Worm snakes are small snakes, 35 cm (14 in) or less in total length. They are usually a dark brown in color on the upperside, with a lighter-colored, pink or orange underside. They are easily mistaken for other similar species, such as the earth snakes (genus Virginia) and the brown snakes (genus Storeria). They have narrow heads, small eyes, and sharp tail tips. They are not venomous.
Worm snakes are fossorial snakes, and spend the vast majority of their time buried in loose, rocky soil, or under forest leaf litter. They are abundant within their range, but rarely seen due to their secretive nature.
Little is known about their mating habits, but breeding likely occurs in early spring. The eggs are laid in early summer. Clutch size is normally two to five eggs, and hatching takes place in August or September. Hatchlings range in size from 7 to 12 cm (about 3-5 inches).
Species and subspecies
- Carphophis amoenus (Say, 1825) - worm snake
- Carphophis vermis (Kennicott, 1859) - western worm snake
- C. amoenus - Arkansas, eastern Missouri, Louisiana, Mississippi, Alabama, northern Georgia, South Carolina, North Carolina, Tennessee, Virginia, West Virginia, Kentucky, southern Illinois, southern Indiana, southern Ohio, Delaware, New Jersey, Maryland, Pennsylvania, southeastern New York, and Connecticut
- C. vermis - southern Iowa, southeastern Nebraska, eastern Kansas, western Illinois, Missouri, Louisiana, eastern Oklahoma, and northeastern Texas with isolated records from southwestern Wisconsin, and southeastern Arkansas
- Wright, A.H., and A.A. Wright. 1957. Handbook of Snakes of the United States and Canada. Comstock. Ithaca and London. 1,105 pp. (in two volumes) (Genus Carphophis, pp. 104-105, Map 12 + Figure 21 on p. 73.)
- Boulenger, G.A. 1894. Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. Trustees of the British Museum (Natural History) (Taylor and Francis, Printers.) London. xi + 382 pp. + Plates I.- XX. (Genus Carphophis, p. 324.)
- Gervais, P. 1843. In D'Orbigny, Ch. 1843. Dictionnaire Universel d'Histoire Naturelle, Nouvelle Édition. Tome Troisième [volume 3, BRU - CHY]. A. Pilon. Paris. 752 pp. (Carphophis, p. 262.)
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- Illinois Natural History Survey - Carphophis amoenus
- Western worm snake, Carphophis vermis photographs
- Western worm snake - Carphophis vermis Species account from the Iowa Reptile and Amphibian Field Guide
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