Girardi 2009. [Bythiospeum bournense, new species, Spiralix thaisensis, new species and observation of Bythiospeum garnieri (Sayn, 1889), from Thais cave in Vercors massif, (Drome, Isere, France). A notable malacofauna (Mollusca: Caenogastropoda: Hydrobiidae: Belgrandiinae).] Documents Malacologiques Hors Serie, 3, avril 2009: 175-184