OCR Text |
Show 740 DR. A. GUNTHER ON NEW MAMMALS. [Nov. 7, coronoid process, in which this form differs from most of the other members of the group of Porcupines. Fig. 2. a. Skill of Trichys lipura, nat. size. b. Lower jaw, nat. size. c. Lower molars ; d. Upper 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 hetween 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 converging in front of the foramina incisiva. Palatal notch opposite to |