Western Glass-snail

Vitrina pellucida

General Status Rank: 
Undetermined
Common Name: 
Western Glass-snail
Scientific Name: 
Vitrina pellucida
Taxonomy
Group: 
Mollusc (Terrestrial Mollusc)
Kingdom: 
Animalia
Phylum: 
Mollusca
Class: 
Gastropoda
Order: 
Stylommatophora (Superorder Eupulmonata)
Family: 
Vitrinidae
Distribution

Distribution

Very small, < 100 km² but definitely not representative of the species in NT. Species range extent expected to be at least 900,000 km². Many more occurrences are expected but NT is under-surveyed for terrestrial molluscs
References: 

Number of Occurrences

3 occurrences, but all within a small area. Not representative of the species in NT. Expected throughout at least boreal areas. Recent collection: Left bank, Hay River, just upstream from Alexandra Falls (2013)
References: 
General Status Rank
Rank: 
Undetermined
Status Rank Description: 
This is a widespread species in W Canada, which also occurs across the Palaearctic. It and Vitrina angelicae are often confused; separation of these species are by reproductive anatomy, and while NT records have yet to be confirmed anatomically, it is likely this species, not V. angelicae. It is a generalist, found mostly in open habitats, but also sometimes in open woods. Although recorded from NT from only a few sites, NT is under-surveyed for terrestrial molluscs and many additional records are expected.
S Rank: 
SU
Decision Process Description: 
Draft ranks from Robert Forsyth 2015
Last Updated: 
November 8, 2016

References

Number of Occurrences

  • Gerry Mackie, Dwayne A.W. Lepitzki, Robert Forsyth (2015) e-copy - H311 Return

Range Extent

  • Gerry Mackie, Dwayne A.W. Lepitzki, Robert Forsyth (2015) e-copy - H311 Return