PATAGONIAN EXPEDITIONS: PALEONTOLOGY. 



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EXPLANATION OF PLATE XIL 



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Proterotherium PRiNCiPALE : Left pes, dorsum, Xj'-^. (No. 15,436.) 60 



" " The same, outer side, X y. (No. 



15.436.) 



Proterotherium dodgei : Pelvis and sacrum, ventral view. (No. 



15.107-) 59 



Thoatherium MiNUSCULUM : Atlas, dorsal view. (No. 15,721.) . 87 



" " The same, left side. (No. 15,721.) . 



" " Axis, left side. (No. 15,721.) . . 87 



" " ? Fifth cervical vertebra, anterior end. 



(No. 15,719.) .... 88 



" " Anterior thoracic vertebra, left side. 



(No. 15,719.) .... 89 



" " Median thoracic vertebra, left side. 



(No. 15,719.) .... 89 



" " Posterior thoracic, right side. (No. 



15.719-) 89 



" " Last lumbar, dorsal view. (No. 15,734.) 89 



" " Left humerus, distal end. (No. 15,721.) 90 



" " Distal view of humeral trochlea. 



(No. 15,721-) .... 



" " Distal view of left ulna and radius. 



(No. 15,721.) .... 91 



" " Left femur, dorsum. (No. 15,719.) . 94 



" " Left femur, distal view. (No. 15,719.) 



" " Right tibia and fibula, dorsum. (No. 



15.719-) 95 



" " Distal view of right tibia. (No. 15,719.) 



All figures, except figs, i and la, three-fourths natural size. 



(vol. VII.) 



