The present book is the second part of a treatise on European Clausiliidae. The focus points of this part are the systematics and diagnoses of species taxa of the following Clausiliidae groups. Species diagnoses for the genera Albinaria (with special focus on Crete), Medora (species of Dalmatia), Alopia, Cochlodina (species of the Dinaric and SE-Alps), Macedonica, Siciliaria, Clausilia, Neostyriaca, Strigillaria. Species system of Montenegrina. Subspecies division of Charpentieria itala, Papillifera papillaris. Revised systematics of the tribes Delimini, Clausiliini, Baleini. Overview of the Pliocene-Pleistocene Clausiliidae faunas in central Europe.