11/18/2023 0 Comments Coluber constrictor foxii carePlainbelly (copperbelly) water snakes have keeled scales and orange red belly and lip scales. ![]() Western rat snakes have weakly keeled scales, a divided anal plate, and usually have traces of a pattern. The two subspecies are similar to one another and individuals resembling either subspecies may be found anywhere throughout their Iowa range.Ī North American racer, Coluber constrictor, from Louisa County, Iowa. The blue racer was not recognized recently for a brief period of time and is still not recognized by some taxonomists. The eastern yellow-bellied racer, Coluber constrictor flaviventris and the blue racer, Coluber constrictor foxii are the two subspecies found in Iowa. A North American racer, Coluber constrictor, from Lee County, Iowa. The belly is white with small brown or reddish spots and the tail is uniformly brown and unmarked. The young are much different from adults and have a white or gray ground color with black, brown, or reddish blotches. Racers have smooth scales and divided anal plates. Some specimens from Lee County are velvety black with light bellies. ![]() The throat and neck are bright yellow and the chin and upper labials may be yellow or white. The belly is dirty white, porcelain, or yellow with no markings. Adults are uniform gray, blue, bluish black, greenish, or light brown, with no trace of head or dorsal markings. Max 70 inches (177.8 cm Conant and Collins 1998). The North American racer is a large Iowa species measuring between 23-50 inches (58-127 cm) in length. It is illegal to kill or collect this species by law in Iowa. PROTECTED and Species of Greatest Conservation Need. North American Racer ( Coluber constrictor)īy Jeff LeClere A North American racer, Coluber constrictor, from Louisa County, Iowa.
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