Plate 6. 
Page 
Figure 1. Pectcn caurinus Gould.. 57 
Exterior of left valve reduced a little more than half. 
Puget Sound. 
2. Modiolus flabellatus Gould. 68 
Gould’s type figure. U. S. Expl. Exp. Moll. 
3. Psephtdiet lordi Baird. ........161 
Proc. U. S. N. M. 26. 
4. Led a lia mat a Carpenter. 23 
Proc. U. S. N. M. 26. 
5. Diplodonta orbella Gould. 124 
Boston Jour. Nat. Hist. 6. 
6. Diplodonta orbella Gould.124 
Same as No. 5. 
7. Liocyma scammoni Dali.. .159 
Am. Jour. Conch. 
Port Simpson, British Columbia. 
