Coitocoecum macrostomum Pigulevski, 1931 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Platyhelminthes class Trematoda order Plagiorchiida family Opecoelidae genus Nicolla species Nicolla skrjabini Name Homonyms Coitocoecum macrostomum Pigulevski, 1931