Sistrurus miliarius streckeri
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[Photo] Western Pygmy Rattlesnake, Sistrurus miliarius streckeri. Photographer: LA Dawson http://en.wikipedia.org/wiki/User:Dawson

Common names: western pigmy rattlesnake, Strecker's pigmy rattlesnake, more.

Sistrurus miliarius streckeri is a venomous pit viper subspecies found in the south-central United States.

Description
Adult specimens are 40-63 cm in length. In one study, the average length of 55 males and 49 females was 52 cm.

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).

Common names
Ground rattlesnake, pigmy rattlesnake, southern pigmy rattlesnake, Strecker's pigmy rattlesnake, western ground rattlesnake, western pigmy rattlesnake.

Geographic range
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 Oklahoma, Arkansas, southern Missouri and southwestern Tennessee. The type locality listed is "... near Imboden, Lawrence County, Arkansas" (USA).

http://en.wikipedia.org/wiki/Sistrurus_miliarius_streckeri

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