Rissoa macra R.B.Watson, 1886 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Littorinimorpha family Rissoidae genus Rissoa species Rissoa macra Name Homonyms Rissoa macra R.B.Watson, 1886 Rissoa macra R.B.Watson, 1886