''Notopala hanleyi'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of large

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 ...

, an 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 ...

in the family

Viviparidae Viviparidae, sometimes known as the river snails or mystery snails, are a family of large operculate freshwater snails, aquatic gastropod mollusks. This family is classified in the informal group Architaenioglossa according to the taxonomy of ...

. It is also classified as a subspecies ''Notopala sublineata hanleyi''. This species is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

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 ...

and is found across the Murray-Darling basin. This species was thought to be

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

, but one population has been found in

pipeline Pipeline may refer to: Electronics, computers and computing * Pipeline (computing), a chain of data-processing stages or a CPU optimization found on ** Instruction pipelining, a technique for implementing instruction-level parallelism within a s ...

in 1993.Sheldon F. & Walker K. F. (1993). "Pipelines as a refuge for freshwater snails". '' Regulated Rivers'' 8: 295-299. . It feeds on microbial and organic matter.

References

External links

River Snail (''Notopala sublineata'')

Sanger A. "RECOMMENDATION ''NOTOPALA SUBLINEATA'' – (RIVER SNAIL)". Ref. No. FR14, File No. FSC 00/10.
(file changed 6 February 2008). Viviparidae Gastropods of Australia Freshwater molluscs of Oceania Taxa named by Georg Ritter von Frauenfeld {{Viviparidae-stub