Palaina deliciosa, also known as the minuscule staircase snail, is a species of staircase snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.
| Palaina deliciosa | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Architaenioglossa |
| Superfamily: | Cyclophoroidea |
| Family: | Diplommatinidae |
| Genus: | Palaina |
| Species: | P. deliciosa
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| Binomial name | |
| Palaina deliciosa | |
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| Location of Lord Howe Island | |
| Synonyms | |
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Description
editThe pupiform shell of adult snails is 1.5 mm in height, with a diameter of 0.9 mm, with deeply impressed sutures. It is white in colour, with golden apical whorls. It has moderately spaced axal ribs. The umbilicus is closed. The circular aperture has an operculum.[2]
Habitat
editThe snail is common and widespread across the island.[2]
References
edit- ^ Iredale, Tom (1944). "The land Mollusca of Lord Howe Island". Australian Zoologist. 10 (3): 299–334.
- ^ 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.
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