E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia

Haplotrema vancouverense (I. Lea, 1839)
Robust Lancetooth
Family: Haplotrematidae
Species account author: Robert Forsyth.
Photo of species

© Robert Forsyth  Email the photographer   (Photo ID #7362)

E-Fauna BC Static Map
Distribution of Haplotrema vancouverense in British Columbia
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Species Information

Shell large, disc-shaped; greenish-yellow, olive-greenish or brown; growth lines and microscopic spiral striae but sculpture not beaded; apertural lip slightly straightened but not conspicuously ?drooping?.


Snails belonging to the family Haplotrematidae are omnivores. Prey includes earthworms, slugs and snails.


This species is common in forests, where it lives under rocks, logs and moss, or deep in forest litter. It is also observed in purely coniferous forests where other large snails are infrequent or absent (Forsyth 2004). Along the BC coast, this species occurs at generally lower elevations (below about 460 m).


W North America



Genus from the Greek "haplos" (simple) and "trema" (aperture or hole); the gender is neuter. The species was named for Fort Vancouver, now Vancouver, Washington, where presumably it was first collected.

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
NativeS5YellowNot Listed
BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Additional Range and Status Information Links

Additional Photo Sources

General References

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2021. E-Fauna BC: Electronic Atlas of the Fauna of British Columbia [efauna.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-03-04 7:08:40 PM]
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