MAMMALIA. 



15 



been two brandies. Diceratherium had a transverse pair of horns 

 on the nasal bones. Several species are found in American Pliocene, 

 but none later. The living species have three toes on each foot, 

 and horns on the median line. 



No. 21. [89] Rhinoceros Platyrhinus, Falconer and Cautley. 



Skull (cast). This is one of tlie four new species brought to light by tlie 

 researches of Falconer and Cautlej% in that sepulchre of gigantic Mammals — 

 the Pliocene deposits in the Sewalik Hills, India. This very perfectly pre- 

 served skull is now in the Britisli Museum. Size, 30 x 18. 



No. 



[98] Rhinoceros tichorhinus, Cuv. 



Two Molars (cast). These specimens show the folding 

 of the enamel and the resultant figure of the crown-surface 

 in molars from the upper jaw. From the Diluvium in 

 France. Originals in the Ward Museum, University of 

 Rochester. 



FAMILY TAPIRID^. 



This is another family of American origin. It began in the 

 Eocene, and exists to-day in South America, and East India. They 

 have three toes on the hind feet, with four on the fore feet, but the 

 axis of the arm passes through the third digit. It is the most gen- 

 eralized type of living Perissodactyla. 



