[Contribution to the knowledge of the genus Bythiospeum Bourguignat, 1882, in France (3), Bythiospeum diaphanum fernetense and Bythiospeum diaphanum sarriansense, new subspecies for the departments of Drome and Vaucluse (Mollusca: Caenogastropoda: Hydrobiidae: Belgrandiinae).] Documents Malacologiques Hors Serie, 3, avril 2009: 185-190. 185 [Zoological Record Volume 145]