Trachyneis aspera subsp. perobliqua Cleve Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Naviculaceae genus Trachyneis species Trachyneis aspera Name Homonyms Trachyneis aspera subsp. perobliqua Cleve Trachyneis aspera var. perobliqua Cleve, 1894