xii List of Plates 



PLATE 



BETWEEN PAGES 2IO AND 211 (iN BLACK AND WHITe) 



2 3 Atlantic Coast Univalves — Conchs and Whelks 



24 Pacific Coast Univalves — Purpuras and Neptunes 



2 5 Atlantic Coast Univalves — Rock-shells and Doves 



26 Atlantic Coast Univalves — Miters and Bubbles 



27 Atlantic Coast Bivalves — Scallops and Arks 



2 8 Atlantic Coast Bivalves — Oysters and Astartes 



29 Pacific Coast Bivalves — Mussels and Semeles 



30 Atlantic Coast Bivalves — Lucines and Tellins 



3 1 Pacific Coast Bivalves — Cockles and Venerids 



3 2 Atlantic Coast Bivalves — Venus and Macomas 



BETWEEN PAGES 402 AND 403 (iN COLOr) 



33 Large Scallops 



34 Small Scallops 



35 Pearl Oysters and Mussels 



36 Thorny Oysters 



37 Jewel Boxes 



38 Atlantic Oysters, Lucinas and Venus Clams 



39 Venus Clams and Cockles 



40 Semeles and Tellins 



