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