Reference

Jarocki (1934): Two new hypocomid ciliates, *Heterocineta janickii* sp. n. and *H. lwoffi* sp. n., ectoparasites of *Physa fontinalis* (L.) and *Viviparus fasciatus* #Müller# – Mém. Acad. Sci. Cracovie (B) – 1934: 167 - 187.