| 词条 | Marstonia ozarkensis |
| 释义 |
| name = Marstonia ozarkensis | image = | status = EX | status_system = IUCN3.1 | status_ref = [1] | image_caption = | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha | superfamilia = Rissooidea | familia = Hydrobiidae | genus = Marstonia | species = M. ozarkensis | binomial = Pyrgulopsis ozarkensis | binomial_authority = Hinkley, 1915 | synonyms = Pyrgulopsis ozarkensis }}Marstonia ozarkensis, common name the Ozark pyrg, was a species of very small or minute freshwater snails with an operculum, aquatic gastropod mollusks in the family Hydrobiidae. This species was endemic to the United States and was presumed extinct by the U.S. Fish and Wildlife Service as of December 2018. [2] This species was named after the Ozarks, a highland region of the United States. References1. ^{{Cite journal | author = Cordeiro, J. | author2 = Perez, K. | last-author-amp = yes | title = Marstonia ozarkensis | journal = The IUCN Red List of Threatened Species | volume = 2012 | page = e.T18980A1938533 | publisher = IUCN | date = 2012 | url = http://www.iucnredlist.org/details/18980/0 | doi = 10.2305/IUCN.UK.2012.RLTS.T18980A1938533.en | access-date = 15 January 2018}} {{Taxonbar|from=Q28321666}}{{Hydrobiidae-stub}}2. ^{{Cite web|url=https://www.fws.gov/southeast/news/2018/12/ozark-snail-species-presumed-extinct-following-science-based-surveys/|title=Ozark snail species presumed extinct following science-based surveys|last=December 18|last2=2018|website=Southeast Region of the U.S. Fish and Wildlife Service|language=en-US|access-date=2018-12-20}} 4 : Molluscs of the United States|Hydrobiidae|Gastropods described in 1915|Taxonomy articles created by Polbot |
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