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Discus whitneyi, Tyhee Lake

Discus whitneyi, Tyhee Lake, near Telkwa, BC.

Online database: Bibliography of the Terrestrial Molluscs of Canada

News and General Information

Wanted: leaf litter samples from anywhere in Canada
While the minute land molluscs that dwell in leaf litter are a major component of the terrestrial mollusc fauna of Canada, they have historically been neglected in many parts of Canada. Their small size has usually meant that they have been overlooked by all but the most dedicated naturalists and malacologists. Many gaps in our knowledge of these animals is the direct result of insufficient collections from almost all regions of the country. I am looking for donations of leaf litter samples (each 1–2 L in volume), or drift samples containing terrestrial species from anywhere in Canada. More information here.

Interactive maps at E-Fauna BC
October 2011 — New and updated data have been uploaded to E-Fauna BC, the Electronic Atlas of the Wildlife of British Columbia. Records are now available for terrestrial gastropods.

Need a mollusc identified?
Do you require identifications made of land snails or slugs? I can do these from specimens, or often from photographs. Please contact me for more information. I frequently help photographers, naturalists and others identify slugs and snails in their photos — just ask! Contact me here.

Latest Post

NWT snails 1

Cochlicopa lubrica & Pupilla hudsoniana

Cochlicopa lubrica (left) and Pupilla hudsoniana.

This post begins a series that will cover the land snails of the Northwest Territories, Canada.

Cochlicopa lubrica. Waiting for the rest of the group to finish, and scratching around in the hope to find something, I found this specimen, one of several, around the roots at the base of a tuft of grasses, in a grassy/sedgy swale parallel to the Fort Smith Hwy 5 but also on the highway’s shoulder.

Pupilla hudsoniana. Among the small pupilloids in the NWT is P. hudsoniana. Until recently, this species has been called Pupilla hebes (e.g., Forsyth 2004), and before that P. muscorum of some authors.  A calciphicole (or calciphile), this species is probably common along the Hay River. This specimen was from a dry slope in leaf litter and broken limestone along the river.


Hay River near Alexandra Falls, NWT.