Plate 7 



Fui. 1. Saxidoiinis nuttalU Conrad; Washington clam. Bodega Bay. Five- 

 seventh.s natural size. Exterior left valve. 



Fig. 2. Saxulomtis nuttalU, same specimen as Fig. 1. Three-quarters natural 

 size. Interior left valve. Note muscle sears and pallial line with pallial sinus. 



