranged in triads
  • Smooth, glossy scales
  • Small black-capped head, not distinct from neck
  • Round pupils
  • Small to moderate body size, generally under 0.8 m
  • Distinguished from neighboring coral snake species by subtle scale counts and restricted Tamaulipas range

Habitat & range

Found in subtropical thorn forest and tropical deciduous forest habitats within Tamaulipas, northeastern Mexico. Shelters under rocks, in leaf litter, and in loose soil.

Behavior, diet & reproduction

Fossorial and secretive, likely most active during the humid rainy season. Feeds primarily on other snakes and elongate lizards. Reproduces by laying eggs, though detailed reproductive data remains limited.

Frequently asked questions

Where does the Tamaulipan coral snake live?

It is endemic to the state of Tamaulipas in northeastern Mexico.

Is it venomous?

Yes, it carries neurotoxic venom typical of coral snakes but is secretive and rarely encountered.

How was it distinguished from other coral snakes?

Through differences in scalation and banding pattern compared to neighboring Micrurus populations.