Three remarkable fossil Helicoidea species (Gastropoda: Stylommatophora)

In this paper three remarkable Helicoidea species from Cenozoic are described, and their systematic position is discussed. These are the following: I. Lychnopsis sp. A species from the Early Oligocene of Mallorca is described, without naming it. The genus Lychnopsis VIDAL is not related to the genus Lychnus MATHERON (Anadromidae); it is provisionally placed near to Eurystrophe GUDE (Elonidae). II. Helix aquensis SERRES 1829. This species from the Early Miocene of southern France, which until now was classified with Schlickumia TRUC (Helicidae), is transferred to the genus Galactochilus SANDBERGER (Elonidae). III. Klikia altenburgensis BINDER 1977. This species from the Early Pleistocene of Deutsch-Altenburg, Lower Austria, is assigned to the genus Faustina KOBELT (Helicidae, Ariantinae).