BC Species Summary
BC Conservation Status Report
Mapped Known Locations
E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia
Environment Canada's Species at Risk Website
Global Comprehensive Report (NatureServe Explorer)
COSEWIC. 2010e. COSEWIC Assessment and Status Report on the Threaded Vertigo (Nearctula sp.) in Canada. Committe on the Status of Endangered Wildlife in Canada. Ottawa. x + 36 pp.
COSEWIC. 2022e. COSEWIC status appraisal summary on the Threaded Vertigo Vertigo rowellii in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. xvii pp.
Environment and Climate Change Canada. 2019b. Management Plan for the Threaded Vertigo (Nearctula sp.) in Canada. Species at Risk Act Management Plan Series. Environment and Climate Change Canada, Ottawa. 2 parts, 4 pp. + 42 pp.
Cross-Linked Information Resources (CLIR): an umbrella search web application that allows users to use a single window to simultaneously search six provincial environmental and natural resource information e-libraries and provides access to digital documents in these e-libraries.
B.C. Conservation Data Centre Images
Google Image Search
