Coluber constrictor oaxaca, commonly known as the Mexican racer, is a nonvenomous colubridsnake, a subspecies of the eastern racer (Coluber constrictor).
Adults of Coluber constrictor oaxaca are 51–102 cm (20-40 inches) in total length.[4]
They are greenish dorsally and yellowish ventrally. They have eight upper labials and eight lower labials.[5]
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.[4]
References
^Boulenger, G.A. 1893. Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families...Colubridæ Aglyphæ, part. Trustees of the British Museum (Natural History). (Taylor and Francis, Printers.) London. xiii + 448 pp. + Plates I.- XXVIII. ("Zamenis oaxacæ", p. 386.)
^Boulenger, G.A. 1896. Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ),... Trustees of the British Museum (Natural History). (Taylor and Francis, Printers.) London. xiv + 727 pp. + Plates I.- XXV. (Zamenis stejnegerianus, p. 621.)
^Wright, A.H., and A.A. Wright. 1957. Handbook of Snakes of the United States and Canada. Comstock. Ithaca and London. 1,105 pp. (in 2 volumes) (Coluber constrictor stejnegerianus, pp. 149-152, Figure 47.)
^ abcConant, R. 1975. A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition. Houghton Mifflin. Boston. 429 pp. ISBN0-395-19977-8 (paperback). (Coluber constrictor oaxaca, pp. 180-181, Figure 40. + Map 139.)
^Smith, H.M., and E.D. Brodie, Jr. 1982. Reptiles of North America: A Guide to Field Identification. Golden Press. New York. 240 pp. ISBN0-307-13666-3 (paperback). (Coluber constrictor oaxaca, p. 190.)
Further reading
Jan, G. 1863. Elenco sistematico degli ofidi descritti e disegnati per l'iconografia generale. A. Lombardi. Milan. vii + 143 pp. (Coryphodon oaxaca, p. 63.)
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