Micrurus Fulvius – Eastern Coral Snake

Micrurus fulvius Eastern Coral Snake information and tips and bite

The eastern coral snake is a highly venomous snake that can be found throughout the Southeastern United States. It grows to an average size of up to 30 inches (75 cm). Its body is shiny and has alternating black, yellow and red crossbands.


The animal is strikingly colorful and shiny. The head and the neck are black with a broad yellow band over the middle of the head. Black and red crossbands are distributed very regularly along its body, which alternate and are limited to each side by a narrow yellow band. The tail does not have any red crossbands, black ones alternate with broader yellow bands. The belly is lighter colored, but shows the same pattern as the back. Especially specimen in southern Florida often have dark spots in the black rings along their bodies.

Eastern coral snake, long black, yellow and red snake United States
An eastern coral snake in a terrarium. Photo: John

How to distinguish between coral snake and scarlet snake and scarlet kingsnake?

Two nonvenomous snakes in the United States look very similar to the eastern coral snake and are often confused with it: the scarlet snake and the scarlet kingsnake (or scarlet milk snake) The easiest way to distinguish nonvenomous snakes from the coral snake is the color of the head. Both the scarlet snake and the scarlet kingsnake have a red head while the coral snake has a black head and neck.

Red face, I’m safe

A great way to tell the venomous coral snake from other types.

Another identification mark is the distribution of colors of the snake. Also for this fact, several local sayings exist:

Red on yellow’s a deadly fellow; yellow on black’s a friendly Jack

If the red bands directly touch the yellow bands, you are looking at the venomous coral snake.
Difference coral snake vs scarlet kingsnake how to distignuish the two


The average size of an adult eastern coral snake is 20-30 inches (50-75 cm). The largest ever recorded specimen was 51 inches (130 cm) long. Females are generally longer than males. The eastern coral snake is usually slightly smaller than the similar-looking Texas coral snake.

Micrurus fulvius Eastern Coral Snake information and tips and bite
An Eastern coral snake. Photo: Wikimedia Commons

Diet and Hunting Behavior

The main prey of the coral snake are reptiles such as lizards and other snakes, also younger and smaller coral snakes. The coral snake is mostly nocturnal and is rarely seen hunting or even basking during the day. When hunting, the snake lies in ambush waiting for prey to pass by in striking distance. As soon as an interesting animal has entered that range, the snake strikes with a quick bite and usually holds on to the animal and digests it as a whole. The potent venom quickly immobilizes the prey.

Bite and Venom

The coral snake disposes of a highly toxic venom. Theoretically, an adult snake carries enough venom to kill five humans – but it cannot inject a large amount of venom with one bite. Since the snake mostly hunts for small prey, its jaws are not built to bite large animals or humans. Furthermore, due to its mainly nocturnal lifestyle, very few bites from coral snakes occur. According to various sources, around 100 people are bitten by eastern coral snakes per year. Around 40% of these bites are dry bites because the snake is unable to inject its venom when biting into large objects.

Bites are generally not fatal but immediate medical attention is absolutely necessary. A medical professional will administer an antivenom to counter the potentially life threatening effects of a coral snake bite. Symptoms of a bite are local pain and swellings as well as gastrointestinal disorders and paralysis. In extreme and untreated cases, death can occur within 24-26 hours due to respiratory paralysis.


The coral snake can be found in various habitats throughout its natural range. Gererally, it is found at altitudes of around sea level up to a maximum of 1,300 feet (400 m). In Florida, the Eastern coral snake is mostly seen in the tropical hammocks as well as on üine or oak forests or glade lands. In Mississippi and Louisiana, the snake has adapted to a live in more arid, sandy creeks. In other areas, it is also found in open and scarsely vegetated areas.

Eastern coral snake range in the USA

The eastern coral snake can be found throughout the Southeastern United States. It ranges from Southeastern North Carolina, Eastern South Carolina, Southern Georgia, throughout Florida, Southern and Central Alabama, Southern Mississippi and Southeastern Louisiana.

Scientific classification of Micrurus fulvius

  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Reptilia
  • Order: Squamata
  • Suborder: Serpentes
  • Family: Elapidae
  • Genus: Micrurus
  • Species: Micrurus fulvius

Other common names

In addition to Eastern coral snake, Micrurus fulvius is commonly known under these names: American cobra, (Elaps or Florida) harlequin snake, coral adder, candy-stick snake, harlequin coral snake, red bead snake, thunder-and-lightning snake.

Micrurus Fulvius – Eastern Coral Snake

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