PATAGONIAN EXPEDITIONS: PALAEONTOLOGY. 



EXPLANATION OF PLATE LI. 



PAGE. 



Fig. i. PROTHYLACYNUS PATAGONICUS : Right radius and ulna, outer side 



(No. 15,700) .... 368 

 Fig. w. " " Right radius and ulna, inner side 



(No. 15,700). 

 Fig. \b. " " Distal articular surface of radius and 



ulna (No. 15,700). 



Fig. 2. " " Right tibia from in front (No. 15,700) 369 



Fig. 3. " " Right fibula, inner side (No. 15,700) 370 



Fig. 4. " Seventh ? dorsal vertebra, right side 



(No. 15,700) 366 



Fig. 5. " " Fifth and sixth lumbar vertebrae, left 



side (No. 15,700) . . . 366 

 Fig. 6. " " Presternal segment from below (No. 



15.700) 367 



All the figures are natural size. 



(VOL. iv.) 



