Marstonia

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title: "Marstonia" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["hydrobiidae", "gastropod-genera", "marstonia"] description: "Genus of gastropods" topic_path: "general/hydrobiidae" source: "https://en.wikipedia.org/wiki/Marstonia" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of gastropods ::

| image = Marstonia comalensis shell.png | image_caption = shell of Marstonia comalensis | image2 = Pyrgulopsis scalariformis shell.jpg | image2_caption = Apertural view of a shell of Marstonia scalariformis. | taxon = Marstonia | authority = Baker, 1926 | diversity_link = | diversity_ref = | diversity = 16 valid species

Marstonia is a genus of freshwater snails with a gill and an operculum, aquatic gastropod molluscs in the family Hydrobiidae.

Distribution

Species in the genus Marstonia are distributed in springs, streams and lakes in eastern North America. Most of these species have extremely narrow geographic ranges and consequently have become a focus of conservation activities; two are federally listed as endangered and others are variously listed by state wildlife agencies.

Description

The freshwater gastropod genus Marstonia is composed of 15 small (shell height

Species

Eastern North American species of Pyrgulopsis are considered to be in separate genus Marstonia according to Thompson & Hershler (2002).

• Marstonia agarhecta (F. G. Thompson, 1969) - synonym: Pyrgulopsis agarhecta F. G. Thompson, 1969 - Ocmulgee marstonia
• Marstonia arga - F. G. Thompson, 1977 - synonym: Pyrgulopsis arga (F. G. Thompson, 1977) - ghost marstonia
• Marstonia castor F. G. Thompson, 1977 - synonym: Pyrgulopsis castor (F. G. Thompson, 1977) - beaverpond marstonia
• Marstonia halcyon F. G. Thompson, 1977 - synonym: Pyrgulopsis halcyon (F. G. Thompson, 1977) - halcyon marstonia
• Marstonia hershleri (F. G. Thompson, 1995) - synonym: Pyrgulopsis hershleri F. G. Thompson, 1995 - Coosa pyrg
• Marstonia letsoni (Walker, 1901) - synonym: Pyrgulopsis letsoni (Walker, 1901) - gravel pyrg
• Marstonia lustrica (Pilsbry, 1890) - synonym: Pyrgulopsis lustrica (Pilsbry, 1890) - boreal marstonia
• Marstonia ogmorhaphe (F. G. Thompson, 1977) - synonym: Pyrgulopsis ogmoraphe (F. G. Thompson, 1977) - royal springsnail
• Marstonia olivacea (Pilsbry, 1895) - synonym: Pyrgulopsis olivacea (Pilsbry, 1895) - olive marstonia, it may be extinct
• Marstonia ozarkensis (Hinkley, 1915) - synonym: Pyrgulopsis ozarkensis Hinkley, 1915 - Ozark pyrg, it may be extinct
• Marstonia pachyta F. G. Thompson, 1977 - synonym: Pyrgulopsis pachyta (F. G. Thompson, 1977) - armored marstonia
• Marstonia scalariformis (Wolf, 1869) - synonym: Pyrgulopsis scalariformis (Wolf, 1869) - moss pyrg

Other species of Marstonia include:

• Marstonia angulobasis F. G. Thompson, 2005 - angled marstonia
• Marstonia comalensis (Pilsbry & Ferriss, 1906) - Comal siltsnail
• Marstonia gaddisorum F. G. Thompson, 2004 - Gaddis marstonia
• Marstonia inflata H.-J. Wang, 1977

Although Marstonia has been reviewed four times since 1978 (Thompson 1978, Hershler 1994, Thompson & Hershler 2002, Hershler & Liu 2011), three of its congeners have been little studied beyond their original descriptions and their anatomy is unknown. Two of these — Marstonia olivacea, Marstonia ozarkensis — may be extinct and thus will likely remain incertae sedis.

References

This article incorporates CC-BY-3.0 text from the reference

References

1. Baker H. B. (1926). ''[[Trans. Wisconsin Acad. Sci. Arts]]'' '''22''': 195.
2. MolluscaBase eds. (2021). MolluscaBase. Marstonia F. C. Baker, 1926. Accessed at: http://molluscabase.org/aphia.php?p=taxdetails&id=719377 on 2023-10-25
3. Hershler R. (1994). "A review of the North American freshwater snail genus ''Pyrgulopsis'' (Hydrobiidae)". ''[[Smithsonian Contributions to Zoology]]'' '''554''': 1-115. [http://si-pddr.si.edu/dspace/bitstream/10088/5139/2/SCtZ-0554-Lo_res.pdf PDF] {{Webarchive. link. (2011-07-18 .)
4. ''Marstonia'' http://www.natureserve.org accessed 25 July 2009. (See "Concept References" in each ''Marstonia'' species.)
5. "Archived copy".
6. Hershler R. & Liu H.-P. (2011). "Redescription of ''Marstonia comalensis'' (Pilsbry & Ferriss, 1906), a poorly known and possibly threatened freshwater gastropod from the Edwards Plateau region (Texas)". ''[[ZooKeys]]'' '''77''': 1-16. {{doi. 10.3897/zookeys.77.935

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