Melloconcha rosacea

Melloconcha rosacea, also known as the tiny rosy glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.[2]

Melloconcha rosacea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Euconulidae
Subfamily: Microcystinae
Tribe: Liardetiini
Genus: Melloconcha
Species:
M. rosacea
Binomial name
Melloconcha rosacea
(Iredale, 1944)[1]
Location of Lord Howe Island
Synonyms
  • Tribocystis rosacea Iredale, 1944

Description

The discoidal shell of the mature snail is 1.8–2.1 mm in height, with a diameter of 3.7–4.1 mm, and a flat or slightly raised spire. It is smooth, glossy and dark amber-brown in colour in live animals, the empty shell being golden-brown. The whorls are rounded, with flat sutures and finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus. The animal is dark grey with darker eyestalks.[2]

Distribution and habitat

The snail has a patchy distribution across the island and is found in leaf litter and the axils of palms.[2]

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