Massasauga
Sistrurus catenatus • Order: Squamata, Suborder: Serpentes, Family: Viperidae, Subfamily: Crotalinae, Genus: Sistrurus, Species: S. catenatus
North America, primarily distributed in parts of the central and eastern United States and southern Ontario, Canada.
Look up Massasauga in the Snake Encyclopedia →Family
Order: Squamata, Suborder: Serpentes, Family: Viperidae, Subfamily: Crotalinae, Genus: Sistrurus, Species: S. catenatus
Conservation
IUCN Red List status is Vulnerable (or Endangered in many local jurisdictions), primarily threatened by habitat loss, wetland drainage, and human persecution.
Physical Description
Stocky body, heavily keeled scales, distinct triangular head with a blunt snout, and a series of dark brownish-black dorsal blotches on a gray to brownish-gray background.
Size & Dimensions
Adults typically range from 45 to 75 cm in total length, with maximum recorded lengths approaching 100 cm.
Habitat
Wetlands, prairies, sedge meadows, marshes, and damp lowland areas, often using crayfish burrows for shelter.
Diet & Feeding
Primarily preys on small mammals such as mice and voles, as well as amphibians and occasionally other reptiles, using an ambush hunting strategy.
Reproduction
Ovoviviparous (giving birth to live young), with females producing litters ranging from 5 to 20 young every two to three years.
Conservation Status
IUCN Red List status is Vulnerable (or Endangered in many local jurisdictions), primarily threatened by habitat loss, wetland drainage, and human persecution.
Cultural Significance
Plays a vital role in local ecosystem regulation by managing small rodent populations, though often misunderstood and historically impacted by negative human attitudes.
Notable Features
Possesses a segmented rattle on the tail tip used to produce a buzzing warning sound when disturbed, and relies heavily on subterranean burrows for overwintering.