Article · Wikipedia archive · Last revised Jun 5, 2026

Atlantica gueriniana

Atlantica gueriniana is a species of small air-breathing land snail, a terrestrial gastropod mollusk presently in the family Gastrodontidae, but formerly in Discidae, the disk snails.

Last revised
Jun 5, 2026
Read time
≈ 1 min
Length
194 w
Citations
7
Source
Wikipedia ↗
Madeiran land snail
Critically endangered
Critically endangered, possibly extinct (IUCN 3.1)1
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Gastrodontidae
Genus: Atlantica
Species:
A. gueriniana
Binomial name
Atlantica gueriniana
(R. T. Lowe, 1852)
Synonyms
  • Atlantica guerinianus
  • Discus guerinianus (Lowe, 1852)
  • Helix gueriana
  • Helix gueriniana Lowe, 1852
  • Helix guerinianus
  • Helix semiplicata L. Pfeiffer, 1852

Atlantica gueriniana is a species of small air-breathing land snail, a terrestrial gastropod mollusk presently in the family Gastrodontidae,23 but formerly in Discidae, the disk snails.1

Distribution

This species is endemic to Madeira, Portugal.14

Shell description

The shell of these snails is shaped like a discus, or a lens, with a noticeable "edge" around the periphery of the whorls.

Conservation status

This species is mentioned in annexes IV and IV of the Habitats Directive.4

References

References

  1. Teixeira, D.; Groh, K.; Seddon, M.B. & Cameron, R. (2017). "Atlantica guerinianus". IUCN Red List of Threatened Species. 2017 e.T6735A86008614. doi:10.2305/IUCN.UK.2017-3.RLTS.T6735A86008614.en. Retrieved 19 June 2023.
  2. MolluscaBase eds. (2022). MolluscaBase. Atlantica gueriniana (R. T. Lowe, 1852). Accessed through: World Register of Marine Species at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1002131 on 2023-06-19
  3. "Discus". Global Biodiversity Information Facility.
  4. "Discus guerinianus - Lowe, 1852". eunis.eea.europa.eu. European Environment Agency. Retrieved 26 January 2020.