The juveniles however are remarkably different. The other ten subspecies may be black, brown, blue or green with a lighter color belly. The adults are usually olive grey-green with a yellow belly. priapus intergrades in extreme southern Illinois. The Eastern Yellowbelly Racer ( Coluber constrictor flaviventris) is a long, lean, fast snake. flaviventris Say, 1823, Eastern Yellow-bellied Racer found in most of the state, and C.

Smith (1961) listed two subspecies in Illinois, C. Nomenclatural History: It was transferred to the genus Basconion by Baird & Girard (1853), which is how Kennicott (1855) and Davis & Rice (1883) listed it. For priapus, Coluber constrictor priapus Dunn & Wood, 1939. Original Name: Coluber constrictor Linnaeus, 1758. For foxii, Basconion foxii Baird & Girard, 1853. Type Specimen: Not designated. For foxii, Holotype. Notes on eastern snakes of the genus Coluber. Smithsonian Inst., Washington, xvi + 172 pp. Catalogue of North American Reptiles in the Museum of the Smithsonian Institution. The dietary information on Blue Racers (Coluber constrictor foxii) is limited, and little is known about ontogenetic or seasonal differences in the prey species consumed. Systema Naturae per Regina tri Naturae secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Within this clade, the genus Coluber includes wide-ranging, actively foraging snakes that have been historically labeled as dietary generalists. Status: Locally common in some parts of the state.Įtymology: Coluber – (Latin) meaning snake constrictor – constrictus (Latin) meaning ‘drawn together’ f oxii – (New Latin) patronym for Charles Fox (1815-1854) priapus – Priapus (Latin) Roman god of male creative power. Main predators are other snakes and raptors.

Eats a variety of animals, including arthropods, worms, amphibians, reptiles, birds, and small mammals. The young, 20-35 cm TL, hatch in September. Mates in May and June and female lays 10-20 eggs in late June or July.

If cornered, vibrates the tail tip and can be counted on to strike repeatedly. Natural History: Alert and agile, often raises its head above the ground to look around, and reacts to disturbance by moving away quickly. Habitat: A variety of habitats including forests, open areas, and edges of forests near open fields. Hatchling and juvenile up to about 80 cm TL, blue-gray with 55-85 reddish brown blotches on back that become less distinct toward tail, and small dark spots along sides and belly. Throat distinctly lighter (yellow in northwest, white elsewhere). Phillipsĭescription: Adult long (up to 150 cm TL) and slender with shiny, uniformly blue, blue-green, or black back. ISBN 9780842523318.Juvenile North American racer, Perry County, Illinois. Threatened and Endangered Species and Habitats in British Columbia and the Yukon: Proceedings of the Symposium.

^ Stace-Smith, Richard and Lois Johns (1980).

Best Hikes with Dogs: Central California. Coluber constrictor foxii, commonly known as the blue racer, is a subspecies of Coluber constrictor, a species of nonvenomous, colubrid snakes commonly referred to as the eastern racers. Amphibians and Reptiles of British Columbia. Searching for Paradise: Economic Development and Environmental Change in the Mountain West. WebColuber constrictor foxii, commonly known as the blue racer, is a subspecies of Coluber constrictor, a species of nonvenomous, colubrid snake commonly.

Coluber constrictor foxii poisonous