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From Wikipedia, the free encyclopedia

Carphophis
Carphophis vermis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Subfamily: Dipsadinae
Genus: Carphophis
Gervais, 1843
Synonyms

Brachyorrhos, Calamaria, Carphophiops, Celuta, Coluber[1]

Carphophis (common name worm snakes) is a genus of small colubrid snakes endemic to the United States. The genus consists of two species, one of which has two subspecies.[2]

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  • Eastern worm snake (Carphophis amoenus amoenus)

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Description

Worm snakes are small snakes, 35 cm (14 in) or less in total length (including tail). The males are shorter than the females.[2] Both sexes are usually a dark brown in color on the upperside, with a lighter-colored, pink or orange underside. Both species are cylindrical and unpatterned, with a pointed head and small black eyes.[2] They are easily mistaken for other similar species, such as the earth snakes (genus Virginia) and the brown snakes (genus Storeria). Worm snakes have narrow heads, sharp tail tips, and are not venomous.

Behavior

Worm snakes are fossorial snakes, and spend the vast majority of their time buried in loose, rocky soil, or under forest leaf litter. They predominantly reside in cool, moist soils next to streams, hilly woodlands, pine forest stands, partially grassy woodsides, and farmland bordering woodlands.[3] These species have fairly small home ranges (253 square meters) and the daily activity is from 3-6pm.[4] It was seen that most periods of activity were for less than 12 hours, while the periods of inactivity can range from a few minutes to over two weeks.[5] Worm snakes are abundant within their ranges, but rarely seen due to their secretive nature. Studies have shown that if these species are displaced, there is no homing ability that is exhibited.[6]

Reproduction

Little is known about the mating habits of worm snakes, 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). The young can mature within three years.[7]

Diet

Worm snakes eat almost entirely earthworms, and other annelids. Studies have shown that they have consumed soft-bodied insects and other invertebrate prey.[8]

Predation

Worm snakes are a common food source for ophiophagous snake species, such as the coral snakes, Micrurus fulvius and Micrurus tener, in areas in which they are sympatric. They can also be threatened by opossums, shrews, and moles, as well as birds.[9]

Species and subspecies

Nota bene: A binomial authority or trinomial authority in parentheses indicates that the species or subspecies was originally described in a genus other than Carphophis.

Geographic distribution

References

  1. ^ 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.)
  2. ^ a b c Ernst, Carl; Orr, John; Creque, Terry (2013). "Carphophis amoenus " (PDF). Catalogue of American Amphibians and Reptiles. 774: 1–7. Retrieved 23 April 2023.
  3. ^ Diefenbacher, Eric H.; Pauley, Thomas K. (1 December 2014). "Notes on the Distribution and Natural History of the Eastern Wormsnake (Carphophis amoenus amoenus) in West Virginia". Reptiles & Amphibians. 21 (4): 120–124.
  4. ^ Orr, John Mullins (2006). "Microhabitat use by the eastern worm snake, Carphophis amoenus" (PDF). Herpetological Bullitin. 97: 29. Retrieved 23 April 2023.
  5. ^ Barbour, Roger W.; Harvey, Michael J.; Hardin, James W. (May 1969). "Home Range, Movements, and Activity of the Eastern Worm Snake, Carphophis Amoenus Amoenus". Ecology. 50 (3): 470–476. Retrieved 23 April 2023.
  6. ^ Russell, Kevin R.; Hanlin, Hugh G. (1999). "Aspects of the Ecology of Worm Snakes (Carphophis amoenus) Associated with Small Isolated Wetlands in South Carolina". Journal of Herpetology. 33 (2): 339–344. Retrieved 23 April 2023.
  7. ^ Behler, John L. (1985). The Audubon Society field guide to North American reptiles and amphibians. New York: Alfred A. Knopf. ISBN 0394508246. Retrieved 23 April 2023.
  8. ^ Diefenbacher, Eric H.; Pauley, Thomas K. (1 December 2014). "Notes on the Distribution and Natural History of the Eastern Wormsnake (Carphophis amoenus amoenus) in West Virginia". Reptiles & Amphibians. 21 (4): 120–124. Retrieved 23 April 2023.
  9. ^ Conant, Roger (1998). A field guide to reptiles & amphibians : eastern and central North America (3rd, expanded ed.). Boston: Houghton Mifflin. ISBN 978-0395904527. Retrieved 23 April 2023.

Further reading

  • Boulenger, G.A. (1894). Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xi + 382 pp. + Plates I–XX. (Genus Carphophis, p. 324.)
  • Gervais, P. (1843). In: D'Orbigny, [A]. (1843). Dictionnaire Universel d'Histoire Naturelle, Nouvelle Édition. Tome Troisième [volume 3, BRU - CHY]. Paris: A. Pilon. 752 pp. (Carphophis, new genus, p. 262.)

External links


This page was last edited on 15 October 2023, at 20:29
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