Proteonina difflugiformis var. lagenarium (Berthelin, 1880) Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Foraminifera order Astrorhizida family Saccamminidae genus Saccammina species Saccammina lagenaria Name Homonyms Proteonina difflugiformis var. lagenarium (Berthelin, 1880)