? radiosa Quennerstedt, 1867 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Chromista phylum Ciliophora class Hypotrichea order Urostylida family Holostichidae genus Psammomitra species Psammomitra retractilis Name Homonyms ? radiosa Quennerstedt, 1867 ? radiosa Seebach, 1864