Xeroplexa olisippensis

Xeroplexa olisippensis is a species of air-breathing land snail endemic to Portugal, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
Distribution and habitat.
"Xeroplexa olisippensis" has its distribution in Portugal, widely spread through the western part of the country, from Porto to Faro. It lives in ruderal habitats, open forest, grassland, edges of rivers even in dunes under the stones or on the stems of vegetation. 
External links.
http://luisjavierchueca.com/research-3/candidula-s-l/