Navicula contenta Grunow ex Van Heurck Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Diadesmidaceae genus Humidophila species Humidophila contenta Name Homonyms Navicula contenta Grunow ex Van Heurck Navicula contenta Grunow, 1885