Ectocarpus littoralis f. lividus Kuckuck, 1891 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Ectocarpales family Acinetosporaceae genus Pylaiella species Pylaiella littoralis Name Homonyms Ectocarpus littoralis f. lividus Kuckuck, 1891