Caloneis schumannia var. biconstricta Grunow Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Pinnulariaceae genus Caloneis species Caloneis limosa Name Homonyms Caloneis schumannia var. biconstricta (Grunow) Reichelt, 1903