Kingdom Animalia (animals) Eumetazoa (metazoans) Bilateria (bilaterally symmetrical animals) Protostomia (protostomes) Lophotrochozoa Trochozoa Mollusca (clams, snails, squids, and relatives) Class Bivalvia Order Ostreoida Family Ostreidae Genus Ostreola Species Ostreola conchaphila (olympia oyster) Species Ostreola equestris (crested oyster)
