''Austropyrgus'' is a genus of minute

freshwater snail Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...

s with an operculum, 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 ...

mollusc 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 esti ...

s or micromolluscs in the Hydrobiidae family. ''Austropyrgus'' species are endemic to

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

, where they are found in virtually all freshwater habitats, from high mountain streams to isolated

springs 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 he ...

in the arid zone.

Species

With 76 recognized species, ''Austropyrgus'' is the largest genus of Australian freshwater molluscs and is the most widespread of the Australian freshwater ''Hydrobiidae'' genera. ''Austropyrgus'' species include: * '' Austropyrgus abercrombiensis'' Clark, Miller & Ponder, 2003 * '' Austropyrgus angasi'' (E. A. Smith, 1882) * '' Austropyrgus aslini'' Clark, Miller & Ponder, 2003 * '' Austropyrgus avius'' Clark, Miller & Ponder, 2003 * '' Austropyrgus buchanensis'' Clark, Miller & Ponder, 2003 * '' Austropyrgus bullerensis'' Clark, Miller & Ponder, 2003 * ''

Austropyrgus bungoniensis ''Austropyrgus bungoniensis'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the Hydrobiidae family. This species is endemic to southern New South Wales, Australia. It is known from st ...

'' Clark, Miller & Ponder, 2003 * '' Austropyrgus colensis'' Clark, Miller & Ponder, 2003 * ''

Austropyrgus colludens ''Austropyrgus'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the Hydrobiidae family. ''Austropyrgus'' species are endemic to Australia, where they are found in virtually all fr ...

'' Clark, Miller & Ponder, 2003 * ''

Austropyrgus conicus ''Austropyrgus'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the Hydrobiidae family. ''Austropyrgus'' species are endemic to Australia, where they are found in virtually all freshwat ...

'' Clark, Miller & Ponder, 2003 * ''

Austropyrgus cooma ''Austropyrgus'' is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the Hydrobiidae family. ''Austropyrgus'' species are endemic to Australia, where they are found in virtually all freshwat ...

'' (Iredale, 1943) *''

Austropyrgus dyerianus ''Austropyrgus dyerianus'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk or micromollusk in the Hydrobiidae family. This species is endemic to Australia Australia, officially the Commonwe ...

'' (Petterd, 1879) *''

Austropyrgus elongatus ''Austropyrgus elongatus'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the Hydrobiidae family. This species is endemic to eastern Tasmania, Australia. It is only known from one loca ...

'' (May, 1921) *'' Austropyrgus eumekes'' Clark, Miller & Ponder, 2003 *''

Austropyrgus foris ''Austropyrgus foris'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the Hydrobiidae family. This species is endemic to eastern Victoria, Australia. It is only known from a small stre ...

'' ( Ponder, Colgan, Clark, Miller & Terzis, 1994) *''

Austropyrgus grampianensis ''Austropyrgus grampianensis'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk or micromollusk in the Hydrobiidae family. This species is endemic to western Victoria, Australia. It is known from two small ...

'' (Gabriel, 1939) *''

Austropyrgus halletensis ''Austropyrgus halletensis'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the Hydrobiidae family. This species is endemic to South Australia, Australia. It is known from a small cree ...

'' Clark, Miller & Ponder, 2003 *'' Austropyrgus nepeanensis'' Clark, Miller & Ponder, 2003 *''

Austropyrgus niger ''Austropyrgus niger'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the family Hydrobiidae. This species is endemic to southeastern Tasmania, Australia. It is found in small coastal ...

'' ( Quoy & Gaimard, 1834) *''

Austropyrgus ora ''Austropyrgus ora'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the Hydrobiidae family. This species is endemic to eastern Victoria and southern New South Wales, Australia. See a ...

'' Clark, Miller & Ponder, 2003 *'' Austropyrgus parvus'' Clark, Miller & Ponder, 2003 *''

Austropyrgus pusillus ''Austropyrgus pusillus'' is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the Hydrobiidae family. This species is endemic to western Victoria, Australia. It is found in small springs a ...