Reference

Bruno Ganner, Wilhelm Foissner (1989): Taxonomy and ecology of some ciliates (Protozoa, Ciliophora) of the saprobic system. III. Revision of the genera *Colpidium* and *Dexiostoma*, and establishment of a new genus, *Paracolpidium* nov. gen. – Forschungsdienst – 182: 181 - 218.