What venomous snake is also called the fer-de-lance on Martinique?

What venomous snake is also called the fer-de-lance on Martinique? Bothrops lanceolatus is Martinique’s fer-de-lance.

Bothrops lanceolatus is a pit viper endemic to Martinique in the Lesser Antilles. It is also called the Martinican pit viper or Martinique lancehead. Like other Bothrops, it has heat-sensing pits between the eyes and nostrils and uses venom to subdue prey such as rodents, birds, lizards and frogs.

Its venom can cause swelling, bleeding, clotting abnormalities and muscle damage in humans. The snake is an ambush predator: it can wait motionless at a favoured site and strike prey that comes within range. It is also associated with Martinique’s historic “snake flag,” which depicts two snakes.

“Fer-de-lance” is a frequent source of confusion because the name is used for several Bothrops species in different places, especially in mainland Central and South America. On Martinique, the canonical species-level answer is Bothrops lanceolatus, not the related Bothrops atrox or Bothrops asper.