Pleurobema johannis I. Lea, 1859

Alabama pigtoe

Taxonomy & Nomenclature

Now considered a synonym of P. perovatum (Williams et al., 2017; Graf & Cummings, 2021, 2025; MolluscaBase eds., 2025).

Conservation Status

Invalid (synonym of P. perovatum) (Williams et al., 2017; Graf & Cummings, 2021, 2025; MolluscaBase eds., 2025)

IUCN RedList status: Synonym of P. perovatum

Distribution & Habitat

Alabama, USA

Biology & Ecology

Hypodigm

Media

References

Original scientific description:

Lea, I. (1859). Descriptions of twelve new species of uniones, from Georgia. Proceedings of the Academy of Natural Sciences of Philadelphia. 11: 170-172. [after 28 June 1859; before 10 January 1860]

Other references:

Baillie, J. and Groombridge, B. (eds). (1996). 1996 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Bogan, Arthur E. (Mollusc Specialist Group). (2000). Pleurobema johannis. The IUCN Red List of Threatened Species 2000: e.T17686A7319177. https://dx.doi.org/10.2305/IUCN.UK.2000.RLTS.T17686A7319177.en. Accessed on 20 June 2022.

Bogan, A. and Cummings, K. (2012). Pleurobema perovatum. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. (http://www.iucnredlist.org). Downloaded on 19 July 2013.

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.

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 (36 pp.). https://doi.org/10.1093/mollus/eyaa034

Graf, Daniel L. and Cummings, Kevin S. (2025). The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves). MUSSEL Project Web Site, https://www.mussel-project.net/. Accessed 6 July 2025.

Hilton-Taylor, Craig. (2000). 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK.

MolluscaBase eds. (2025). MolluscaBase. Pleurobema perovatum (Conrad, 1834). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=857366 on 2025-07-06

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.

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