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Aquatic Mollusks of North Dakota

Legend: A filled square indicates a collecting site where live specimens were collected. An empty square denotes a site where only empty shells were observed.

Disclaimer: The maps shown were created by graphically displaying data presented in the appendix of Cvancara (1983). They may differ from those presented in the text of that report.

Aquatic mollusks were searched for at 298 stations, 35 of which were re-examined once. Most of the fieldwork was done during 1965-69, with supplemental collecting and re-examination of previous stations in 1970, 1973, 1974, and 1976. Information on 44 species is included.

This resource is based on the following source:

Cvancara, Alan M. 1983. Aquatic mollusks of North Dakota. North Dakota Geological Survey, Report of Investigation No. 78. 141pp.

This resource should be cited as:

Cvancara, Alan M. 1983. Aquatic mollusks of North Dakota. North Dakota Geological Survey, Report of Investigation No. 78. Jamestown, ND: Northern Prairie Wildlife Research Center Online. http://www.npwrc.usgs.gov/resource/inverts/mollusks/index.htm (Version 15AUG97).

Mussels
Pill Clams
Snails

Mussels: Amblema plicata; Anodonta grandis; Anodontoides ferussacianus; Fusconaia flava; Lampsilis ovata; Lampsilis radiata; Lasmigona complanata; Lasmigona compressa; Ligumia recta; Proptera alata; Proptera laevissima; Quadrula quadrula; Strophitus undulatus

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Pill clams: Pisidium casertanum; Pisidium compressum; Pisidium ferrugineum; Pisidium nitidum; Pisidium ventricosum; Sphaerium lacustre; Sphaerium simile; Sphaerium striatinum; Sphaerium transversum

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Snails: Valvata tricarinata; Amnicola limosa; Armiger crista; Cincinnatia cincinnatiensis; Ferrissia rivularis; Fossaria obrussa; Gyraulus circumstriatus; Gyraulus parvus; Helisoma anceps; Helisoma trivolis; Lymnaea stagnalis; Physa gyrina; Physa integra; Physa jennessi; Planorbula armigera; Aplexa hypnorum; Planorbula campestris; Probythinella lacustris; Promenetus exacuous; Promenetus umbilicatellus; Stagnicola caperata; Stagnicola elodes

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mollusks.zip (720K) -- Aquatic Mollusks of North Dakota

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Aquatic Mollusks of North Dakota

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