PATAGONIAN EXPEDITIONS : PALAEONTOLOGY. 
EXPLANATION OF PLATE XXI. 
PAGE 
Fig. 
i. 
Nesodon imbricatus : Premaxillae from the front, X t- Ameghino 
collection. Di- — First milk-incisor. 
126 
Fig. 
2 . 
“ “ Symphysis mandibuli, ventral view, X x- 
Amegh. coll. Di — Second milk-incisor. 
1 27 
Fig. 
3 - 
Adinotherium ovinum : Left pes, dorsum, X x (Nos. 15,966 and 
15,131). Cn. 1 -j- 2 = Ankylosed 
ento- and mesocuneiforms. Cb. = 
Cuboid. ...... 
215 
Pig- 
4 - 
“ “ Right manus, dorsum, Xi (Nos. 15,158 
and 15,131). Sc. = Scaphoid. Td. — 
Trapezoid. P. = Pisiform. V. = Ves- 
tigial fifth metacarpal. 
2 1 1 
Fig. 
5 - 
“ “ Left calcaneum, from tibial side, X t (No. 
15,131). . . ... 
216 
Fig. 
6. 
“ “ Left astragalus, plantar side, X t (No. 
15,130 
215 
Fig. 
7 - 
“ “ Left carpus, proximal end, X t (Nos. 
15,158 and 15,131). Sc. = Scaphoid. 
P. — Pisiform. ..... 
2 1 1 
Fig. 
8. 
“ “ Metatarsals of left pes, proximal ends, 
X t (No. 15,966) 
216 
Fig. 
9 - 
“ “ Metatarsals III and IV, right pes, side 
view, X t (No. 15,966). 
2 1 7 
Fig. 
IO. 
“ “ Metatarsal IV, right pes, distal end, X x 
(No. 15,966) 
217 
Fig. 
ii. 
Nesodon imbricatus : Anterior thoracic vertebra, from the left side, 
X i (No. 15,967) 
147 
(VOL. VI.) 
