Summary
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Helicodiscus parallelus, common name the compound coil, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicodiscidae.
Distribution
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Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) It occurs from Texas and Manitoba east to the Atlantic coast of Florida and the Maritimes.
Sources and Credits
- (c) Femorale, some rights reserved (CC BY-NC),
http://www.femorale.com/shellphotos/detail.asp?species=Helicodiscus%20parallelus%20(Say,%201821)
- W. H. Dall (1845-1927), no known copyright restrictions (public domain),
https://upload.wikimedia.org/wikipedia/commons/f/f0/Helicodiscus_parallelus.jpg
- W. H. Dall (1845-1927), no known copyright restrictions (public domain),
https://upload.wikimedia.org/wikipedia/commons/d/d4/Helicodiscus_parallelus_shell.jpg
- (c) Wikipedia, some rights reserved (CC BY-SA),
http://en.wikipedia.org/wiki/Helicodiscus_parallelus
- (c) NatureServe, some rights reserved (CC BY-NC),
http://eol.org/data_objects/30062066
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