Kornilova, Olga, Lyudmila Chistiakova, and Ekaterina Yagunova. 2014. “Species of the Genus <em>Balantidium</em&gt; from Fish Andamphibians: Morphometric Data”. Biological Communications, no. 2 (June), 5–19. https://biocomm.spbu.ru/article/view/1131.