VØRS, Naja 1992 (Sept.) Heterotrophic amoebae, flagellates and heliozoa from the Tvärminne area, Gulf of Finland, in 1988-1990 Ophelia 36(1): 1-109, 46 figs., 2 tables [incl. Abollifer, Kiitoksia, Quadricilia, n.g. Flagellata incertae sedis; Ollicola n.g. Chrysophyceae]