Balantidium coli (Malmsten, 1857) Stein, 1863 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ciliophora class Heterotrichea order Heterotrichida family Balantidiidae genus Balantidium species Balantidium coli Name Synonyms Paramaecium coli Malmsten, 1857 Paramecium coli Malmsten, 1857 Homonyms Balantidium coli (Malmsten, 1857) Stein, 1863