Del Valle, Ignacio, Gabriel de La Fuente, and Manuel Fondevila. 2008. “Ciliate Protozoa of the Forestomach of Llamas (Lama glama) and Alpacas (Vicugna pacos) from the Bolivian Altiplano”. Zootaxa 1703 (1). Auckland, New Zealand:62–68. https://doi.org/10.11646/zootaxa.1703.1.4.