Alzoniella is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the subfamily Islamiinae of the family Hydrobiidae.MolluscaBase eds. (2024). MolluscaBase. Alzoniella Fo. Giusti & Bodon, 1984. Accessed through: World Register of Marine * At: https://www.marinespecies.org/aphia.php?p=taxdetails&id=475215 on 2024-09-25
Description All the species within the snail genus Alzoniella are crenobiotic, i.e. they are dependent on springs as a habitat. Some are stygobiont, i.e. living exclusively in underground rivers. They are tiny to minute, usually with delicate, elongated, white or translucent shells. The conical to cylindrical-conical shells often have smooth or finely striated surfaces, and the three to four whorls are quite convex (except the body whorl) with deep sutures.Introduction to crenophile, crenobiont, stygophile and stygobiont shelled mollusca of continental France
Distribution Alzoniella is primarily found in Europe (mainly in Spain), often in very localized, isolated habitats, with some species restricted to underground freshwater habitats such as specific springs or cave systems.
Species The genus Alzoniella contains the following species: Alzoniella asturica (Boeters & Rolán, 1988) Alzoniella bergomensis Pezzoli, 2010 Alzoniella borberensis Bodon & Cianfanelli, 2022 Alzoniella braccoensis Bodon & Cianfanelli, 2004 Alzoniella calorensis Cianfanelli & Bodon, 2017 Alzoniella camocaensis Rolán & Boeters, 2015 Alzoniella cantabrica (Boeters, 1983) Alzoniella cervarensis Cianfanelli, Talenti, Nardi & Bodon, 2019 Alzoniella cornucopia (De Stefani, 1880) Alzoniella delmastroi Bodon & Cianfanelli, 2004 Alzoniella edmulndi (Boeters, 1984) Alzoniella fabrianensis (Pezzoli, 1969) Alzoniella feneriensis Fo. Giusti & Bodon, 1984 Alzoniella finalina Giusti & Bodon, 1984 Alzoniella galaica (Boeters & Rolán, 1988) Alzoniella haicabia Boeters, 2000 Alzoniella hartwigschuetti (Reischütz, 1983) Alzoniella iberopyrenaica Arconada, Rolán & Boeters, 2007 Alzoniella isoensis Bodon & Cianfanelli, 2022 Alzoniella junqua Boeters, 2000 Alzoniella katagabriellae Varga, 2021 Alzoniella ligustica (Fo. Giusti & Bodon, 1981) Alzoniella lucensis (Rolán, 1993) Alzoniella lunensis Bodon & Cianfanelli, 2002 Alzoniella macrostoma Bodon & Cianfanelli, 2002 Alzoniella manganellii Bodon, Cianfanelli & Talenti, 1997 Alzoniella marianae Arconada, Rolán & Boeters, 2007 Alzoniella microstoma Bodon & Cianfanelli, 2002 Alzoniella montana (Rolán, 1993) Alzoniella murita Boeters, 2003 Alzoniella navarrensis Boeters, 1999 onatensis Boeters, 2003 Alzoniella ovetensis (Rolán, 1993) Alzoniella parvula (Fo. Giusti & Bodon, 1981) Alzoniella perrisii (Dupuy, 1851) Alzoniella pyrenaica Boeters, 1983 Alzoniella rolani (Boeters, 1986) Alzoniella sigestra Fo. Giusti & Bodon, 1984 Alzoniella slovenica (Ložek & Brtek, 1964) Alzoniella somiedoensis Rolán, Arconada & Boeters, 2009 Alzoniella tanagrensis Cianfanelli & Bodon, 2017
Synonyms Alzoniella (Navarriella) Boeters, 2000 : synonym of Navarriella Boeters, 2000 (superseded combination) Alzoniella elliptica (Paladilhe, 1874) : synonym of Navarriella elliptica (Paladilhe, 1874) (superseded combination) Alzoniella pellitica Arconada, Rolán & Boeters, 2007: synonym of Navarriella elliptica (Paladilhe, 1874) (junior subjective synonym)
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