Mottled Rock Rattlesnake
Crotalus lepidus lepidus
A small rattlesnake with a mottled, rock-matching pattern found in rugged limestone and granite terrain of the southwestern United States and Mexico.
- Venomous?
- Venomous
- Adult length
- 0.4-0.7 m (1.3-2.3 ft)
- Range
- Rocky terrain of Texas, New Mexico, and northern Mexico
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Overview
The Mottled Rock Rattlesnake is a subspecies of the rock rattlesnake found in the rugged, rocky terrain of western Texas, southern New Mexico, and adjacent regions of northern Mexico. Its blotchy, irregular pattern helps it blend into lichen-covered rock surfaces.
It is a small, secretive species that spends much of its time in rock crevices, relying on stillness and camouflage rather than flight to avoid predators.
How to identify it
- Background color pale gray, pinkish, or tan, often matching local rock coloration
- Irregular, mottled dark blotches rather than clean, evenly spaced bands
- Small, slender body
- Broad triangular head, elliptical pupils, heat-sensing pits
- Small rattle
- Distinguished from the banded rock rattlesnake by more irregular, blotchy patterning rather than distinct crossbands
Habitat & range
Found in rocky canyons, talus slopes, and limestone or granite outcrops in western Texas, southern New Mexico, and parts of northern Mexico, typically at moderate elevations.
Behavior, diet & reproduction
Primarily crepuscular and nocturnal during hot weather, shifting to daytime activity in cooler months. Feeds on lizards and small rodents. Reproduces via live birth. Highly camouflaged and often remains still against rock rather than fleeing when approached.
Frequently asked questions
How can the Mottled Rock Rattlesnake be identified?
By its small size, pale rock-matching background color, and irregular, blotchy dark markings rather than clean bands.
Where does it live?
In rocky canyon and talus habitat of western Texas, southern New Mexico, and northern Mexico.
Is it the same as the Banded Rock Rattlesnake?
It is a closely related subspecies of Crotalus lepidus but shows a more mottled, less distinctly banded pattern.
What does it eat?
Primarily lizards and small rodents found among its rocky habitat.
Mottled Rock Rattlesnake guides
In-depth guides for identifying and understanding Mottled Rock Rattlesnake.
