Hedleyoconcha addita, also known as the Lord Howe Island conical pinwheel snail, is a species of pinwheel snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. [2]

Hedleyoconcha addita
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Charopidae
Genus: Hedleyoconcha
Species:
H. addita
Binomial name
Hedleyoconcha addita
(Iredale, 1944)[1]
Location of Lord Howe Island

Description

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The trochoidal shell of adult snails is 5.6 mm in height, with a diameter of 7 mm, with a high conical spire, flat sutures and whorls rounded with a keeled edge. It is smooth and pale golden-brown. The umbilicus is narrowly open, partly concealed by the reflected lip of the roundly lunate aperture.[3]

Habitat

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The snail is only found on the southern end of the island, on the summit of Mount Gower and nearby ledges. [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. Hedleyoconcha addita Iredale, 1944. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1149134 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.