Reference

S.G. Shete, R. Krishnamurthy (1984): Observations on the Rectal Ciliates of the Genus Balantidium, Claparede and Lachmann, 1858 from Indian Amphibians Bana tigrina and R. cyanophlyctis – Archiv für Protistenkunde – 128_1984: 179 - 194.