A “pulmonate” snail, this species have evolved their mantle cavity into a lung (instead of gills as still found in some snails). Breathing is through a single opening on the right side of the body which either remains open or opens and closes. Shell diameter 2.8-3.5 cm, shell diameter is 1.4 to 1.7 times shell height. One of the largest land snails in BC, the shell has 5 to 6 whorls (spirals) with lighter colored axial ribs (thin bands that cross each whorl). The uppermost whorls are often pale from wear. Shell colour ranges from gold to dark brown, lightening to amber around the aperture (shell opening). As the snail matures the shell can become bleached looking and begin to flake. This species lacks the ‘hairs’ found on the shell of other land snail species. The thick white aperture lip of adult snails is evident when viewing the snail from below; juveniles lack this thickened aperture lip.
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Prepared by: Pamela Zevit for the South Coast Conservation Program (SCCP), and Kristiina Ovaska and Lennart, Sopuck Biolinx Environmental, in partnership with: International Forest Products (Interfor), Capacity Forestry (CapFor). Funding was made possible through the Sustainable Forestry Initiative (SFI): http://www.sfiprogram.org/ Updated and revised by: Isabelle Houde, RPBio in consultation with the SCCP. Part of the National Conservation Plan, this project was undertaken with the financial support of the Government of Canada. Dans le cadre du Plan de Conservation National, ce projet a été réalisé avec l’appui financier du Gouvernement du Canada. Every effort has been made to ensure content accuracy. Comments or corrections should be directed to the South Coast Conservation Program: firstname.lastname@example.org. Content updated March 2015. Image Credits: Oregon Forestsnail: Ryan Durand, Oregon Forestsnail (morph): Gord Gadsden, European Grove Snail: Pamela Zevit, Habitat: Ryan Durand. Only images sourced from “creative commons” sources (e.g. Wikipedia, Flickr, U.S. Government) can be used without permission and for non-commercial purposes only. All other images have been contributed for use by the SCCP and its partners/funders only.