Pygmy Rattlesnake
Sistrurus miliarius
Silhouette: Steven Traver · PhyloPic
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassSquamata
- FamilyViperidae (Vipers)
- GenusSistrurus (Massasaugas)
- SpeciesSistrurus miliarius (Pygmy Rattlesnake)
About the Pygmy Rattlesnake
Common names: pygmy rattlesnake, eastern pygmy rattlesnake, ground rattlesnake, leaf rattler, death rattler, more. Sistrurus miliarius, commonly called the pygmy rattlesnake, is a species of venomous snake in the subfamily Crotalinae (pit vipers) of the family Viperidae. The species is endemic to the Southeastern United States. Three subspecies are currently recognized.
Sistrurus miliarius is a small species, but bulky in width, with adults usually growing to 40–60 cm (16–24 in) in total length (including tail). It is the smallest species of rattlesnake on the North American continent. The maximum reported total length is 78.8 cm (31.0 in) (Klauber, 1972). Snellings and Collins (1997) reported a specimen of S. m. barbouri measuring 80.3 cm (31.6 in), but it had been in captivity for over 12 years. The largest S. m. barbouri reported by Gloyd (1940) was a specimen measuring 63.8 cm (25.1 in) from St. Petersburg, Florida. Shine (1978) suggested that in some populations, males may be larger than females, but a later study by Bishop et al. (1996) did not find sexual dimorphism of any kind in a population in Volusia County, Florida. It is currently theorized that the lack... Wikipedia →
Recent sightings of Pygmy Rattlesnake in Everglades National Park
LIVEiNaturalistClosest Relatives at Everglades National Park
Global Distribution
Warmer areas are where this animal is recorded most often.
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Everglades National Park | 🇺🇸 United States | |
| 2 | Big Cypress National Preserve | 🇺🇸 United States |
Quick answers
What are the chances of seeing a Pygmy Rattlesnake in Everglades National Park?
About 10% of wildlife watchers report a Pygmy Rattlesnake sighting in Everglades National Park, based on 66 verified sightings from GBIF citizen-science data.
When is the best time to see Pygmy Rattlesnake in Everglades National Park?
November has the highest sighting rate for Pygmy Rattlesnake in Everglades National Park in our monthly data.