Trans-pecos Ratsnake

Bogertophis subocularis

Reptiles & AmphibiansIn the app

Dorsum either orange, yellow, or light olive. Head usually resembles dorsum base color. Dark brown blotches resembling an "H" shape run down back. Belly is cream colored.…

Trans-pecos Ratsnake illustration

How to identify

Dorsum either orange, yellow, or light olive. Head usually resembles dorsum base color. Dark brown blotches resembling an "H" shape run down back. Belly is cream colored. Possesses weakly keeled dorsal scales and divided anal scale. Adult length ranges from 76-140 cm (30-55 in). Eggs hatch 9 to 15 weeks after mating; average clutch size is between 3 and 11 eggs.

Range

South Central United States and Northern Mexico from southern New Mexico and southwestern Texas through Chihuahua, Coahuila, Durango and Nuevo Leon.

Habitat

Prefers rocky, dry areas ranging from basins to valleys to woodland. During the day, will stay in crevasses in rocks or underground.

Variations

Some individuals exhibit light stripes instead of solid white or cream color under tail.

Similar species

Name and etymology

Subocularis: Latin for below (sub) the eye (oculus), referencing the lorilabial scales below each eye.

At a glance

Range

South Central United States and Northern Mexico from southern New Mexico and southwestern Texas through Chihuahua, Coahuila,…

Habitat

Prefers rocky, dry areas ranging from basins to valleys to woodland. During the day, will stay in crevasses in rocks or under…

Guide

Reptiles and Amphibians of North America

Range map

Range map for Trans-pecos Ratsnake

Approximate range. © Mapbox © OpenStreetMap

Sources & further reading