Dusky pigmy rattlesnake
| Sistrurus miliarius barbouri | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Viperidae |
| Genus: | Sistrurus |
| Species: | S. miliarius |
| Subspecies: | S. m. barbouri |
| Trinomial name | |
| Sistrurus miliarius barbouri Gloyd, 1935 |
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Sistrurus miliarius barbouri is a venomous pit viper subspeciesendemic to the southeastern United States.
Common names for S. m. barbouri include Barbour's pygmy rattlesnake, dusky pygmy rattlesnake, Florida ground rattlesnake, ground rattlesnake, hog-nosed rattler, pygmy ground rattlesnake, pygmy rattler, pygmy rattlesnake, small rattlesnake, and southeastern ground rattlesnake.
The subspecific name, barbouri, is in honor of American herpetologist Thomas Barbour.
Adults of S. m. barbouri grow to between 35.5 and 76.0 cm (14.0 and 29.9 in) in total length, which includes the tail (Klauber, 1943). In a study that involved 103 males and 80 females, the average total length was 53.5 cm (21.1 in). Snellings and Collins (1997) reported a specimen measuring 80.3 cm (31.6 in) in total length, but it had been in captivity for over 12 years. The largest reported by Gloyd (1940) was one measuring 63.8 cm (25.1 in) in total length from St. Petersburg, Florida.
Regarding the coloration, this subspecies has dorsal spots that are more rounded, usually has a whitish belly that is heavily flecked or mottled with black or dark brown, and generally has 23 rows of dorsal scales at midbody.
This subspecies, S. m. barbouri, is found in the United States from extreme southern South Carolina through southern Georgia, all of Florida, west through southern Alabama, Mississippi and Louisiana.
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Wikipedia