PATAGONIAN EXPEDITIONS;. PAL/EONTOLOGY. 



EXPLANATION OF PLATE LXIV. 



PAGE. 



Fig. i. PAL^EOTHENTES INTERMEDIUS : Skull, palatal view (No. 15,225) . 430 



Fig. la. " " " from above " 



Fig. 2. " MINUTUS : Left maxilla, palatal view (No. 15,709) . 432 



Fig. 3. ABDERITES CRASSIGNATHUS : Left half of mandible, outer side (No. 



15.079) 439 



Fig. 3. " " Left half of mandible, crown view (No. 



15.079)- 



Fig. 4. DECASTIS COLUMNARIS : Anterior portion of the right half of the 



mandible, outer side (No. 9594 American 

 Museum of Natural History). The pit- 

 ting on the anterior portion of the jaw is 

 pathological ...... 436 



Fig. 40:. " " Right ramus, crown view (No. 9594 Ameri- 



can Museum of Natural History). 



Fig. 5. CALLOMENUS LIGATUS : Right half of the mandible, outer side (No. 



15.066) . 435 



Fig. 5. " " Right half of the mandible, crown view (No. 



15,066). 



Fig. 6. DECASTIS COLUMNARIS : Left half of mandible from the outer side 



(No. 15,710) . 437 



Fig. 6a. " " Left half of mandible, crown view (No. 



All the figures are three times the natural size. 



(VOL. iv.) 



