Reference

Akira Ito, Soichi Imai (2000): Ciliates from the cecum of capybara (*Hydrochoerus hydrochaeris*) in Bolivia. 1. The families Hydrochoerellidae n. fam., Prothallidae, and Pycnotrichidae – Europ. J. Protistol. – 36: 53 - 84.