BC Conservation Data Centre: Conservation Status Report
Cryptomastix mullani
Coeur d'Alene Oregonian
| Scientific Name: | Cryptomastix mullani |
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| English Name: | Coeur d'Alene Oregonian |
| Provincial Status Summary | |
| Status: | S3S4 |
| Date Status Assigned: | January 14, 2025 |
| Date Last Reviewed: | January 14, 2025 |
| Reasons: | This species in found within a relatively limited area and habitat within southeast BC. Within this area it is encountered relatively regularly in appropriate habitat. |
| Range | |
| Range Extent: | F = 20,000-200,000 square km |
| Range Extent Comments: | The known range extent is approximately 29,000 kmē in southeast BC, from Sicamous and Revelstoke areas, south to Christina Lake and Eastport and Moyie River (Ovaska et al 2019; INaturalist; accessed 17 October 2024; GBIF; accessed 17 October 2024). |
| Area of Occupancy (km2): | U = Unknown |
| Occurrences & Population | |
| Number of Occurrences: | CD = 21 - 300 |
| Comments: | There are 63 observations in the appropriate area in iNaturalist (accessed 17 October 2024), 39 mapped in Ovaska et al. (2019) and Forsyth estimated "greater than 45" (2014). Given that they are found relatively frequently when searched for it is possible that there are more than 80 occurrences, thus the range estimate. |
| Number of Occurrences with Good Viability / Ecological Integrity: | Rank Factor not assessed |
| Number of Occurrences Appropriately Protected & Managed: | Rank Factor not assessed |
| Population Size: | U = Unknown |
| Threats (to population, occurrences, or area affected) | |
| Degree of Threat: | U = Unknown |
| Comments: | The threats to this species have not been quantified or assessed, however within the areas where found disturbance to the forested slopes could be via logging, mining, recreation or development. Extreme drought may also be a threat. |
| Trend (in population, range, area occupied, and/or condition of occurrences) | |
| Short-Term Trend: | U = Unknown |
| Long-Term Trend: | U = Unknown |
| Other Factors | |
| Intrinsic Vulnerability: | Rank Factor not assessed |
| Environmental Specificity: | BC=Narrow to moderate. |
| Comments: | This species has been predominantly in the ICH (Interior Coastal Hemlock) (Ovaska et al. 2019), specifically mainly on forested, rocky slopes (Nekola et al. 2011). Found in relatively undisturbed forests (Forsyth 2014). |
| Other Rank Considerations: | |
| Information Gaps | |
| Research Needs: | |
| Inventory Needs: | |
| Stewardship | |
| Protection: | |
| Management: | |
| Version | |
| Author: | Ramsay, L. (2024), Forsyth, R. and L. Gelling (2015) |
| Date: | October 16, 2024 |
| References | |
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Forsyth, R. 2014. General Status rank assessment of the terrestrial molluscs of British Columbia. Prepared for Canadian Wildlife Service, Environment Canada. Gatineau, PQ.
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Forsyth, R.G. 2004. Land snails of British Columbia. University of British Columbia Press. Vancouver, BC. 176pp.
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GBIF.org. 2024n. GBIFn. Occurrence download for Cryptomastix mullani. Accessed 17 October 2024.
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iNaturalist community. 2024f Observations of Cryptomastix mullani from British Columbia, Canada observed. Exported from https://www.inaturalist.org on 17 October 2024.
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Nekola, J., Coles, B. and Horsak, M., 2011. Land snail biodiversity assessment for the Selkirk Mountains Park region in southeastern British Columbia. Unpublished report. Valhalla Wilderness Society, New Denver, British Columbia, Canada.
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Ovaska, K., L. Sopuck, and J. Heron. 2019. Surveys for terrestrial gastropods in the Kootenay region of British Columbia, with new records and range extensions. Canadian Field-Naturalist 133(3): 221?234.
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Please visit the website Conservation Status Ranks for information on how the CDC determines conservation status ranks. For global conservation status reports and ranks, please visit the NatureServe website http://www.natureserve.org/.
Suggested Citation:
B.C. Conservation Data Centre. 2024. Conservation Status Report: Cryptomastix mullani. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 5, 2026).