Opercularia microdiscum Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ciliophora class Oligohymenophorea order Peritrichida family Operculariidae genus Opercularia species Opercularia microdiscum Name Synonyms Epistylis microdiscum Opercularia microdiscus Faure-Fremiet, 1904 Zoothamnium microdiscum Homonyms Opercularia microdiscum