8 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
RANGE TO PANAMA (Continued) 
Martesia xylophaga 
Mytilus adamsianus 
Ostrea veatchii 
Chama exogyra 
Pteria sterna 
Saxicava arctica 
Saxicava pholadis 
Sphenia truncula 
Semele striosa 
Solemya johnsoni 
Tagelus affinis 
Tagelus subteres 
Tellina declivis 
Tellina panamensis 
Verticordia ornata 
RANGE TO PERU AND GALAPAGOS ISLANDS 
Anomia peruviana 
Area pompholyx 
Area reticulata 
Cardium elatum 
Cardium procerum 
Chama frondosa 
Chama pellucida 
Chione undatella 
Cumingia lamellosa 
Divaricclla perparvula 
Donax conradi 
Lasaea rubra 
Leda pontonia 
Lithophaga aristata 
Lithophaga attenuata 
Lithophaga plumula 
Lyonsia inflata 
Modiolus capax 
Pecten circularis 
Pedalion chemnitzianum 
Periploma planiuscula 
Petricola denticulata 
Semele pulchra 
Solemya agassizii 
Botula californica 
Cardium ciliatum 
Cardium corbis 
Macoma calcarea 
Macoma incongrua 
RANGE TO JAPAN 
Macoma secta 
Paphia staminea 
Pecten alaskensis 
Psammobia californica 
Pododesmus macroschisma 
Serripes gronlandicus 
Spisula alaskana 
Spisula voyi 
