Epioblasma propinqua (I. Lea, 1857)

Nearby pearly mussel, Tennessee riffleshell



Taxonomy & Nomenclature

Synonym/s: Dysnomia propinqua I. Lea, 1857; Plagiola propinqua I. Lea, 1857


Conservation Status


Last record: 1901 (Cummings & Cordeiro, 2011)

IUCN status: Extinct



Alabama, Illinois, Indiana, Kentucky, Ohio & Tennessee, USA


Biology & Ecology




35 specimens are in the Illinois Natural History Survey mollusc [url=]collection[/url]:

INHS 1694
INHS 3206
INHS 4752
INHS 4780
INHS 5805
INHS 6019
INHS 6076
INHS 6168
INHS 6260
INHS 6292
INHS 6345
INHS 6426
INHS 6443
INHS 6488
INHS 6727
INHS 8187
INHS 8236
INHS 8294
INHS 11407
INHS 12298
INHS 12509
INHS 12603
INHS 18919
INHS 19027
INHS 19058
INHS 19088
INHS 19113
INHS 19232
INHS 19247
INHS 19349
INHS 20304
INHS 20306
INHS 25210
INHS 41649
INHS 41688






Cicerello, R.R. and Schuster, G.A. 2003. A guide to the freshwater mussels of Kentucky. Kentucky State Nature Preserves Commission Scientific and Technical Series 7(1-62).

Cowie, Robert H., Régnier, Claire, Fontaine, Benoît, and Bouchet, Philippe. (2017). Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41.

Cummings, K.S. 1991. The aquatic mollusca of Illinois. Illinois Natural History Survey bulletin 34: 428-438.

Cummings, K. and Cordeiro, J. (2011a). Epioblasma propinqua. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. ( Downloaded on 22 April 2012.

Cummings, K. and Cordeiro, J. (2011b). Epioblasma propinqua. The IUCN Red List of Threatened Species 2011: e.T7880A12861219. Accessed on 14 June 2022.

Cummings, K.S., Mayer, C.A. and Page, L.M. 1988. Survey of the freshwater mussels (Mollusca: Unionidae) of the Wabash River drainage, phase II: upper and middle Wabash River. Section of Faunistic Survey and Insect Identification. Illinois Natural History Survey.

Graf, Daniel L. and Cummings, Kevin S. (2021). A ‘big data’ approach to global freshwater mussel diversity (Bivalvia: Unionoida), with an updated checklist of genera and species. Journal of Molluscan Studies 87(1): eyaa034.

Haag, Wendell R. (2009). Past and future patterns of freshwater mussel extinctions in North America during the Holocene, pp. 107-128. In: Turvey, Samuel T. (ed.). Holocene Extinctions. Oxford, UK & New York, USA: Oxford University Press. xii + 352 pp.

Johnson, R. D. (1978). Systematics and zoogeography of Plagiola (Dysonomia, Epioblasma) an almost extinct genus of freshwater mussels (Bivalvia: Unionidae) from middle North America. Bulletin of the Museum of Comparative Zoology 148: 239-320.

Mirarchi, R.E., Bailey, M.A., Garner, J.T., Haggerty, T.M., Best, T.L., Mettee, M.F. and O'Neil, P. 2004. Alabama Wildlife. Volume Four: Conservation and Management Recommendations for Imperiled Wildlife. University of Alabama Press, Tuscaloosa, Alabama.

Morrison, J. P. E. (1942). Preliminary report on mollusks found in the shell mounds of the Pickwidk Landing basin in the Tennessee River valley. Bureau of American Ethnology Bulletin 129: 339-392.

Parmalee P.W. and Bogan A.E. 1998. The Freshwater Mussels of Tennessee. University of Tennessee Press, Knoxville Tennessee.

Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.

Williams, James D., Bogan, Arthur E., Butler, Robert S., Cummings, Kevin S., Garner, Jeffrey T., Harris, John L., Johnson, Nathan A. and Watters, G. Thomas. (2017). A revised list of the freshwater mussels (Mollusca: Bivalvia: Unionida) of the United States and Canada. Freshwater Mollusk Biology and Conservation 20: 33-58.

Williams, J.D., Bogan, A.E. and Garner, J.T. 2008. Freshwater Mussels of Alabama and the Mobile Basin in Georgia, Mississippi and Tennessee. University of Alabama Press, Tuscaloosa, Alabama.

Williams, J.D., Warren, M.L.Jr., Cummings, K.S., Harris, J.L. and Neves, R.J. in press. Conservation status of freshwater mussels of North America and Mexico.


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