Ultrastructure and organisation of the proboscis epithelia in <i>Cicerina remanei</i> Meixner, 1928. (Turbellaria, Eukalyptorhynchia)

Ultrastructural data on the proboscis epithelia of Eukalyptorhynchia have been given by Rieger and Sterrer (1975) for Bertiliellidae, by Doe (1976) for Gnathorhynchidae, by Reuter (1975) and Schockaert and Bedini (1977) for Polycystididae. Only the latter authors dealt with the overall organization of the epithelia in the proboscis, and this for Polycystis naegelii. The anatomy of the proboscis is indeed an important element in the taxonomy of the Eukalyptorhynchia. It is to be expected that the ultrastructure will provide further clues to indicate phylogenetic relationships between the major taxa in Eukalyptorhynchia when more data become available. In view of further comparative studies on the ultrastructure of the proboscis of Eukalyptorhynchia, we here describe the organization of the epithelia in Cicerina remanei