466 



deep, l)ifid, the points reaching the vertical from the middle of m.^. 

 Length of the suture from maxillae to sutura frontalis almost 

 equalling the greatest combined breadth of the nasals. 



Nasopremaxillary not longer than the nasomaxillary suture. 

 Nasal notch rather deep, nasals projecting about 5 mm beyond their 

 junction with the premaxillae. 



Interorbital region very deeply concave in the middle, its 

 edges raised up into high, prominent sharp-edged ridges, running 

 parallel, and not uniting behind. 



Meatus auditorius externus swollen {as in Ps. peregrinus)] 

 bullae not inflated. 



Anterior palatine foramina short, extending backwards to the 

 level of p ' (or less). 



Posterior palate with two large foramina, extending from the 

 anterior border of m 2 till beyond m ^ , and only separated from the 

 border of choanae by a thread-thick horny bridge. 



Teeth. 



Teeth. Strong; diastema between i^ and canine about 3 mm, 

 molars ^~^ about 13 mm. 



Upper jaw: Anterior incisors separated in front, i^ elongated hori- 

 zontally; its anterior-posterior diameter equalling twice that of i-^. 



Distinct diastemata in front of and behind canine. 



Canine present, small , half the size of i 3 (in one specimen absent 

 on one side). 



Premolars: pi present, rudimentary, smaller than the canine 

 (sometimes absent on one| side). P^ absent i; p3 and p^ always pre- 

 sent , p 3 about half the size of p ^ , the latter about two thirds size of 

 first molar. 



Molars large; length of the series 17 mm. 



Lower jaw: 1 1 long, lancetshaped, broadest in the middle (as in 

 Ps. Albertisi)\ the upper and lower edge with an angle, separating the 

 enamel covered cutting portion from the root, which is narrower. 



1 2 present or absent, always minute, i ^ always absent. 

 Canine absent; pi present or absent, minute, p^ and p^ always 

 absent; p* present, long, tricuspid, rather broad behind. 



Molars as in upper jaw. 



Habits. Inhabits the Granite - Rocks , hiding itself during the 

 daytime amongst the colossal boulders, and leaving the rocks only at 

 night, when it ascends the trees in search of food. 



This consists principally of the soft parts of a kind of berry with 

 large stone, like a great cherry. 



1 In one specimen, (A) it is present, but perfectly rudimentary, its crown hardy 

 raised above the alveolus. 



