Snake Identifier

How to Identify the Southern Coral Snake (Identification Guide)

Identify the southern coral snake by its vivid red, black, and yellow body rings and black-tipped snout typical of South American coral snakes.

Read the full Southern Coral Snake encyclopedia entry →
How to Identify the Southern Coral Snake (Identification Guide)
Micrurus frontalis Brazil DF by William Quatman, via Wikimedia Commons, licensed under CC BY-SA 2.0

Key identifying features

The southern coral snake shows the hallmark coral snake pattern of vivid, complete rings in red, black, and yellow encircling a slender body from neck to tail. It has a small, rounded head with a black snout, small eyes, and smooth glossy scales, all consistent with a secretive, largely fossorial lifestyle.

Coloration & pattern

The body is banded in a repeating sequence of red, black, and yellow rings that wrap fully around the snake, including the ventral surface. Black bands are often the narrowest, bordered by thin yellow rings, while red bands tend to be broader and vivid. The overall effect is a bright, high-contrast pattern that stands out clearly against leaf litter and soil.

Head, eyes & scales

The head is small and only slightly wider than the neck, colored black over the snout and crown, which helps camouflage the small, dark eyes. Scales are smooth and glossy, giving the body a polished sheen typical of coral snakes.

Size & body shape

This is a slender, small to medium snake with a cylindrical body and a comparatively short tail. Its build is consistent with a semi-fossorial existence, favoring loose soil and leaf litter over open, exposed terrain.

Range & habitat where you'll see it

Southern coral snakes are found across parts of South America, inhabiting forests, forest edges, and grasslands, often in areas with abundant leaf litter or loose soil suitable for burrowing. They are secretive, spending much of their time hidden underground or beneath surface debris, and are most often seen after rain or at night.

How to tell it apart from look-alikes

As with all true coral snakes, the key identifying trait is that the red, black, and yellow rings completely encircle the body, including the belly, rather than being restricted to the back as in many mimic species. The black snout and small, well-hidden eyes further support identification as a true coral snake rather than a similarly patterned but harmless look-alike.

Frequently asked questions

How do complete body rings help identify the southern coral snake?

The red, black, and yellow bands wrap entirely around the body including the belly, a trait shared by true coral snakes but not by many nonvenomous mimics.

What color is the southern coral snake's head?

The snout and crown are black, helping to camouflage its small, dark eyes.

What habitat does the southern coral snake prefer?

Forests, forest edges, and grasslands with abundant leaf litter or loose soil for burrowing, across parts of South America.

Are the southern coral snake's scales smooth or keeled?

They are smooth and glossy, giving the body a polished appearance.