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. Racers in Michigan are a dark-blue color and have white. The Eastern Yellowbelly Racer ( Coluber constrictor flaviventris) is a long, lean, fast snake.
#COLUBER CONSTRICTOR SNAKES MICHIGAN SKIN#
The blue and black racers have no skin patterns, but some other racers have spots or blotches. Thermal behaviour of the snake Coluber constrictor in west-central California. Coluber constrictor is a species of nonvenomous, colubrid snake, endemic to North America and Central America. They range in color from blue in the north to black in the south and yellow and gray in the western U.S. The tan racer, as its name implies, is typically a solid tan brown in color. It is endemic to the southern United States.
Like all colubrids, however, they are nonvenomous and harmless to humans. Coluberconstrictor is a long, slender snake, which can reach lengths of 6 feet (191 cm). Coluber constrictor etheridgei, commonly known as the tan racer, is a nonvenomous colubrid snake, a subspecies of the eastern racer (Coluber constrictor). The remaining colubrid species, eastern milk snakes (Lampropeltis triangulum triangulum), are often misidentified as eastern Massasauga rattlesnake because of their rattling tails and blotchy scales. Colubrids in the Elaphe group are the largest snakes in Michigan, including the black rat snake (Elaphe obsoleta obsoleta) and two species of fox snake (Elaphe valpina and Elaphe gloydi). Michigan species and subspecies include the blue racer (Coluber constrictor foxi), Kirtland's snake (Clonophis kirtlandii), the ring-necked snake (Diadophis punctatus edwardii), the queen snake (Regina septemnittata), the eastern hog-nosed snake (Heterodon platirhinos), the red-bellied snake (Storeria occipitomaculata occipitomaculata) and the smooth green snake (Liochlorophis vernalis). All species are nonvenomous they kill their prey by constriction. We are talking of course, about the blue racer, or Coluber constrictor foxii as it is known by its scientific name. All other Michigan snake species are members of the Colubrinae subfamily of colubrid snakes.
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