Sterna acuflavida eurygnatha Saunders, 1876 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Chordata class Aves order Charadriiformes family Laridae genus Thalasseus species Thalasseus acuflavidus Name Homonyms Sterna acuflavida eurygnatha Saunders, 1876