Reference

J.-P. Mignot, Félix Marie Affa'a (1995): Patterning in Opalinids. III. The Cytoskeleton of Cepedea sudafricana (Fantham, 1923) Affa’a & Lynn 1994, an Intermediate Type between Opalina ranarum and Protoopalina pseudonutti – Archiv für Protistenkunde – 145_1995: 241 - 249.