Gyropena is a genus of two species of tiny pinwheel snails that are endemic to Australia's Lord Howe Island in the Tasman Sea. [2]

Gyropena
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Superfamily: Punctoidea
Family: Charopidae
Subfamily: Charopinae
Genus: Gyropena
Iredale, 1944[1]

Species

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Description

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The shells of these snails are 0.9–1.5 mm in height, with a diameter of 1.9–2.9 mm. The colour is golden-brown to pale fawn. The shape is discoidal with a low or sunken spire, whorls shouldered and sutures impressed, with prominent radial ribs. The umbilicus is widely open. The aperture is roundly lunate.[3]

Habitat

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These snails are found at the southern end of the island, on the summits and slopes of Mount Lidgbird and Mount Gower, in leaf litter.[3]

References

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  1. ^ Iredale, Tom (1944). "The land Mollusca of Lord Howe Island". Australian Zoologist. 10 (3): 299–334.
  2. ^ MolluscaBase eds. (2021). MolluscaBase. Gyropena Iredale, 1944. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=818299 on 2021-07-12
  3. ^ a b Hyman, Isabel; Köhler, Frank (2020). A Field Guide to the Land Snails of Lord Howe Island. Sydney: Australian Museum. ISBN 978-0-9750476-8-2.