Lachesis

Lachesis is a genus of venomous pit vipers found in Central and South America. The name is derived from the Greek mythological character Lachesis, one of the three Fates who determined the length of the thread of life. The genus includes three species, all of which are capable of delivering a potent hemotoxic venom.

Description

Members of the genus Lachesis are among the longest venomous snakes in the New World. They are distinguished by their broad, triangular heads, which are much wider than their necks. Their bodies are heavy and muscular, and they have a distinct ridge running down the center of their snouts.

Distribution and habitat

Lachesis snakes are found throughout Central and South America, from Costa Rica in the north to northern Argentina in the south. They inhabit a variety of habitats, including rainforests, dry forests, and savannas.

Behavior

These snakes are primarily nocturnal and terrestrial. They are known to be aggressive when threatened, and will readily strike if provoked.

Venom

The venom of Lachesis snakes is highly potent and can cause severe symptoms in humans, including pain, swelling, and in severe cases, systemic effects such as hypotension and coagulopathy.

Species

There are three recognized species in the genus Lachesis:

• Lachesis acrochorda
• Lachesis melanocephala
• Lachesis muta

See also

• List of crotaline species and subspecies
• Snakebite

External links

• Integrated Taxonomic Information System - Lachesis

Lachesis

• 
  Lachesis MET DP217833
• 
  The Triumph of Death, or The Three Fates