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Squamata · ElapidaeEntry 13,176 of 21,572
Southern Coral Snake, Micrurus frontalis

Reptilia · Squamata

Micrurus frontalisDuméril, Bibron, Duméril, 1854

Southern Coral Snake

Photograph by William Quatman, CC BY-SA, via Wikimedia Commons

An active by day or night, meat-eating snake from the Neotropic region, reaching 179 cm nose to tail.

Also called Short-tailed coral snake.

ReptiliaSquamataElapidaeMicrurus

Grows to
1794mm
greatest recorded
Eats
Carnivorous
Active
Cathemeral
Lives
Fossorial, terrestrial
Body length across Elapidae

Longer than 87% of all elapid snakes anyone has measured.

87% of 383 species are smaller13% larger
219 mmthe whole family, smallest to largest5,710 mm

The bar is the rank itself: its length is the share of the family this animal exceeds. The chart below is the family’s real spread, on a logarithmic scale because body length here runs from 219 to 5,710 mm. The solid rule is this animal. Every bar is a count of real species, and nothing on this figure is estimated.

What is known

32 sourced facts, each taken from a named scientific dataset. How to read these.

Cited from a dataset unless a row is marked otherwise.

Standing in the world

Still living
Extant
Conservation status
Least Concern
Status assessed · the year the Red List last looked
2014

The animal itself

Limbs
None
Venomous
Yes
Fangs
At the front of the mouth

Size

Length snout to vent · greatest recorded
1728mm5 ft 8 in

Di-Bernardo et al. 2007, da Silva and Sites 1999, "500–1,425 mm" (Fiorillo et al. 2021), Bosque et al. 2022 (total length 22.12 -132.26 cm), Cabral et al. 2022 (max 1794 mm TL, 1728 mm SVL), Williams and Vera 2023 (max 83 cm in Argentina, 164 cm in Brazil)

Length nose to tail · greatest recorded
1794mm5 ft 11 in

snakes only in this source

Hatchling length · nose to tail
221.2mm8.75 in
Body mass · greatestcomputed
1121.2g2.5 lb

computed from length by a family-level allometric equation, not weighed

How it lives

Diet
Carnivorous

amphibians, lizards and snakes (Fiorillo et al. 2021), mostly snakes, also amphisbaenians (Williams and Vera 2023)

How it hunts
Active foraging

Active (Feldman 2015)

Active
Cathemeral

(Feldman 2015, Fiorillo et al. 2021), probably crepuscular and nocturnal (Williams and Vera 2023)

Where it lives
Fossorial, terrestrial

Fossorial (Feldman 2015), fossorial & terrestrial (Fiorillo et al. 2021), mostly fossorial (Williams and Vera 2023)

Habitat
Forest
Biome
Tropical & Subtropical Grasslands, Savannas & Shrublands
Region
Neotropic
Mainland or island
Mainland
Lowest it lives · above sea level
58m
Highest it lives · above sea level
700m

IUCN (0 to 700)

Range size
1,860,525km²

Breeding

Reproduction
Oviparous

Feldman et al. 2015, Williams and Vera 2023

Average clutch
5.5eggs
Eggs or young per clutch
5–6eggs

5.5 (Rahhal et al. 2023)

Mean clutch
5.5eggs

Rahhal et al. 2023

Naming and history

Suborder
Serpentes
Infraorder
Alethinophidia
Subspecies
No
Described by
Duméril, Bibron, Duméril
Moved to another genus · since it was first described
Yes
Described in
1854
Type locality
Brazil

Keeping one

5 ft 11 in × 2 ft 11 in × 4 ft 5 in(179 × 90 × 135 cm)

Minimum length × width × height, for one animal. Bigger is always better. Substrate at least 2 ft 11 in (90 cm) deep.

The standard sizes snakes as a fraction of total length: 1 × 0.5 × 0.75.

Burrows, so substrate deep enough to dig in matters as much as floor area.

Mindestanforderungen an die Haltung von Reptilien (Sachverständigengutachten), German Federal Ministry for Nutrition, Agriculture and Forestry, Animal Welfare Division, 10 January 1997. The standard states these floor areas are recommendations rather than binding limits.

From this animal’s own total length of 5 ft 11 in (1794 mm), at 1 × 0.5 × 0.75 times it, following the German federal welfare standard — how this is worked out.

No preferred body temperature has been recorded for Southern Coral Snake. Rather than repeat a number from a care sheet, this page leaves it out.

Feeding

A prey item should be between the same width as the widest part of the snake's body and about 1.5 times that width.

Widely used across snake husbandry references. An alternative formulation gives prey at 10-15% of the snake's body mass. This is established practice, not a measurement.

101kJ per day

Worked out for an animal of 1,121 g, the heaviest recorded for Southern Coral Snake — so it is the top of the range, not a figure for a particular animal. Weigh yours and the number will be lower.

An upper estimate, not a feeding target, and not veterinary advice. The equation covers only what an animal burns staying alive, so a growing, gravid or recovering animal needs more — and it was measured on wild animals, which move far more than one in an enclosure. Body condition and a vet who knows the species are what a feeding decision should rest on. Where this comes from.

What nobody knows

These are not gaps in our research. No scientific dataset records them for this species — and saying so is information you cannot get from a reference that simply leaves a field out.

  • Length snout to vent · adult female mean
  • Length snout to vent · adult male mean
  • Length snout to vent · adult mean
  • Female length · mean, nose to tail
  • Length nose to tail · adult male mean
  • Length nose to tail · adult mean
  • Largest female · snout to vent
  • Largest male · snout to vent
  • Largest female · shell length
  • Largest male · shell length
  • Hatchling length · snout to vent
  • Largest juvenile · snout to vent
  • Largest juvenile · shell length
  • Egg length
  • Egg width
  • Body mass · a typical adult
  • Body mass · adult female, mean
  • Body mass at hatching
  • Longest recorded life
  • Preferred body temperature · chosen in a laboratory gradient
  • Body temperature when active · measured in the wild
  • Eats arthropods
  • Eats vertebrates
  • Eats plant matter
  • How the young develop
  • Gestation or incubation
  • Clutches in a year
  • Clutches a year · fewest
  • Clutches a year · most
  • First breeds from · youngest recorded
  • First breeds by · oldest recorded
  • Hatchling length · smallest recorded
  • Hatchling length · largest recorded
  • Age at first breeding · female
  • Mature from · youngest recorded
  • Mature by · oldest recorded
  • Size at maturity · smallest recorded
  • Size at maturity · largest recorded
  • Body temp in the wild · lowest mean recorded
  • Body temp in the wild · highest mean recorded
  • Colour on the back
  • Pattern on the back
  • Pupil
  • Sex decided by
  • Population trend
  • Red List criteria
  • Active season · shortest recorded
  • Active season · longest recorded
  • Density · lowest recorded
  • Density · highest recorded
  • Home range · largest recorded
  • Active in

Others in Elapidae

Take this data

Everything on this page is available as data under CC BY 4.0 — use it freely, credit it, no permission needed.

This species as JSON · the whole dataset

Cite this page

The Reptile & Amphibian Encyclopedia (2026). Micrurus frontalis. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/micrurus-frontalis

@misc{micrurus_frontalis_2026,
  title  = {Micrurus frontalis},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/micrurus-frontalis}
}

Sources

  1. Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
  2. Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.
  3. Catalogue of Life (dataset 3LR), used under CC BY.