Nitzschia elongata Hassal, 1845 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Bacillariales family Bacillariaceae genus Nitzschia species Nitzschia sigmoidea Name Homonyms Nitzschia elongata (Nitzsch, 1826) Johnston, 1865 Nitzschia elongata Hantzsch, 1860 Nitzschia elongata Hassal, 1845