Portlandia fraterna (A.E.Verrill & K.J.Bush, 1898) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Nuculanida family Yoldiidae genus Yoldiella species Yoldiella nana Name Homonyms Portlandia fraterna (A.E.Verrill & K.J.Bush, 1898)