Reptiles

Amphibians

Red Cornsnake (Pantherophis guttatus)

Description

This medium-sized snake is patterned with a series of large, alternating brownish to reddish blotches on a lighter gray, brown, or reddish background. These blotches are often bordered in black. A spearhead shape marks the top of the head. The belly is checkered black and white, giving it an appearance of maize. (Thus "corn snake".)

This species was long considered the same species as the Great Plains Ratsnake and newly recognized Slowinski's Cornsnake. Recently, these "variations" have been elevated to full species status. In Arkansas, their ranges do not overlap.

While superficially this species resembles the Prairie Kingsnake, the spearhead marking present on the head of the Red Cornsnake is usually sufficient for identification. An imaginary cross-section of this species, as with all of the Ratsnakes, would be shaped like "a loaf of bread" (i.e. rounded top, steep sides, and flat belly).

As young, this species can be distinguished from the Texas Ratsnake by considering the dark bar that runs through each eye. In the Red Cornsnake, this bar extends through the jawline and onto the neck whereas in the Texas Ratsnake the bar extends only to the jawline where it stops abruptly.

This species is also known as the Red Ratsnake.


Habitats

Although not confirmed to occur in Arkansas, in other parts of its range this species is known to utilize a variety of habitats so long as an abundance of rodent prey is available. They may show a preference toward drier, more exposed habitats. Farmlands can provide ideal conditions for this species.


Habits and Life History

The habits of this species are typical of other ratsnakes. During the day, they are likely to hide in unused rodent burrows, under rocks or logs, or in similar spots. Most activity occurs at night or during twilight hours. They are good climbers and seem as much at ease off the ground as on it.

As a staple of the pet trade and subject of extensive field studies, much is known of the reproductive biology of this species (though obviously not in Arkansas). The pattern might be described as a "gold standard" for North American Colubrids: breeding occurs in the spring with females laying eggs in the early summer, hatching occurs in late summer.


Prey and Hunting Techniques

This species is known to consume a variety of warmblooded prey, especially rodents. Birds and their eggs may also fall prey.

An active forager, this species hunts wherever the scent trail leads, whether that be through a rodent burrow or high into a tree. Prey is grasped by the mouth (with sharp, back-turned teeth) and quickly constricted.


Temperament and Defense

Although usually docile, this species may bite and/or musk in defense.


Conservation

As this species is not confirmed to occur in the state, no special status is attributed. In other parts of its range, it is a victim of habitat destruction and overzealous collection. It is a highly popular, well-established, and relatively inexpensive snake of the pet trade. Given the vast variety of color morphs now available from captive bred and born individuals, continued collection from the wild is widely considered unnecessary (even unethical) and should be strongly discouraged.


State Distribution and Abundance

This species ranges just east of Crittenden County, but is not confirmed to occur in the state. In the entirety of its range, it is not known to occur west of the Mississippi River. No Arkansas voucher specimens exist for this species; its abundance is presumed to be zero.

Gallery

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Contributors

  • kaptainkory December 14, 2006, at 10:06 PM (Original Contributor)

Bibliography

  • Behler, J. L., and F. W. King. 1979 (1987). The Audubon Society Field Guide to North American Reptiles and Amphibians. 3rd ed. Alfred A. Knopf, New York. 743 pp.
  • Conant, R., and J. T. Collins. 1998. A Field Guide to Reptiles and Amphibians of Eastern and Central North America. 3rd ed., Expanded. Houghton Mifflin Co., Boston. 616 pp.
  • Irwin, K. J. 2004. Arkansas Snake Guide. Arkansas Game and Fish Commission Pocket Guide. 50 pp.
  • Trauth, S. E., H. W. Robison, and M. V. Plummer. 2004. Amphibians and Reptiles of Arkansas. University of Arkansas Press, Fayetteville. 421 pp.

Discussion

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Page last modified on January 21, 2012, at 09:03 PM