L. Forró - É. Murai szerk.: Miscellanea Zoologica Hungarica 6. 1991 (Budapest, 1991)

Nesemann, H.: Zoogeography and composition of leech fauna of Danubian lowland rivers in the Kisalföld compared with some molluscs (Hirudinea, Gastropoda)

Fig. 1. Dina apathyi, Soroksári Duna at Dunaharaszti, Hungary Fig. 2. Dina lineata, Weidenbach at Weikendorf, Austria Fig. 3. Piscicola haranti, Rábca at Győr, Hungary Fig. 4. Placobdella costata (from DRESSCHER & ENGEL 1960), Netherlands Fig. 5. Batracobdella algira, Danube (Prater) near Vienna, Austria Figs 6-7. Theodaxus fluviatilis, Danube at Érd-Ófalu, Hungary