PATAGONIAN EXPEDITIONS : PALAEONTOLOGY. 
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EXPLANATION OF PLATE VIII. 
PAGE 
Interatherium : Composite fore foot, based primarily on the fore 
foot of I. robustum (No. 15,348). The trape- 
zium is drawn from No. 15,041 (/. externum). 
The phalanges of digits II, IV, V and the 
terminal phalanx of digit III are from No. 
15.401. 56 
robustum : Right pes, dorsum (No. 15,401). 
Slightly restored from other speci- 
mens. The cuboid is broken above 
metatarsal V. .... 58 
extensum: Left femur from in front (No. 15,041). 57 
“ “ “ “ behind “ “ 57 
robustum : Right tibia and fibula from in front (No. 
15.401) . 57 
“ Right tibia and fibula distal end (No. 
15.401) . The elements' are slightly 
dislocated. . . . . . 57 
“ Left humerus from in front (No. 15, 100). 
Partly restored from other specimens. 55 
“ Right scapula, side view (No. [5,348). 54 
sp. Left ulna, outer side (No. 9557 American 
Museum). . . . . . . 55 
“ Right radius, from in front (No. 15,401). . 55 
robustum: Axis, side view (No. 15,401). The 
transverse processes are restored 
from other specimens. . . . 52 
Axis from below (No. 15,401). The 
transverse processes are restored 
from other specimens. . . . 52 
“ Atlas from above (No. 15,401). . . 52 
“ “ “ below “ “ . . 52 
“ “ “ behind “ “ . . 52 
“ Skull from the left side (No. 9263 
American Museum). . . . 49-52 
extensum: Skull from above (No. 15,041). . . 49-52 
“ “ “ below “ “ . . 49—52 
robustum: Skull from behind (No. 9263 American 
.Museum). ..... 49-52 
