PATAGONIAN EXPEDITIONS : PALEONTOLOGY. 
EXPLANATION OF PLATE XXII. 
PAGE 
Fig. i. Pecten proximus v. Ih. . . . . . . . . 114 
Patagonian beds ; mouth of Santa Cruz River. 
1 a. Left valve belonging to the same individual as that figured 
on plate XXI. 
ib. Right valve of a young individual. 
1 c. Left valve of the same. 
All the figures are natural size. 
(VOL. IV) 
