? arctica Grunow Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Cymbellales family Gomphonemataceae genus Gomphonema species Gomphonema exiguum Name Homonyms ? arctica Kluge, 1946 ? arctica Gray, 1824 ? arctica Kiparisova, 1937 ? arctica Tolmachoff, 1930 ? arctica Whitfield, 1908 ? arctica Blodgett & Johnson, 1992 ? arctica Waters, 1904 ? arctica Woodward, 1912 ? arctica Holtedahl, 1924 ? arctica Walcott & Resser, 1924