SUBORDER C 



PERISSODACTYLA 



133 



Inferior molars with two simple transverse crests occurring at right angles to 

 the longitudinal axis of the crown ; third molar without third lobe. 

 Phosphorites of Quercy and Bohnerz of Eselsberg, near Ulm. F. priscus 

 Filhol. In the John Day beds of Oregon is found P. robustus Sinclair, 

 which is probably generically distinct, as are also P. obUquidens Wortman, and 

 P. simplex Wortman and Earle, from the Oligocene White Kiver beds of 

 South Dakota. 



Palaeotapirus helveticus, Meyer sp. Lower Miocene (Bohnerz), Eselsberg, near Ulm. A, Right upper 

 third and fourth premolars and first molar. B, Lower molar, i/j. 



Tapiravus Marsh. Miocene ; New Jersey. Pliocene ; Kocky Mountains. 

 Very imperfectly known. 



Palaeotapirus Gaudry (Paratapirus Dep6ret) (Fig. 170). Premolars (P^ 

 and P^) in part simpler than the molars. P^ and P'^ oblong with two equal 

 crests, upper M trapezoidal. Pai-astyle of the P small, of the M large. P. 



Pig. 171. 



Skull of Tapirus bairdius Gill. Recent, Panama, i/g. 



helveticus Meyer sp. Lower Miocene ; Ulm, Mainz ; Briix, Switzerland ; De- 

 partment of Allier and Savoy. P. yagii Matsumoto. Miocene ; Japan. 



Tapirus Linn. (Elasmognathus Gill) (Figs. 167, 171). The three upper 

 posterior premolars molariform, but oblong ; anterior premolar triangular and 

 tritubercular. Superior canine separated from the first premolar by a long 

 diastema and brought near the incisors. Inferior molars with two transverse 

 crests placed at right angles to the long axis. The two posterior premolars 

 like the molars ; the anterior premolar elongate, triangular. Skull with nasal 

 bones very short, pointed in front, and elevated, sometimes supported by a 



