[Shell SEM outer and inner structure and rissoacean phylogeny: VI. Dianella thiesseana (Kobelt) (Gastropoda: Prosobranchia: Rissoacea: Hydrobiidae).] (in German)

In the paper the authors describe the shell structures of Dianella thiesseana (KOBELT) from the Trichonis Lake (Greece). The protoconch and teloconch outer surface and teleoconch inner structure which are visible in etched shell sections perpendicular and parallel to the growth lines, are described. The results suggest that the Pyrgulidae BRUSINA cannot be placed within the Hydrobioidea.