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Bothrops atrox — also known as the common lancehead, fer-de-lance, barba amarilla, [3] and mapepire balsain — is a highly venomous pit viper species found in the tropical lowlands of northern South America east of the Andes, as well as the Caribbean island of Trinidad. [2] No subspecies are currently recognized. [4]
The venom of the fer-de-lance is so potent that didelphine opossums (i.e., opossums like the Virginia opossum), which are normally immune to the venom of pit vipers and rattlesnakes, are still capable of succumbing to the venom of this snake. This is especially the case if the opossum is not fully grown (and thus the venom is more concentrated ...
Bothrops lanceolatus — known as the fer-de-lance, Martinican pit viper, [3] and Martinique lancehead [1] [4] [5] — is a species of pit viper endemic to the Caribbean island of Martinique. [1] [4] Some reserve the common name fer-de-lance for this species, while others apply that name to other Bothrops species, as well.
After the fer-de-lance (Bothrops asper), it is the most common cause of snake envenoming. In the first half of the 20th century as well as in the 1950s and 1960s, 12% of treated cases ended fatally. In the first half of the 20th century as well as in the 1950s and 1960s, 12% of treated cases ended fatally.
Brood sizes range from two for very small species, to as many as 86 for the fer-de-lance, Bothrops atrox, which is among the most prolific of all live-bearing snakes. Many young crotalines have brightly coloured tails that contrast dramatically with the rest of their bodies.
Bothrops is a genus of highly venomous pit vipers endemic to the Neotropics. [1] The generic name, Bothrops, is derived from the Greek words βόθρος, bothros, meaning ' pit ', and ὄψ, ops, meaning ' eye ' or ' face ', together an allusion to the heat-sensitive loreal pit organs.
Initially, these snakes were misidentified as known species of pit viper. A DNA analysis of the “cryptic” snakes later revealed that the animals belonged to a “distinct species,” the study ...
Accidents with this pit viper are extremely rare, with only one report. The victim had local pain and edema, and after a week had developed left facial hemiplegia with facial paralysis and local bleeding, extensive swelling, edema in the abdomen and chest, necrosis and cerebral ischemia.