''Isidorella'' 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 air-breathing

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, aquatic

pulmonate Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...

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 in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Planorbidae, the ram's horn snails. All species within family Planorbidae have sinistral shells. Species of ''Isidorella'' may appear to be very similar species of '' Glyptophysa''. However, ''Isidorella'' may differentiated by their lack of a stylet and an accessory structure. ''Isidorella'' also have a two-lobed penis, unlike '' Glyptophysa''.

Distribution

This genus is endemic to mainland

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 ...

Species

Species within this genus include: *'' Isidorella bradshawi'' Iredale, 1943 *'' Isidorella egregia'' (Preston, 1906) *'' Isidorella ferruginea'' (Adams and Angas, 1864) *''

Isidorella hainesii ''Isidorella'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails. All species within family Planorbidae have sinistral shells. Species of ''Isidorella'' may ...

'' (Tryon, 1866) *''

Isidorella newcombi ''Isidorella'' is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails. All species within family Planorbidae have sinistral shells. Species of ''Isidorella'' may ...

'' (A. Adams & Angas, 1864) - type species Walker (1988) considered all examined specimens from Australia from this genus as ''Isidorella newcombi'' sensu lato.Walker J. C. (1988). "Classification of Australian buliniform planorbids (Mollusca: Pulmonata)". ''

Records of the Australian Museum A record, recording or records may refer to: An item or collection of data Computing * Record (computer science), a data structure ** Record, or row (database), a set of fields in a database related to one entity ** Boot sector or boot record, re ...

'' 40: 61-89
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Ecology

''Isidorella'' snails are grazers- scrapers and are capable of

aestivation Aestivation ( la, aestas (summer); also spelled estivation in American English) is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and ...

. ''Isidorella'' may be found in ponds, billabongs, swamps, and sluggish streams and rivers.

References

External links

* Distribution map
map
Planorbidae Taxa named by Ralph Tate {{Planorbidae-stub