? exigua W.Greg. Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Cymbellales family Cymbellaceae genus Placoneis species Placoneis exigua Name Homonyms ? exigua Hall, 1847 ? exigua Terquem, 1855 ? exigua Brosamlen, 1909 ? exigua W.Greg. ? exigua Probst, 1879 ? exigua Terquem, 1855 ? exigua Scudder, 1886 ? exigua Budde-Lund, 1885 ? exigua Zayas, 1975 ? exigua Hombron & Jacquinot, 1848