Discula tetrica

Discula tetrica is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies.

Discula tetrica
Conservation status
Extinct[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Panpulmonata clade Eupulmonata clade Stylommatophora informal group Sigmurethra
Superfamily:	Helicoidea
Family:	Hygromiidae
Genus:	Discula
Species:	D. tetrica
Binomial name
Discula tetrica (R. T. Lowe, 1862)

This species was endemic to Bugio, Madeira, Portugal.

Discula tetrica was listed as Critically endangered in the 1996 IUCN Red List,[2] but it is considered to be extinct.[1]

References

1. Fontaine B., Bouchet P., Van Achterberg K., Alonso-Zarazaga M. A., Araujo R. et al. (2007). "The European union’s 2010 target: Putting rare species in focus." Biological Conservation 139: 167-185. Table 2 on the page 173. doi:10.1016/j.biocon.2007.06.012. PDF.
2. Mollusc Specialist Group (1996). Discula tetrica. 2006 IUCN Red List of Threatened Species. Archived June 27, 2014, at the Wayback Machine Downloaded on 6 August 2007.