Charopinesta sema
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Stylommatophora
Family: Punctidae
Genus: Charopinesta
Species:
C. sema
Binomial name
Charopinesta sema
(Iredale, 1944)[1]
Location of Lord Howe Island

Charopinesta sema, also known as the Blackburn Island pinhead snail, is a species of land snail that is endemic to Australia's Lord Howe Island group in the Tasman Sea.[2]

Description

The depressedly turbinate to discoidal shell of the mature snail is 1.1 mm in height, with a diameter of 1.8 mm, and a low, stepped spire. It is pale golden in colour. The whorls are rounded, with deeply impressed sutures and moderately spaced radial ribs. It has a roundedly lunate aperture and widely open umbilicus. [2]

Distribution and habitat

This extremely rare snail is known from a single empty shell from Blackburn Island. It may be extinct.[2]

References

  1. ↑ Iredale, Tom (1944). "The land Mollusca of Lord Howe Island". Australian Zoologist. 10 (3): 299–334.
  2. 1 2 3 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). "Charopinesta sema Iredale, 1944". MolluscaBase. Flanders Marine Institute. Retrieved 2021-08-12. {{cite web}}: |author= has generic name (help)
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