SUBORDER B 



HYRACOTDEA 



251 



Geniolujus Andrews. Premolars simple, lower molars pig-like, the upper 

 ones Brachyodus-like. G. minis Andr. 



Bunohyrax Schlosser. Premolars complex, upper ones rounded and tri- 

 angular. Lower molars with true crescents. 



Mixohyrax Schlosser (Fig. 334). Upper premolars quadrangular. Molars 

 lophodont. M. nilotims Schl. 



Pachyhyrax Schlosser. Spurs on the ridges of the upper molars. 



Fig. 334. 



Mixohyrax iiiloticus Schlosser. Oligocene, Fayum, Egypt. A, Skull, palatal aspect. 

 B, Right ramus of lower jaw from within. 1/4. 



Saghatherium Andrews. The size of a sheep. Upper premolars much 

 simpler than the molars ; upper molars lophodont, lower ones lophoselenodont. 

 Diastema very short. S. antiquum Andr. 



Megalohyrax Andrews. The largest of all Saghatheriidae. Premolars 

 almost entirely like the molars. M. eocaenus Andr. 



Pliohyrax Osborn {Leptodon Gaudry). Lower jaw without diastema, /g, 

 both canines as well as P and P are premolariform. Lower Pliocene of 

 Pikermi and Samos. P. graecus Gaudry sp. 



Family 3. Myohyracidae Andrews. 

 Molars extremely hypsodont, but with distinct roots. 



Myohyrax Andrews, Known only by part of the dentition. Pattern of 

 molars resembling that of much-worn molars of the more hypsodont species 

 of Hyrax. M. oswaldi Andrews, as big as a large rat, from Lower Miocene, 

 Kachuku, British East Africa. 



Protypotherioides Stromer. Species larger than M. oswaldi. Miocene, 

 S.W. Africa. 



