Northern astarte clam (Astarte borealis) (shadowshador) Tags: northern astarte clam borealis neomura eukaryota opisthokonta holozoa filozoa animalia eumetazoa bilateria protostomia lophotrochozoa mollusca conchifera bivalvia heterodonta archiheterodonta carditoida crassatelloidea astartidae conchology malacology invertebrate invertebrates taxonomy scientific classification biology sea shell shells sand sandy beach wildlife life white