PATAGONIAN EXPEDITIONS : PALEONTOLOGY. 



PAGE 



Fig. 10. UROSALPINX COSSMANNI Ortm. . . . 219 



Patagonian beds ; mouth of Santa Cruz River. 

 loa. Back view of shell. 

 The same, 2/1. 



View of mouth of another specimen, 2/1. 

 Fig. ii. UROSALPINX PYRIFORMIS (v. Ih.). ..... 220 



Patagonian beds ; Lake Pueyrredon, base. 

 Back view of shell. 



All of the figures, unless otherwise stated, are natural size. 



(VOL. iv) 



