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The Socorro springsnail, scientific name ''Pyrgulopsis neomexicana'', is an endangered species of minute freshwater snail with a gill and an operculum, an aquatic gastropod mollusk or micromollusk in the family Hydrobiidae, the mud snails. This tiny snail previously inhabited a small group of thermal springs in the State of New Mexico, USA. Its survival is seriously endangered because its habitat is both vulnerable and severely threatened. The current status of the population of this snail and its habitat area is unknown. The Socorro springsnail has been listed as endangered by the governments of the United States and New Mexico. Very little is known about this snail in general, because of its minute size, its very restricted range, and the fact that the places where it currently lives are on private property which allows no access. == Taxonomy == The Socorro springsnail was originally described from warm springs in Socorro, New Mexico. The collector and date of the unique first sample are unknown.〔Taylor D. W. 1983. ''Report to the state of New Mexico on a status investigation of mollusks in New Mexico''. New Mexico Department of Game and Fish, Santa Fe, NM.〕 Specimens came from the collection of American mineralogist Charles Moore Wheatley (1822 Essex, England - 1882, Phoenixville, Pennsylvania, U.S.A.) and were likely collected in the 19th century. The species was formally described and named ''Amnicola neomexicana'' by American malacologist (mollusk expert) Henry Augustus Pilsbry in 1916.〔〔 Pilsbry's original type description, the text where the species is officially named and described, reads as follows: In 1982, American zoologist John B. Burch reclassified the Socorro springsnail as ''Fontelicella neomexicana''.〔Burch J. B. 1982. ''Freshwater snails (Mollusca: Gastropoda) of North America''. U.S. Environmental Protection Agency, Coctract No. 68-03-1280, EPA-600/3-82-026, 294 pp.〕 In 1987, two other American zoologists, Robert Hershler from the National Museum of Natural History and Fred Gilbert Thompson from the Florida State Museum (now the Florida Museum of Natural History) assigned members of the genus ''Fontelicella'', including ''F. neomexicana'', to the genus ''Pyrgulopsis''.〔〔Hershler R. & 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.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Socorro springsnail」の詳細全文を読む スポンサード リンク
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