Pernastela gnoma

Pernastela gnoma
	Location of Lord Howe Island
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Order:	Stylommatophora
Family:	Punctidae
Genus:	Pernastela
Species:	P. gnoma
Binomial name
	Pernastela gnoma; Iredale, 1944
	Location of Lord Howe Island

Pernastela gnoma, also known as the dwarf pinhead snail, is a tiny species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.^[2]

Description edit

The trochoidal shell of the mature snail is 0.8 mm in height, with a diameter of 1.2–1.3 mm, and a moderate spire. It is golden-brown in colour. The whorls are shouldered and sutures impressed, with moderately spaced radial ribs. It has an ovately lunate aperture and a narrow umbilicus.^[2]

Distribution and habitat edit

The snail is common and widespread across the island, inhabiting plant litter.^[2]

References edit

^ Iredale, Tom (1944). "The land Mollusca of Lord Howe Island". Australian Zoologist. 10 (3): 299–334.
^ ^a ^b ^c 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). "Pernastela gnoma Iredale, 1944". MolluscaBase. Flanders Marine Institute. Retrieved 2021-08-16. {{cite web}}: |author= has generic name (help)

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[iredale44-1] Iredale, Tom (1944). "The land Mollusca of Lord Howe Island". Australian Zoologist. 10 (3): 299–334.

[h&k-2] 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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