Amastra micans

Amastra micans
Critically Imperiled
Critically Imperiled (NatureServe)[2]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Amastridae
Genus: Amastra
Species:
A. micans
Binomial name
Amastra micans
(L. Pfeiffer, 1859)

Amastra micans, commonly known as the Amastrid land snail, is a species of land snail, a terrestrial pulmonate gastropod mollusk in the family Amastridae.[3][4][2] It is a critically endangered species and endemic to the Hawaiian Islands, mainly found in the Waianae Mountains of Oahu.[2][5]

Description

Amastra micans is tiny to medium-sized, with their shell measuring an average of 15mm in height and 9mm in width.[6] The shell is elongated and conical in shape, coiled in a dextral (right-handed) spiral with a pointed apex. Their shell's surface is smooth and polished, with a wide range of colors and patterns, typically light brown to dark brown, with a white or cream-colored apex.[5][6]

Amastra micans feed on waste.[5]

Distribution and habitat

This species is endemic to the Hawaiian islands, being only found on the island of Oahu. They are particularly located in the Waianae Mountains.[2][5]

Amastra micans inhabit leaves and trees, notably the leaf litter of the native tree Pipturus albidus.[6]

Conservation status

Amastra micans is classified as critically imperiled and faces various threats to its survival, including habitat loss and predation.[2][5] However, they have been relocated to a protected habitat and now only live in the central Waianae range, following extensive efforts with the Hawaii State Division of Forestry and Wildlife and Bishop Museum.[5]

References

  1. ^ Cowie, R.H. (1996). "Amastra micans". IUCN Red List of Threatened Species. 1996 e.T986A13100662. doi:10.2305/IUCN.UK.1996.RLTS.T986A13100662.en. Retrieved 15 November 2021.
  2. ^ a b c d e NatureServe. "Amastra micans". NatureServe Explorer. Arlington, Virginia. Retrieved 3 May 2026.
  3. ^ "Amastrid Land Snail (Amastra micans) | Idaho Fish and Game". idfg.idaho.gov. Retrieved 2024-03-01.
  4. ^ "Taxon Details | MCZbase". mczbase.mcz.harvard.edu. Retrieved 2024-03-01.
  5. ^ a b c d e f "Amastra". Division of Forestry and Wildlife: Native Ecosystems Protection & Management. 2020-12-29. Retrieved 2024-03-01.
  6. ^ a b c Leung, Kelley (2023-11-22). "A size and taxonomic assessment of non-lethal DNA sampling of gastropods using Flinders Technology Associates (FTA) cards". Conservation Genetics Resources. 16 (1): 45–61. doi:10.1007/s12686-023-01325-3. hdl:11370/b2e02d09-5a35-4d2f-b1f9-2b0331bf7005. ISSN 1877-7260.
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