PATAGONIAN EXPEDITIONS : PALEONTOLOGY. 



EXPLANATION OF PLATE LXIL 



Skull, X i/i 



aculeatum) 

 aculeatuni) 

 aculeatum) 



Fig. T. Nematherium auca (type of Lymodon perfectus), 



Ameghino collection ........ 



Fig. \a, Nematherium AUCA (type of Zjj/^^^^^^^/^/^r/^^/'^^). Right upper teeth 



X i/i. Ameghino collection ...... 



Fig. 2. Nematherium pro fund atum (type of Ammotherium 



Skull, right side, X 3/5. Ameghino collection . 

 Fig. 2a, Nematherium profundatum (type of Ammotherium 



Skull, base, X4/5. Ameghino collection . 

 Fig. 2b, Nematherium profundatum (type of Ammotherium 



Mandible, X 1/ 1. Ameghino collection 

 Fig. 3. Nematherium angulatum (type of N, lavagnanum Merc). Right 



lower teeth, X i/i. La Plata Museum .... 

 Fig. 4. Nematherium declivum (type of Ammotherium declivum). Palate 



X I / 1 . Ameghino collection 



Fig. 4^. Nematherium declivum (type of Ammotherium declivum). Right 



lower teeth, X i/i. Ameghino collection .... 

 Fig. 5. ^"^^MATHEKivu s^, {Y^i^vrcd to Ammotherium profundatum). Palate 



Xi/i, Ameghino collection 



Fig. 6. Nematherium auca (type of Lymodon auca). Right lower teeth 



X i/i. Ameghino collection 



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(vol. v) 



