| Sistrurus miliarius streckeri | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Viperidae |
| Genus: | Sistrurus |
| Species: | |
| Subspecies: | S. m. streckeri |
| Trinomial name | |
| Sistrurus miliarius streckeri | |
Sistrurus miliarius streckeri is a venomous pit viper subspecies [3] found in the southcentral United States.
The subspecific name, streckeri, is in honor of American naturalist John Kern Strecker. [4]
Adult specimens of S. m. streckeri are 40–63 cm (16–25 in) in total length (including tail). In one study, the average length of 55 males and 49 females was 52 cm (20 in). [2]
Its color pattern is distinct and very irregular, the middorsal series of blotches being plainly wider than they are long. Along the sides there are only 1-2 series of spots, the upper ones being higher than they are wide. Any dark pigment on the belly is diffuse, the blotches there usually not being wider than one scale. This race also has the lowest number of ventral scales for the species (Gloyd, 1935). [2]
Common names for S. m. streckeri include ground rattlesnake, pygmy rattlesnake, southern pygmy rattlesnake, Strecker's pygmy rattlesnake, western ground rattlesnake, western pygmy rattlesnake. [2]
Sistrurus miliarius streckeri is found in the United States in Mississippi (except for southeast of the Pearl River Valley), west through Louisiana into eastern Texas, and north into southeastern and central Oklahoma, Arkansas, southern Missouri, and southwestern Tennessee. The type locality listed is "... near Imboden, Lawrence County, Arkansas" (USA). [1]
Agkistrodon contortrix is a species of venomous snake, a pit viper, endemic to Eastern North America; it is a member of the subfamily Crotalinae in the family Viperidae. The generic name is derived from the Greek words ancistro (hooked) and odon (tooth), and the specific name comes from the Latin contortus ; thus, the scientific name translates into "twisted hook-tooth". The common name for this species is the copperhead. Its behavior may lead to accidental encounters with humans. Five subspecies are currently recognized, including the nominate subspecies described here.
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Sistrurus is a genus of venomous pit vipers in the subfamily Crotalinae of the family Viperidae. The genus is endemic to Canada, the United States, and Mexico. The generic name is a Latinized form of the Greek word for "tail rattler" and shares its root with the ancient Egyptian musical instrument, the sistrum, a type of rattle. Three species are currently recognized.
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Crotalus oreganus abyssus is a venomous pit viper subspecies found only in the U.S. states of Arizona and Utah.
Sistrurus miliarius barbouri is a venomous pit viper subspecies endemic to the southeastern United States.
Crotalus lutosus is a venomous pit viper species found in the Great Basin region of the United States.
Crotalus pricei is a species of venomous snake, a pit viper in the family Viperidae. The species is endemic to the southwestern United States and northern Mexico. Two subspecies are recognized, including the nominate subspecies described here.
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Hypnale walli, or Wall's hump-nosed viper, is a venomous pitviper species endemic to Sri Lanka. The smallest member of its genus, it is distinguished by having a strongly upturned nose and lower scale counts. No subspecies are currently recognized.
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