740 



DR. A. GtTNTHER ON NEW MAMMALS. 



[Nov. 7, 



coronoid process, in which this form differs from most of the other 

 members of the group of Porcupines. 



Fist. 2. 



«. Skill of Trichys lipura, nat. size. b. Lower jaw, nat. size. 

 c. Lower molars ; d. L T pper molars : twice nat. size. 



The facial portion of the skull is compressed and rather elongate, 

 the nasal bones quite as long as the frontal suture, and extending far 

 more backwards than the suture between intermaxillary and frontal. 

 Frontals rather flat above, with projecting postorbital process, behind 

 which the skull is constricted. The zygomatic arch is strong, deeply 

 channelled along its whole length, and expanded along its lower edge ; 

 malar with projecting infero-posterior angle. Palate with a projecting 

 ridge on each side, commencing from the first molar, the ridges con- 

 verging in front of the foramina incisiva. Palatal notch opposite to 



