Alzoniella is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the subfamily Islamiinae of the family Hydrobiidae.
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.
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 <small>(Boeters & Rolán, 1988)</small>
- Alzoniella bergomensis <small>Pezzoli, 2010</small>
- Alzoniella borberensis <small>Bodon & Cianfanelli, 2022</small>
- Alzoniella braccoensis <small>Bodon & Cianfanelli, 2004</small>
- Alzoniella calorensis <small>Cianfanelli & Bodon, 2017</small>
- Alzoniella camocaensis <small>Rolán & Boeters, 2015</small>
- Alzoniella cantabrica <small>(Boeters, 1983)</small>
- Alzoniella cervarensis <small>Cianfanelli, Talenti, Nardi & Bodon, 2019</small>
- Alzoniella cornucopia <small>(De Stefani, 1880)</small>
- Alzoniella delmastroi <small>Bodon & Cianfanelli, 2004</small>
- Alzoniella edmulndi <small>(Boeters, 1984)</small>
- Alzoniella fabrianensis <small>(Pezzoli, 1969)</small>
- Alzoniella feneriensis <small>Fo. Giusti & Bodon, 1984</small>
- Alzoniella finalina <small>Giusti & Bodon, 1984</small>
- Alzoniella galaica <small>(Boeters & Rolán, 1988)</small>
- Alzoniella haicabia <small>Boeters, 2000</small>
- Alzoniella hartwigschuetti <small>(Reischütz, 1983)</small>
- Alzoniella iberopyrenaica <small>Arconada, Rolán & Boeters, 2007</small>
- Alzoniella isoensis <small>Bodon & Cianfanelli, 2022</small>
- Alzoniella junqua <small>Boeters, 2000</small>
- Alzoniella katagabriellae <small>Varga, 2021</small>
- Alzoniella ligustica <small>(Fo. Giusti & Bodon, 1981)</small>
- Alzoniella lucensis <small>(Rolán, 1993)</small>
- Alzoniella lunensis <small>Bodon & Cianfanelli, 2002</small>
- Alzoniella macrostoma <small>Bodon & Cianfanelli, 2002</small>
- Alzoniella manganellii <small>Bodon, Cianfanelli & Talenti, 1997</small>
- Alzoniella marianae <small>Arconada, Rolán & Boeters, 2007</small>
- Alzoniella microstoma <small>Bodon & Cianfanelli, 2002</small>
- Alzoniella montana <small>(Rolán, 1993)</small>
- Alzoniella murita <small>Boeters, 2003</small>
- Alzoniella navarrensis <small>Boeters, 1999</small>
- onatensis <small>Boeters, 2003</small>
- Alzoniella ovetensis <small>(Rolán, 1993)</small>
- Alzoniella parvula <small>(Fo. Giusti & Bodon, 1981)</small>
- Alzoniella perrisii <small>(Dupuy, 1851)</small>
- Alzoniella pyrenaica <small>Boeters, 1983</small>
- Alzoniella rolani <small>(Boeters, 1986)</small>
- Alzoniella sigestra <small>Fo. Giusti & Bodon, 1984</small>
- Alzoniella slovenica <small>(LoÃ
¾ek & Brtek, 1964)</small>
- Alzoniella somiedoensis <small>Rolán, Arconada & Boeters, 2009</small>
- Alzoniella tanagrensis <small>Cianfanelli & Bodon, 2017</small>
Synonyms:
- Alzoniella (Navarriella) <small>Boeters, 2000</small> : synonym of Navarriella <small>Boeters, 2000</small> (superseded combination)
- Alzoniella elliptica <small>(Paladilhe, 1874)</small> : synonym of Navarriella elliptica <small>(Paladilhe, 1874)</small> (superseded combination)
- Alzoniella pellitica <small>Arconada, Rolán & Boeters, 2007</small>: synonym of Navarriella elliptica <small>(Paladilhe, 1874)</small> (junior subjective synonym)
References
External links