The Crotalinae, commonly known as pit vipers, [2][3] or pit adders, are a subfamily of vipers found in Asia and the Americas. Like all other vipers, they are venomous.

This is a list of all sure genera, species and subspecies of the subfamily Crotalinae, [1] otherwise referred to as crotalines, pit vipers, or pitvipers, and including rattlesnakes Crotalus and Sistrurus.

Feb 21, 2025 · pit viper, any species of viper (subfamily Crotalinae) that has, in addition to two movable fangs, a heat-sensitive pit organ between each eye and nostril which together help it accurately aim its strike at its warm-blooded prey.

The Crotalinae, commonly known as pit vipers, crotaline snakes (named for the Ancient Greek: κρόταλον krotalon castanet/rattle of a rattlesnake's tail), or pit adders, are a subfamily of venomous vipers found in Eurasia and the Americas.

Crotalus is a genus of pit vipers, commonly known as rattlesnakes or rattlers, [2] in the family Viperidae. The genus is found only in the Americas from southern Canada to northern Argentina. [1] .

The Crotalinae, also known as the "pit vipers" or "crotaline snakes", are a subfamily of venomous vipers found in Asia and the Americas. There are 23 genera and 155 species which are known.

Crotalinae, whose members are commonly known as pit vipers (or pitvipers, pit-vipers), is a subfamily of venomous vipers (family Viperidae) characterized by the presence of a heat-sensing pit organ located between the eye and the nostril on either side of the head.

The Crotalinae, commonly known as pit vipers, crotaline snakes (named for the Ancient Greek: κρόταλον krotalon castanet/rattle of a rattlesnake’s tail), or pit adders, are a subfamily of venomous vipers found in Eurasia and the Americas.

Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.

Jan 2, 2011 · In 1934, Eugen Werle and associates described the hypotensive factor in urine, and presuming that it originated from the pancreas, they named it kallikrein from the Greek word kallikreas for pancreas.