''Alzoniella'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of minute freshwater spring

snail A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class Gastro ...

s, aquatic

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

s or

micromollusk A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also ...

s in the family

Hydrobiidae Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum; they are in the order Littorinimorpha. Distribution Hydrobiidae are found in much of the world, ...

. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on

spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a ...

s as a habitat.

Species

The genus ''Alzoniella'' contains the following species: *''

Alzoniella asturica ''Alzoniella'' is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on springs as a ...

'' (Boeters & Rolán, 1988) *''

Alzoniella delmastroi ''Alzoniella'' is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on springs as a ...

'' Bodon & Cianfanelli, 2004 *''

Alzoniella edmundi ''Alzoniella edmundi'' is a species of spring snail, an aquatic gastropod in the family Hydrobiidae.MolluscaBase eds. (2023). MolluscaBase. Alzoniella edmundi (Boeters, 1984). Accessed through: World Register of Marine Species at: https://www.m ...

'' (Boeters, 1984) *''

Alzoniella finalina ''Alzoniella'' is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on springs as a ...

'' Giusti & Bodon, 1984 *''

Alzoniella galaica ''Alzoniella'' is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on springs as a ...

'' (Boeters & Rolán, 1988) *''

Alzoniella hartwigschuetti ''Alzoniella hartwigschuetti'' is a species of spring snail, an aquatic gastropod in the family Hydrobiidae. This species is endemic to Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the sout ...

'' (Reischütz, 1983) *''

Alzoniella iberopyrenaica ''Alzoniella iberopyrenaica'' is a species of very small aquatic snail, a spring snail, an operculate gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Moll ...

'' Arconada, Rolán & Boeters, 2007 *''

Alzoniella marianae ''Alzoniella marianae'' is a species of very small aquatic snail, a spring snail, an operculate gastropod mollusc in the family Hydrobiidae Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater a ...

'' Arconada, Rolán & Boeters, 2007 *''

Alzoniella pellitica ''Alzoniella pellitica'' is a species of very small aquatic snail, a spring snail, an operculate gastropod mollusc in the family Hydrobiidae Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater a ...

'' Arconada, Rolán & Boeters, 2007 *''

Alzoniella pyrenaica ''Alzoniella pyrenaica'' is a species of minute freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to France France (), officially the French Republic ( ), ...

'' Boeters, 1983 *''

Alzoniella rolani ''Alzoniella'' is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on springs as a ...

'' (Boeters, 1986) *'' Alzoniella slovenica'' (Ložek & Brtek, 1964)

References

Hydrobiidae Taxonomy articles created by Polbot {{Hydrobiidae-stub