Innesoconcha segna
Innesoconcha segna, also known as the pale glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.[2]
Innesoconcha segna | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Heterobranchia |
Order: | Stylommatophora |
Family: | Euconulidae |
Subfamily: | Microcystinae |
Tribe: | Liardetiini |
Genus: | Innesoconcha |
Species: | I. segna |
Binomial name | |
Innesoconcha segna | |
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Location of Lord Howe Island |
Taxonomy
I. segna is sometimes considered to be a junior synonym of I. catletti. However, the two forms exhibit differences in their shells as well as their genital anatomy, and they are treated as separate species by Hyman & Köhler (2020).[2]
Description
The depressedly trochoidal shell of the mature snail is 5.9–7.8 mm in height, with a low spire and a diameter of 10.7–12 mm. It is glossy and pale golden-yellow in colour The whorls are rounded, with finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus. The body of the animal (in alcohol) is light orange-brown.[2]
Distribution and habitat
The snail is evidently very rare and known only from the localities of Boat Harbour and Rocky Run Creek on the island. It has only been collected in low numbers, and may be extinct.[2]
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.
- MolluscaBase eds (2021). "Innesoconcha segna Iredale, 1944". MolluscaBase. Flanders Marine Institute. Retrieved 2021-08-03.
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