![]() ![]() Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, 10th Edition, vol. 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. Opinion 1201 Elapidae Boie, 1827 (Reptilia, Serpentes): ruling to stabilize nomenclature of taxa in this family (and others).Bulletin of Zoological Nomenclature 39(1), 21-26 (1982) Coluber constrictor ssp.North American Racer. The Female Reproductive Output Hypothesis proposes that females have relatively shorter tails as a secondary result of natural selection for increased reproductive capacity. International Commission on Zoological Nomenclature. The Morphological Constraint Hypothesis proposes that males have relatively longer tails to accommodate hemipenes and retractor muscles. Carnegie Museum of Natural History Special Publication, no. J., ed., 1993: Herpetofauna Mexicana: Lista anotada de las especies de anfibios y reptiles de México, cambios taxonómicos recientes, y nuevas especies. Coluber constrictor oaxaca, commonly known as the Mexican racer, is a nonvenomous colubrid snake, a subspecies of the eastern racer (Coluber constrictor). ![]() Gardner, 1987: Checklist of Vertebrates of the United States, the U.S. black racer in English North American Racer in English Eastern Racer in English Racer in English Bibliographic Referencesīanks, R. Western yellow-bellied Racer in language. Racer in English Racer in English Racer in English Schwarznatter in German Southern Black Racer in language. Besides the southern black racer, there are ten other subspecies of Coluber constrictors. These snakes are non-venomous and are usually found throughout the Southeastern United States, especially in Florida. North American Racer in English North American Racer in English Northern Black Racer in language. The southern black racer ( Coluber constrictor priapus) is a common subspecies of the Coluber constrictor. Corredora in Spanish Culebra-corredora constrictor in Spanish Eastern Racer in English Eastern Racer in English Eastern Racer in English Eastern Racer in English Eastern racer in language. Name Synonyms Bascanion constrictor (Linnaeus, 1758) Bascanion vetustus Baird & Girard, 1853 Bascanium anthicum Cope, 1862 Coluber flaviventris Say, 1823 Coluber mormon Baird & Girard, 1852 Coluber ortenburgeri Stuart, 1934 Coryphodon oaxaca Jan, 1863 Scoliophis atlanticus Davis et al., 1817 Zamenis conirostris Cope, 1895 Zamenis constrictor Boulenger, 1893 Zamenis stejnegerianus Cope, 1895 Homonyms Coluber constrictor Linnaeus, 1758 Common names Black Racer in English Black Racer in English Blackmask Racer in language. The blue racer (Coluber constrictor foxii) is a species of non-venomous snake native to North America, particularly the Great Lakes region and parts of the. ![]()
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