![]() Elenco sistematico degli ofidi descritti e disegnati per l'iconografia generale. Reptiles of North America: A Guide to Field Identification. A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition. etheridgei is found in west-central Louisiana and adjacent eastern Texas. The subspecies is native to the southern United States. Juveniles blotched, fading to uniform olive toward tail. Belly yellowish, cream, or black and unmarked. ![]() ![]() Labial scales, chin, and neck usually lighter. Uniform black, dark gray, or olive rarely with speckling of lighter scales. (in 2 volumes) ( Coluber constrictor stejnegerianus, pp. Coluber constrictor etheridgei, commonly known as the tan racer, is a subspecies of non venomous snake in the family Colubridae, a subspecies of the eastern racer ( Coluber constrictor ). Coluber constrictor ssp.North American Racer. Handbook of Snakes of the United States and Canada. They eat a wide variety of prey including insects, lizards, snakes, birds, rodents, and amphibians. Trustees of the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ). Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families.Colubridæ Aglyphæ, part. Juveniles have dark, narrow, close-spaced crossbands on the anterior part of the body, unlike the mid-dorsal blotches of juveniles of most other subspecies of Coluber constrictor. They have eight upper labials and eight lower labials. Coluber constrictordoes not constrict, as the scientific name implies, but pins its prey with body loops and swallows it alive. They are greenish dorsally and yellowish ventrally. It is known to intergrade with the eastern yellow-bellied racer ( Coluber constrictor flaviventris).Īdults of Coluber constrictor oaxaca are 51–102 cm (20-40 inches) in total length. The subspecies also ranges as far north as the United States in southern Texas and as far south as Guatemala. The western yellow-bellied racer ( Coluber constrictor mormon ), also known as the western yellowbelly racer or western racer, is a snake species endemic to the Western United States, including California, Oregon, Nevada, New Mexico, Utah, Montana and Colorado. 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. Wright, 1957 Ĭoluber constrictor oaxaca, commonly known as the Mexican racer, is a nonvenomous colubrid snake, a subspecies of the eastern racer ( Coluber constrictor). Coluber constrictor stejnegerianus - A.H. mentovarius GARMAN 1884: 42 Coryphodon mentovarius BOCOURT 1888 (fide VILLA et al.
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