36 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I49 



SI. 



MO. 



2b 



f.i.p.xn 



MO. 



Tu. 



Fig. 2. — Mcniscotherium chamense Cope. Natural endocranial cast (A.M. 

 48082) ; a, dorsal view ; b, lateral view of left side. Natural size. 



Fig. 3. — Meniscotherium robustum Thorpe. Natural endocast of skull (U.S.N.M. 

 23113), dorsal view. Natural size. 



Fig. 4. — Meniscotherium robustum Thorpe. Endocast of cranial roof (U.S.N.M. 

 19509), dorsal view. Natural size. 

 For explanations see opposite page. 



