Procerolagena gracillima gracilis (Seguenza, 1862) Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Protozoa class Granuloreticulosea order Foraminiferida family Lagenidae genus Hyalinonetrion species Hyalinonetrion gracillima Name Homonyms Procerolagena gracillima subsp. gracilis (Williamson, 1848)