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Haplotrema vancouverense (I. Lea, 1839)
Robust Lancetooth
Family: Haplotrematidae
Species account author: Robert Forsyth.
Introduction to the Land Snails of BC

Photograph

© Robert Forsyth     (Photo ID #7362)

Map

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Distribution of Haplotrema vancouverense in British Columbia in British Columbia

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?.

Biology


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

Habitat


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).

Distribution


W North America

Notes


Etymology

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)		COSEWIC
NativeS5YellowNot Listed



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