PATAGONIAN EXPEDITIONS I PALAEONTOLOGY. 



EXPLANATION OF PLATE XXX. 



PAGE 



Fig. i. PANOPEA REGULARIS (Ortm.) 153 



Patagonian beds. 



la. Outer vie\y of fragmentary left valve. Mouth of Santa Cruz 



River 250' above high tide. 



ib. Cardinal view of a double cast. Lake Pueyrredon, base. 

 Fig. 2. PANOPEA QUEMADENSIS (v. Ih.) .... . . 154 



Patagonian beds ; mouth of Santa Cruz River. 

 Outer view of left valve. 



Fig. 3. LUTRARIA (?) UNDATOIDES Ortm 151 



Lower Magellanian beds ; Punta Arenas. 

 Cast of left valve. 



Fig. 4. CORBULA HATCHERI Ortm. . . . . . . . . 15! 



Patagonian beds ; mouth of Santa Cruz River. 



4#. Outer view of right valve. 



$. Cardinal view of another, double individual. 



4^. Ventral view of the same. 

 Fig. 5. MARTESIA PATAGONICA (Phil.) . . . . . . . . 155 



Patagonian beds ; Mount of Observation, upper horizon. 



Outer view of right valve. 

 Fig. 6. MARTESIA PUMILA Ortm. ........ 156 



Patagonian beds ; mouth of Santa Cruz River. 



6a. Outer view of cast of right valve. 



6t>. The same, 2/1. 

 Fig. 7. PATELLA PYGM^A Ortm. . . . . . . . . 161 



Upper Magellanian beds ; Punta Arenas. 



7#. Side view, natural size. 



7<J. Upper view, natural size. 



*jc. The same, 3/1. 



Fig. 8. FlSSURELLA EURYTRETA CoSSHl. . . . . . . . l6l 



Patagonian beds ; upper Rio Chalia. 



Upper view of cast. 

 Fig. 9. LEPTOTHYRA PHILIPPII Cossm. . . . . . . . 162 



Patagonian beds ; mouth of Santa Cruz River. 

 9#. Side view of shell. 

 96. The same, 4/1. 

 Fig. 10. LIOTIA scorn Ortm. ......... 162 



Patagonian beds ; mouth of Santa Cruz River. 

 loa. Side view. 

 lob. Lower view. 



Upper view, 3/1. 



