Discus guerinianus

Discus guerinianus is a species of small air-breathing land snail, a terrestrial gastropod mollusk in the family Discidae, the disk snails.[2]

Discus guerinianus
Conservation status
Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Panpulmonata clade Eupulmonata clade Stylommatophora informal group Sigmurethra
Superfamily:	Punctoidea
Family:	Discidae
Genus:	Discus
Species:	Discus guerinianus
Binomial name
Discus guerinianus (R. T. Lowe, 1852)

Distribution

This species is endemic to Madeira, Portugal.[1][3]

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.

References

1. Seddon M. B. (2000). "Discus guerinianus". In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. <www.iucnredlist.org>. Downloaded on 14 June 2010.
2. "Discus guerinianus (R.T.Lowe, 1852)". www.gbif.org. GBIF.
3. "Discus guerinianus - Lowe, 1852". eunis.eea.europa.eu. European Environment Agency. Retrieved 26 January 2020.