Vorticella piriformis Müller, 1786 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ciliophora class Oligohymenophorea order Peritrichida family Epistylididae genus Epistylis species Epistylis pygmaeum Name Homonyms Vorticella piriformis Müller, 1786 Vorticella piriformis Müller, 1773