Navicula wittrockii var. wittrockii Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Stauroneidaceae genus Stauroneis species Stauroneis wittrockii Name Homonyms Navicula wittrockii f. wittrockii Navicula wittrockii var. wittrockii