Suborder Serpentes Genus Coluber Higher classification Coluber constrictor Order Scaled reptiles | Subphylum Vertebrata Phylum Chordata Rank Subspecies | |
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Scientific name Coluber constrictor oaxaca Similar Snake, Coluber constrictor, Coluber, Coluber constrictor anthicus, Reptile | ||
Coluber constrictor oaxaca, commonly known as the Mexican racer, is a nonvenomous colubrid snake, a subspecies of the eastern racer (Coluber constrictor).
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Geographic range
It is found primarily in Mexico, from Tamaulipas to Vera Cruz, with isolated records of it occurring in Nuevo León, Coahuila, Durango, Colima, Oaxaca, and Chiapas. The subspecies also ranges as far north as the United States in southern Texas, and as far south as Guatemala. It is known to intergrade with the eastern yellowbelly racer (Coluber constrictor flaviventris).
Description
Adults of Coluber constrictor oaxaca are 51-102 cm (20-40 inches) in total length.
They are greenish dorsally, and yellowish ventrally. They have 8 upper labials and 8 lower labials.
Juveniles have dark, narrow, close-spaced crossbands on the anterior part of the body, unlike the middorsal blotches of juveniles of most other subspecies of Coluber constrictor.