Marstonia ozarkensis (Hinkley, 1915)

Ozark pyrg



Taxonomy & Nomenclature

Synonym/s: Pyrgulopsis ozarkensis Hinkley, 1915


Conservation Status


Last record: 1997

IUCN RedList status: Critically Endangered (Possibly Extinct)



Arkansas & Missouri, USA


Biology & Ecology










Arkansas Game and Fish Commission. 2004. Arkansas endangered, threatened and species of special concern.

Cordeiro, J. and Perez, K. (2012). Marstonia ozarkensis. The IUCN Red List of Threatened Species. Version 2014.3. ( Downloaded on 09 May 2015.

Cordeiro, J. & Perez, K. 2012. Marstonia ozarkensis. The IUCN Red List of Threatened Species 2012: e.T18980A1938533. Accessed on 07 July 2022.

Gordon, M.E. 1980. Recent mollusca of Arkansas with annotations to systematics and zoogeography. Arkansas Academy of Science Proceedings 34: 58-62.

Hershler, R. 1994. A review of the North American freshwater snail genus Pyrgulopsis (Hydrobiidae). Smithsonian Contributions to Zoology 554: 1-124.

Hershler, R. and Thompson, F.G. 1987. North American Hydrobiidae (Gastropoda: Rissoacea): redescription and the systematic relationships of Tryonia Stimpson, 1865 and Pyrgulopsis Call and Pilsbry, 1886. The Nautilus 101(1): 25-32.

Hershler, R. & Liu, H-P. 2011. Redescription of Marsonia comalensis (Pilsbry & Ferriss, 1906), a poorly known and possibly threatened freshwater gastropod from the Edwards Plateau region (Texas). ZooKeys 77: 1-16.

Robison, H.W. and Smith, K.L. 1982. The endemic flora and fauna of Arkansas. Arkansas Academy of Science proceedings 34: 52-57.

Thompson, F.G. and Hershler, R. 2002. Two genera of North American freshwater snails: Marstonia Baker, 1926, resurrected to generic status, and Floridobia, new genus (Prosobranchia: Hydrobiidae: Nymphophilinae). The Veliger 45(3): 269-271.

Wu, S-K, Oesch, R.D. and Gordon, M.E. 1997. Missouri aquatic snails. Natural history series, no 5. Department of Conservation, Jefferson, Missouri.


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