On the taxonomical identity of some taxa of the Iberian endemic genus Iberus Montfort, 1810 (Gastropoda, Helicidae)

On the taxonomical identity of some taxa of the Iberian endemic genus Iberus Montfort, 1810 (Gastropoda, Helicidae).— To determine the taxonomic identity of some of the species included in the genus Iberus, we reviewed the type series described by Rossmassler (1854) and deposited at the Senckenberg Forschungsinstitut und Naturmuseum of Frankfurt (Germany). We concluded that Helix alcarazana (currently Iberus alcarazanus) is a junior synonym of Iberus alonensis (Ferussac, 1821). The type localities of Helix guiraoana and Helix alcarazana were discussed and modified and the lectotypes of Helix guiraoana, Helix guiraoana var. angustata, Helix alcarazana and Helix loxana were designated. In addition, we reviewed the type series of Helix alonensis Ferussac, 1821 (currently Iberus alonensis) deposited at the Museum national d’Histoire naturelle of Paris, France and we selected its lectotype. The locality of Alicante has been designated as the restricted type locality of this species.