Central Ratsnake (often called Black Ratsnake)
Pantherophis alleghaniensis • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: P. alleghaniensis
Eastern United States, from the Appalachian Mountains westward to the Mississippi River, including all of West Virginia, and north to the Great Lakes.
Look up Central Ratsnake (often called Black Ratsnake) in the Snake Encyclopedia →Venomous Status
Non-venomous; lacks fangs and venom delivery apparatus.
Danger Level
Harmless; posed no significant threat to humans. May bite if handled roughly, but wounds are superficial.
Family
Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Pantherophis, Species: P. alleghaniensis
Conservation
IUCN Red List: Least Concern. Generally abundant, though threatened locally by habitat fragmentation and intentional killing by humans due to fear.
Physical Description
Adults are primarily glossy black with weakly keeled scales. White or cream-colored chin and throat. Sub adult patterns (blotches) may be faintly visible under certain lighting. Head is slightly wider than the neck, with round pupils and large dark eyes.
Size & Dimensions
The specimen appears to be an adult, approximately 4-5 feet (122-152 cm) long. The species typically ranges from 3.5 to 6 feet, with rare records exceeding 8 feet.
Habitat
Highly adaptable; found in deciduous forests, edge habitats, rocky hillsides, and farm fields. Often associated with human structures like barns and attics. Elevation ranges from sea level to over 1,300 meters.
Behavior & Temperament
Diurnal or crepuscular depending on temperature. Generally docile but can be defensive. Known for the 'S-curve' posture and vibrating their tail in leaf litter to mimic a rattlesnake when threatened. Excellent climbers.
Diet & Feeding
Active foragers and powerful constrictors. Primary diet consists of rodents (mice, rats), birds, and bird eggs. Frequently found in trees or rafters searching for nests.
Reproduction
Oviparous (lays eggs). Clutch sizes typically range from 10 to 30 eggs, laid in early summer in rotting logs, leaf litter, or mulch piles. Hatchlings emerge in late summer or fall.
Venom Profile
Non-venomous - no medically significant venom.
Look-alikes
Often confused with the Northern Black Racer (Coluber constrictor), which has smooth scales and a more slender build, or the Timber Rattlesnake (Crotalus horridus), though the latter has a triangular head, vertical pupils, and a rattle.
Conservation Status
IUCN Red List: Least Concern. Generally abundant, though threatened locally by habitat fragmentation and intentional killing by humans due to fear.
Cultural Significance
Highly valued by farmers for ecological pest control, as a single snake can consume dozens of rodents per year. Often featured in North American folklore as a 'homestead protector'.
Notable Features
Remarkable climbing ability facilitated by unique 'loaf-of-bread' shaped body cross-section that allows them to grip vertical tree bark and mortar lines in brick walls.
Notes
WV