Helicidae is a large, diverse family of western Palaearctic, medium to large-sized, air-breathing land snails, sometimes called the "typical snails." It includes some of the largest European land snails, several species are common in anthropogenic habitats, and some became invasive on other continents. A number of species in this family are valued as food items, including Cornu aspersum the brown or garden snail, and Helix pomatia. The biologies of these two species in particular have been thoroughly studied and documented.
Allognathus graellsianus is a species of land snail in the family Helicidae, the true snails. It is endemic to Mallorca, one of Spain's Balearic Islands. This taxa is the type species of the genus Allognathus.
Candidula is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Geomitridae, . the hairy snails and their allies.
Xerotricha bierzona is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusks in the family Geomitridae, the hairy snails and their allies.
Iberus is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helicinae of the family Helicidae.
Cernuella is a genus of small air-breathing land snails, pulmonate gastropod mollusks in the family Geomitridae, the hairy snails and their allies.
Cochlicella is a genus of small, narrow-shelled, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Geomitridae, previously placed in the Helicidae, Cochlicellidae or Hygromiidae.
Arianta is a medium-sized genus of European land snails, terrestrial pulmonate gastropod mollusks in the family Helicidae.
Ponentina is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Geomitridae. the hairy snails and their allies.
Xerocrassa is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the subfamily Helicellinae of the family Geomitridae.
Xerocrassa caroli is a species of air-breathing land snail, a pulmonate gastropod mollusk in the family Geomitridae.
Xerocrassa cisternasi is a species of air-breathing land snail, a pulmonate gastropod mollusk in the family Geomitridae.
Eremina is a genus of land snails.
Xeroplexa is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helicellinae of the family Geomitridae, the hairy snails and their allies.
Allognathus campanyonii is a species of land snail in the family Helicidae, the true snails.
Allognathus hispanicus is a species of land snail in the family Helicidae, the true snails. This species is endemic to Mallorca, one of Spain's Balearic Islands. The common name is "caragol de Serp", due to the pattern of it shell.
Xeroplexa setubalensis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
Xeroplexa carrapateirensis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. The species epithet carrapateirensis is an adjective derived from the type locality near Carrapateira.
Xeroplexa scabiosula is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
Xeroplexa strucki is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. Although named by Maltzan (1886), no differences from X. olisippensis were indicated and Gittenberger therefore treated them as synonyms. However, the present study has revealed that the W. Algarve populations named as strucki and similar snails from the coast of W. Baixo Alentejo differ consistently in having a much shorter penial flagellum.
