PATAGONIAN EXPEDITIONS I PALEONTOLOGY. 



EXPLANATION OF PLATE XXVII. 



PAGE 



Fig. i. CRASSATELLITES QUARTUS (Ortm.). . ... 124 



Patagonian beds ; mouth of Santa Cruz River. Outer view of left valve. 

 Fig. 2. CRASSATELLITES LONGIOR (v. Ih.). . . . . . . . 125 



Patagonian beds ; Lake Pueyrredon, base. Outer view of right valve. 

 Fig. 3. LUCINA NEGLECTA Ortm. . . . . . . . . 129 



Lower Magellanian beds ; Punta Arenas. Outer view of left valve, im- 

 bedded in matrix. 

 Fig. 4. LUCINA PROMAUCANA Phil. ... ..... 130 



Patagonian beds ; Paso del Rio Santa Cruz. 

 40. Outer view of right valve. 

 4<5. Inner view of the same. 

 Fig. 5. LUCINA ORTMANNI v. Ih. . . . . . . . 131 



Patagonian beds ; mouth of Santa Cruz River. Outer view of right valve. 

 Fig. 6. CARDIUM PHILIPPII v. Ih. . . . . . . . . 132 



Patagonian beds ; mouth of Santa Cruz River. Incomplete right valve, 

 outer view. 



Fig. 7. CARDIUM PUELCHUM Sow 133 



Patagonian beds ; Las Salinas. Outer view of right valve. 

 Fig. 8. CARDIUM PISUM Phil. ......... 133 



Patagonian beds ; mouth of Santa Cruz River. Outer view of right 

 valve. 



Fig. 9. AMATHUSIA ANGULATA Phil. 134 



Patagonian beds ; mouth of Santa Cruz River, just above high tide. 



ga. View of hinge of left valve. 



gb. View of hinge of right valve, of the same individual. 



Fig. 10. VENUS CHILOENSIS Phil. . ....... 137 



Patagonian beds ; Punta Arenas. Outer view of right valve. 

 Fig. n. VENUS MERIDIONALIS Sow. . . . . . . . . 137 



Patagonian beds ; mouth of Santa Cruz River. 

 1 1 a. Outer view of right valve, 

 i ib. Cardinal view of the same specimen, showing both valves. 



Fig. 12. VENUS NAVIDADIS Phil. 141 



Patagonian beds ; mouth of Santa Cruz River. 

 1 2a. Outer view of left valve. 

 i zb. Hinge of same. 



Fig. 13. DOSINIA MAGELLANICA Ortm 144 



Lower Magellanian beds ; Punta Arenas. Outer view of left valve. 



All the figures are natural size. 



(VOL. iv) 



