Reference

Wilhelm Foissner, D. Leipe (1995): Morphology and ecology of *Siroloxophyllum utriculare* (#Penard#, 1922) n. g., n. comb. (Ciliophora, Pleurostomatida) and an improved classification of pleurostomatid ciliates – J. Euk. Microbiol. – 42: 476 - 490.