460 MEMOIRS OP THE CARNEGIE MUSEUM. 



EXPLANATION OF PLATE LVIIL 



Fig. 1. Diceratherium nanuni, (Marsh) type. Peabody Museum of Natural 

 History, No. 10004. Front of skull from the side. 



Fig. 2. Diceratherium 7ianum, type. Front of jaws from the side. 

 Fig. 3. Diceratherium nanum, type. Alveolar border and dentition. 

 Fig. 4. Diceratherium cooki. Carnegie Museum, No. 1555. 



All figures | natural size. 



