? arenaria Moore Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Melosirales family Melosiraceae genus Melosira species Melosira arenaria Name Homonyms ? arenaria Moore ? arenaria Hepp ? arenaria Billings, 1859 ? arenaria Bourguignat, 1862