IUCN Red List assessments

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IUCN Red Lists of the family Viperidae

Taxonomy and distribution of the genus Crotalus

Bibliography of the genus Crotalus

Genus Crotalus Typical Rattlesnakes IUCN Red List assessments: Extinct (in recent times): 0 species Extinct in the Wild: 0 species = 0.0 % Critically Endangered: 1 species = 1.7 % Endangered: 1 species = 1.7 % Vulnerable: 1 species = 1.7 % Near Threatened: 0 species = 0.0 % Least Concern: 32 species = 54.2 % Data Deficient: 2 species = 3.4 % Not Assessed: 22 species = 37.3 %