Summary ⁴

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 ⁵

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

1. (c) Femorale, some rights reserved (CC BY-NC), http://www.femorale.com/shellphotos/detail.asp?species=Helicodiscus%20parallelus%20(Say,%201821)
2. W. H. Dall (1845-1927), no known copyright restrictions (public domain), https://upload.wikimedia.org/wikipedia/commons/f/f0/Helicodiscus_parallelus.jpg
3. W. H. Dall (1845-1927), no known copyright restrictions (public domain), https://upload.wikimedia.org/wikipedia/commons/d/d4/Helicodiscus_parallelus_shell.jpg
4. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Helicodiscus_parallelus
5. (c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/30062066

More Info

• iNat taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• NBN Atlas
• SeaLifeBase
• World Register of Marine Species

Range Map

(c) NatureServe, some rights reserved (CC-BY-NC)

iNat Map