How to Identify the Tuxtlan Coral Snake (Identification Guide)

Key identifying features

The Tuxtlan Coral Snake (Micrurus limbatus) is a slender elapid endemic to the Los Tuxtlas region of Veracruz, Mexico, identified by complete tricolor rings running the length of a glossy, cylindrical body. Its limited geographic range combined with typical coral snake banding are the primary tools for identification.

Coloration & pattern

The body pattern features red bands alternating with black bands, each black band bordered by narrow yellow or white rings, forming the classic triad arrangement of true coral snakes. The red bands are generally broad and vivid, while the black bands remain sharply defined, and the narrow pale rings create clear contrast against the black. This pattern remains consistent and complete around the body, including the belly.

Head, eyes & scales

The head is small and rounded, not clearly wider than the neck, consistent with most true coral snakes. The snout is generally black, extending back over the crown before the first pale ring appears. Eyes are small and dark, blending into the black head coloration. Scales are smooth and glossy, giving the snake a sleek, polished appearance.

Size & body shape

This species is moderately slender with a fairly consistent body diameter, tapering to a short tail. Adults typically range from about 40 to 80 centimeters in length. The body shape is elongated and cylindrical, consistent with a secretive, semi-fossorial lifestyle in humid forest habitats.

Range & habitat where you'll see it

The Tuxtlan Coral Snake is restricted to the Los Tuxtlas volcanic region of southern Veracruz, Mexico, an area of humid tropical forest surrounded by more open habitat, making it a geographically isolated population. It favors dense forest floor habitats with abundant leaf litter and moisture, staying hidden much of the time. Due to its very limited range and secretive habits, sightings are uncommon and often occur after rainfall or when ground litter is disturbed.

How to tell it apart from look-alikes

Because of its narrow endemic range, few other true coral snakes overlap directly with this species, but harmless mimics sharing red-black-yellow banding patterns can still occur nearby, so checking whether red bands touch yellow rings directly is a useful diagnostic feature. The small, rounded head without a pronounced triangular shape, along with small, inconspicuous eyes, further helps separate it from mimic species. Its restricted distribution within the Los Tuxtlas region itself is a strong contextual clue supporting identification when combined with typical coral snake pattern traits.