PATAGONIAN EXPEDITIONS ! PALAEONTOLOGY. 
EXPLANATION OF PLATE XLV. 
PAGE. 
Fig. i. Borhytna excavata : Left side of the skull (No. 15,120). The 
median premolar is supplied from the op- 
posite side ...... 348 
Fig. 2. Borhyaena tuberata : Right radius and ulna, outer side (No. 15,701). 352 
Fig. 2a. “ “ Right radius and ulna, inner side (No. 15,701). 
Fig. 3. “ “ Right half of mandible, crown view (No. 
15,701). The median premolar is restored 
from the opposite side .... 348 
Fig. 4. “ “ Rib, outer side (No. 15,701). . . . 352 
Fig. 5. “ “ Presternal segment from below (No. 15,701) 352 
Fig. 6. “ “ Seventh ? dorsal vertebra, right side (No. 
15. 70' 1 ) 35 1 
All the figures are natural size. 
(VOL. IV.) 
