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Bostryx turritus
''Bostryx turritus'' is a species of tropical air-breathing land snail, a pulmonate gastropod mollusk in the family Bulimulidae.
== Distribution ==
* Peru〔Breure A. S. H. & Mogollón Avila V. (2010). "Well-known and little-known: miscellaneous notes on Peruvian Orthalicidae (Gastropoda, Stylommatophora)". ''Zoologische Mededelingen'' 84. (HTM ).〕
This species was known from Trujillo Province in La Libertad Region (Pilsbry, 1896)〔Pilsbry H. A. (1895-1896). "American Bulimi and Bulimuli. ''Strophocheilus'', ''Plekocheilus'', ''Auris'', ''Bulimulus''. ''Manual of Cochology'' (2)10: 1-213.〕 and Pariacoto in Ancash Region (Haas, 1955).〔〔Haas F. (1955). "On non-marine shells from northeastern Brazil and Peru". ''Fieldiana Zoology'' 37: 303-337.〕 Recently, Ramírez (2004)〔Ramírez R. (2004). "Sistemática e filogeografia dos moluscos do ecosistema de ‘lomas’ do desierto da costa central do Peru". Unpublished PhD thesis: i-xxi, 1-165. PUCRS, Porto Alegre.〕 reported it from Cerro Pasamayo and Salinas de Huacho in Lima Region.〔 She also refers to unpublished data by Weyrauch, who collected the species at Cerro Campana, 14 km north of Trujillo 07°58’54’S 079°06’24’W (selected as type locality by Ramírez) and near Chilete in Cajamarca Region.〔 Breure (1978)〔Breure A. S. H. (1978). "Notes on and descriptions of Bulimulidae (Mollusca, Gastropoda)". ''Zoologische Verhandelingen'' Leiden 164: 1-255.〕 reported the species from the same department near Magdalena.〔 Breure (2010)〔 reported it from Catzcal 1050 m, 09°54’43’S 077°49’40’W, Ancash Region, Peru.〔
Zilch (1953)〔Zilch A. (1953). "Landschnecken aus Peru". ''Archiv für Molluskenkunde'' 82: 49-61.〕 reports ''Bostryx turritus turritus'' (shell height/shell width = 3.25) from Hacienda El Casa Grande (probably near 07°40’S 078°40’W) in La Libertad Region, and described ''Bostryx turritus tamboensis'' (shell height/shell width = 2.87) from the same locality, albeit from different elevations (1500 m resp. 1000 m).〔 According to Haas (1955)〔 – reporting a locality at 1360 m – his shells ‘are slightly more slender than the typical form’.〔 The specimens from Catzcal show a variation in ration shell height/shell width from 2.84 to 3.18 (mean 3.00; n = 7).〔 It is possible that this variation can also be found in the populations at the localities in La Libertad, in which case ''Bostryx turritus tamboensis'' should be considered a synonym of the nominate taxon.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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