Rissoa parva
Bouchet & Rocroi (2005): Domain: Eukaryota • Regnum: Animalia • Subregnum: Eumetazoa • Cladus: Bilateria • Superphylum: Protostomia • Phylum: Mollusca • Classis: Gastropoda • Subclassis: Orthogastropoda • Superordo: Caenogastropoda • Ordo: Sorbeoconcha • Subordo: Hypsogastropoda • Infraordo: Littorinimorpha • Superfamilia: Rissooidea • Familia: Rissoidae • Genus: Rissoa • Species: Rissoa parva (da Costa, 1778)