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Aquatic Mollusks of North Dakota

GIF -- Photos of Shells

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).


Contents


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
Return to table of contents.
Pill clams
Pisidium casertanum
Pisidium compressum
Pisidium ferrugineum
Pisidium nitidum
Pisidium ventricosum
Sphaerium lacustre
Sphaerium simile
Sphaerium striatinum
Sphaerium transversum
Return to table of contents.
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
Return to table of contents.
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(Download) mollusks.zip (720K) -- Aquatic Mollusks of North Dakota
Installation: Extract all files and open index.htm in a web browser.

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