Prionospio malmgreni dubia Day, 1961 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Annelida class Polychaeta family Spionidae genus Prionospio species Prionospio steenstrupi Name Homonyms Prionospio malmgreni dubia Day, 1961 Prionospio malmgreni dubia Maciolek, 1985 Prionospio malmgreni var. dubia Day, 1961