PATAGONIAN EXPEDITIONS : PALAEONTOLOGY. 



EXPLANATION OF PLATE XIV. 



PAGE 



Fig. i. TEREBRATELLA PATAGONICA (Sow.). ....... 75 



Patagonian beds ; Oven Point, San Julian. 



i a. Anterior view of a normal individual of medium size, 

 i b. Side view of the same. 

 Fig. 2. TEREBRATELLA GIGANTEA Ortm. ......... 78 



Cape Fairweather beds; Cape Fairweather. 



2a. Anterior view of a very young individual. 

 zb. Anterior view of a normal individual of medium size. 

 2c. Side view of the same. 



id. Inner view of smaller valve, showing brachial apparatus. 

 2e. Inner view of smaller valve of a very old individual, show- 

 ing thickening of median septum and hinge. 

 2/ Inner view of larger valve of another very old individual, 

 showing thickening of hinge. 



Fig. 3. OSTREA TORRESI Phil 98 



Upper Magellanian beds ; Punta Arenas. 



3#. Outer view of larger valve. 



3<5. Inner view of the same. 

 Fig. 4. GRYPH^A cf. TARDA Hutt. . . . . . . . . 113 



Patagonian beds ; southwest of Lake Pueyrredon. 



40. Inner view of larger valve. 



4^. Side view of the same. 



All figures are natural size. 



(VOL. iv) 



