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 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Superfamily: | Punctoidea |
| Family: | Charopidae |
| Subfamily: | Charopinae |
| Genus: | Gyropena Iredale, 1944[1] |
Species
edit- Gyropena minuta Shea & Griffiths, 2010 – Mount Gower pinwheel snail
- Gyropena verans Iredale, 1944 – sunken-spired pinwheel snail
Description
editThe 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
editThese 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
edit- ^ Iredale, Tom (1944). "The land Mollusca of Lord Howe Island". Australian Zoologist. 10 (3): 299–334.
- ^ 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
- ^ 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.