Cryptomastix mullani blandi (Hemphill in Binney, 1892)

Bland Oregonian



Taxonomy & Nomenclature

Hendricks (2012:169) states that the "validity of all subspecies [of Cryptomastix mullani] needs to be reevaluated". While Lucid et al. (2016) caution that this subspecies is probably invalid.


Conservation Status

Invalid (synonym)?

Last record: 1990 (Suckling et al., 2004)



Kootenai County, Idaho, USA


Currently only known from the type locality in Kootenai County, but two morphologically similar individuals have been found elsewhere in Idaho (Lucid et al., 2016).


Biology & Ecology










Original scientific description:

Binney, W. G. (1892). A fourth supplement to the fifth volume of the terrestrial air-breathing mollusks of the United States and adjacent territories. Bulletin of the Museum of Comparative Zoology. 22(4): 163-204, plates 1-4.

Other references:

Frest, T. J. (1999). A Review of the land and freshwater Mollusks of Idaho. Final report to the Idaho Conservation Data Center, Idaho Department of Fish and Game, 600 South Walnut, P.O. Box 25, Boise, Idaho 83707. 281 pp. plus appendices.

Frest, T. J. and Johannes, E. J. (1995). Interior Columbia Basin Mollusk Species of Special Concern. Final Report to Interior Columbia Basin Ecosystem Management Project. Deixis Consultants, 2517 NE 65th St, Seattle, WA 98115. 362 pp.

Hendricks, Paul. (2005). Surveys for animal species of concern in northwest Montana. Section 4: Terrestrial mollusk surveys in northwestern Montana; and section 5: Plum Creek owl and mollusk surveys. Unpublished report to the Montana Department of Fish, Wildlife & Parks, Montana Natural Heritage Program, Helena, Montana, May 2005. 53 pp.

Hendricks, Paul. (2012). A Guide to the Land Snails and Slugs of Montana. A report to the U.S. Forest Service - Region 1. Montana Natural Heritage Program, Helena, MT. vii + 187 pp. plus appendices.

Lucid, M. K., Robinson, L. and Ehlers, S. (2016). Multi-species baseline initiative project report: 2010–2014. Idaho Department of Fish and Game, Coeur d’Alene.

MolluscaBase eds. (2021). MolluscaBase. Cryptomastix mullani blandi (Hemphill in W.G. Binney, 1892). Accessed at: on 2022-03-06

Suckling, Kieran, Slack, Rhiwena and Nowicki, Brian. (2004). Extinct and the Endangered Species Act. Centre For Biological Diversity. 63 pp.


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