Critically Endangered
Geomitra coronula
Geomitra coronula
Geomitra coronula is a land snail in the family Geomitridae (order Stylommatophora), recorded as Critically Endangered.
Appearance
It has a conical white shell, 5–6 mm (0.20–0.24 in) in width and 3.5–4.5 mm (0.14–0.18 in) in length, with five whorls.
It was originally described by English malacologist Richard Thomas Lowe in 1852, from Quaternary fossil deposits found in the southern part of Bugio Island.
Range and habitat
Geomitra coronula is endemic to the Madeira Archipelago, where it is only found on the Desertas Islands.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet
Snails move on a single foot and feed with a rasping tongue. Island and spring species rarely recolonise once the site is emptied.
In crisis
Geomitra coronula is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Geomitra coronula, Wikidata item Q81850335. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.



