Allenella_formalis References

Allenella formalis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Order:	Stylommatophora
Family:	Punctidae
Genus:	Allenella
Species:	A. formalis
Binomial name
	Allenella formalis; ( Iredale, 1944)
	Location of Lord Howe Island
Synonyms
	Allentula formalis (Iredale, 1944);

Allenella formalis, also known as the brown turban pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.^[2]

Description

The globosely turbinate shell of the mature snail is 2.5–2.6 mm in height, with a diameter of 3.4–3.6 mm, and a moderately raised conical spire. It is amber to dark brown in colour. The whorls are rounded above and below a slightly angular periphery, with impressed sutures and closely spaced radial ribs. It has an ovately lunate aperture and narrowly open umbilicus. The animal is dark brown with a paler brown sole.^[2]

Distribution and habitat

The snail occurs on the summits and upper slopes of the island's southern mountains.^[2]

References

^ 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). "Allenella formalis Iredale, 1944". MolluscaBase. Flanders Marine Institute. Retrieved 2021-08-08. {{ cite web}}: |author= has generic name ( help)

This Punctidae-related article is a stub. You can help Wikipedia by expanding it.

[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.

[1]

[2]