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• Size: Black racers can grow to six feet in length, though their average size is four feet. (Copperheads are two to three feet long.) (Copperheads are two to three feet long.)
The black-tailed rattlesnake (Crotalus molossus) is a venomous pit viper species found in the southwestern United States and Mexico. Four subspecies are currently recognized, including the nominate subspecies described here.
Rena humilis, known commonly as the western blind snake, the western slender blind snake, and the western threadsnake, [4] is a species of snake in the family Leptotyphlopidae. The species is native to the southwestern United States and northern Mexico. Six subspecies are recognized as being valid, including the nominate subspecies described ...
Rena dulcis, also known commonly as the Texas blind snake, the Texas slender blind snake, or the Texas threadsnake, [4] is a species of snake in the family Leptotyphlopidae. The species is endemic to the Southwestern United States and adjacent northern Mexico. Three subspecies are currently recognized, including the nominate subspecies ...
In the western rattlesnake (C. oreganus), the pale tail rings are the same color as the ground. The tail of the black-tailed rattlesnake (C. molossus), is a uniform black, or has indistinct tail rings. The Mexican west coast rattlesnake (C. basiliscus), also has a mostly dark tail with
The body is cylindrical with a blunt head and a short tail. The scales are highly polished. The pheromones they produce protect them from attack by termites. [4] Among these snakes is what is believed to be the world's smallest: L. carlae (Hedges, 2008). [5]
Hubbs and O'Connor (2012) list an adult size range of 812–1,219 mm (32.0–48.0 in). [ 7 ] The color pattern consists of a dark grayish, brownish black, reddish brown, or blackish ground color, overlaid with a dorsal pattern of blotches that are rectangular anteriorly, becoming subhexagonal posteriorly, eventually becoming crossbands just ...
On the belly, it has a double row of clean-cut black half-moon spots running down the middle. [8] It has a narrow head and small eyes. Adult size is typically less than 35 cm (14 inches) in total length (including tail). However, maximum recorded total length is 53 cm (21 in). [9] The keeled dorsal scales are arranged in 19 rows at midbody.