Uruguayan Coral Snake
Micrurus altirostris
A small coral snake of the temperate grasslands and forests of Uruguay and neighboring regions.
- Venomous?
- Venomous
- Adult length
- 0.4-0.7 m (1.3-2.3 ft)
- Range
- Uruguay, southern Brazil, and northeastern Argentina
Found a snake like this?
Identify any snake from a photo, free.
Overview
The Uruguayan coral snake occupies temperate to subtropical habitats in Uruguay, southern Brazil, and northeastern Argentina, at the southern edge of the genus's distribution. It is relatively small compared to many tropical coral snakes and shows a tricolor or monadal ring pattern depending on population.
Being adapted to cooler climates than most Micrurus species, it is of particular biogeographic interest.
How to identify it
- Black rings separated by red, sometimes with narrow white or yellow borders depending on population
- Black head, occasionally with a pale nuchal band
- Smooth scales and slender cylindrical body
- Small head indistinct from neck; round pupils
- Smaller size and southern range help distinguish it from tropical relatives
Habitat & range
Found in grassland, subtropical forest edge, and scrubland of Uruguay, southern Brazil, and northeastern Argentina, generally in temperate lowland habitats.
Behavior, diet & reproduction
Secretive and fossorial, most active in warmer months. Preys on other snakes and lizards. Reproduces by laying eggs.
Frequently asked questions
Is it venomous?
Yes, it possesses neurotoxic venom like other coral snakes.
Where is it found?
In Uruguay, southern Brazil, and northeastern Argentina.
How does it compare in size to other coral snakes?
It is relatively small, reflecting its more temperate range.
What does it eat?
Mainly other snakes and lizards.
Uruguayan Coral Snake guides
In-depth guides for identifying and understanding Uruguayan Coral Snake.
