1. Chakravarty M (1936) On the morphology of Balantidium depressum (ghosh) from a mollusc, Pila globosa, with a note on its nuclear reaction and cytoplasmic inclusion. Arch Protistenkd 87:1–9
2. Chen CL (1955) The protozoan parasites from four species of Chinese pond fishes: Ctenopharyngodon idellus, Mylopharyngodon piceus, Aristhicthys nobillis and Hypophthalmichthys molithaix. I. The protozoan parasites of Ctenopharyngodon idellus. Acta Hydrobiol Sin 1:123–164
3. Diamant A, Wilbert N (1985) Balantidium sigani sp. nov., a trichostome ciliate from red sea rabbitfish (Pisces, Siganidae). Arch Protistenkd 129:13–17
4. Earl PR (1973) The ciliate families Balantididae, Dilleriidae n. fam. and Nathellidae. Reviste de Biologia 9(1–4):175–185
5. Entz G (1913) Über organisationsverhältnisse von Nyctotheruspiscicola (Daday). Arch Protistenkd 29:364–386