Tetrachirus is a taxonomic genus of small, venomous snakes belonging to the family Elapidae. These snakes are commonly referred to as swamp snakes or South American coralsnakes. The genus Tetrachirus consists of only one species, Tetrachirus sylvaticus, a snake that primarily inhabits the regions of northern South America, including Brazil, Colombia, Ecuador, Peru, and Venezuela.
These snakes can grow to a maximum length of around 75 centimeters. They have slender bodies, vibrant color patterns, and markings that resemble those of other venomous coral snakes. The coloration typically includes several rings of alternating black, red, and yellow bands. Tetrachirus snakes are highly venomous, possessing a potent neurotoxic venom that can immobilize their prey and cause serious harm to humans.
Tetrachirus snakes predominantly reside in swampy areas, wetlands, and rainforests, where they can be found burrowed beneath leaf litter or hiding in vegetation. They are largely nocturnal, remaining concealed during the day and becoming more active during the cooler hours of the evening and night, when they hunt for small vertebrates like lizards, frogs, and small snakes.
Though Tetrachirus snakes may present a potential danger due to their venomous bites, their naturally reclusive behavior and specific habitat preferences typically limit interactions with humans.
