Which snake is characterized by a brown or grey body and reddish-orange stripe?

The Dusky Pygmy Rattlesnake is characterized by its distinct coloration, which typically features a brown or grey body adorned with a reddish-orange stripe running along its back. This striking pattern acts as a form of camouflage among the leaf litter and forest floor where it resides. The coloration helps to not only keep it concealed from potential predators but also aids in ambushing prey.

The other snakes listed do not possess this unique combination of colors. For example, the Cotton Mouth Snake generally has a darker, more uniform coloration and is known for its aquatic habits and defensive displays. The Carolina Pygmy Rattlesnake, while somewhat similar, has a different scale pattern and color intensity. The Eastern Coral Snake stands out with its bright pattern of red, yellow, and black banding, markedly different from the earthy tones of the Dusky Pygmy. This distinct coloration is an important identifying feature for the Dusky Pygmy Rattlesnake.