''Allenella'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of three species of tiny pinhead or dot snails that are

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 els ...

to Australia's

Lord Howe Island Lord Howe Island (; formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, part of the Australian state of New South Wales. It lies directly east of mainland ...

in the

Tasman Sea The Tasman Sea ( Māori: ''Te Tai-o-Rēhua'', ) is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer ...

. The genus was first described in 1944 by

Tom Iredale Tom Iredale (24 March 1880 – 12 April 1972) was an English-born ornithologist and malacologist who had a long association with Australia, where he lived for most of his life. He was an autodidact who never went to university and lacked forma ...

Species

* ''

Allenella belli ''Allenella belli'', also known as the beautiful pinhead snail, is a species of land snail that is endemic to Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainl ...

'' Iredale, 1944 – beautiful pinhead snail * ''

Allenella formalis ''Allenella formalis'', also known as the brown turban pinhead snail, is a species of land snail that is endemic to Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the ...

'' Iredale, 1944 – brown turban pinhead snail * ''

Allenella planorum ''Allenella planorum'', also known as the angular pinhead snail, is a species of land snail that is endemic to Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the main ...

'' Iredale, 1944 – angular pinhead snail

References

* Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Punctidae-stub