| Palaina waterhousei | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Architaenioglossa |
| Superfamily: | Cyclophoroidea |
| Family: | Diplommatinidae |
| Genus: | Palaina |
| Species: | P. waterhousei |
| Binomial name | |
| Palaina waterhousei Iredale, 1944 | |
| |
| Location of Lord Howe Island | |
Palaina waterhousei, also known as the wide-ribbed staircase snail, is a species of staircase snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
Description
The pupiform shell of adult snails is 2.8–3.1 mm in height, with a diameter of 1.7 mm, with a domed spire. It is white in colour, with golden-brown apical whorls. It has widely spaced, axal ribs. The umbilicus is closed. The circular aperture has a strongly reflected lip and an operculum is present.
Habitat
The snail is common and widespread across the island.
References
- Iredale, Tom (1944). "The land Mollusca of Lord Howe Island". Australian Zoologist. 10 (3): 299–334.
- ^ 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.
| Taxon identifiers | |
|---|---|
| Palaina waterhousei | |
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