'2('>'2 Dr. D. G. Elliot on opparenlly new 



hands black, speckled ■with cream-colonr ; legs pale grey, 

 speckled with white ; feet, posterior half speckled grey and 

 ■white, anterior half andt.ios black ; whiskers yellowish grey, 

 annnlated at tips witli black and yellow ; tail above black, 

 beneath yellowish with black mixed and grading into black 

 to-wards the tip ; ear- tufts buff. 



Measurements. Total length 1295 mm.; tail 705 ; foot 

 115 (skin). Sknll : total length 90; occipito nasal length 

 78'3 ; intertemporal width 37-6 ; hensel 54*8 ; zygomatic 

 width 56'2 ; -width of brain-case 5ri ; length of nasals 165; 

 palatal length 31 ; length of npper molar series 23 ; length 

 of mandible 563 ; length of lower molar series 26"7. 



Type in British Musenm, no. 86. 6. 7. 2. 



The specimens from the Gaboon are much paler than 

 those from the Benito Eiver, even when examples of the 

 same sex are compared. The head, npper part of back, legs, 

 and under parts cf body are much paler in their several 

 colours, and the dorsal region is paler and brighter, appearing 

 more red^ and there is an absence of clear black at root of 

 tail^ the speckling of the back continuing to the tail. There 

 exist several points of difference in the character of the 

 crania, ■which if sustained by a number of individuals would 

 be sufficient to give to this form specific rank. On com- 

 paring the skull of the type with that of a female from 

 the Benito River, the great difFerence in the superior outline 

 is at once observed. In the Gaboon skull there is an abrupt 

 rise of the frontal from the posterior base of the orbital 

 ridge, with a gradual curve to the fronto-parietal suture, and 

 the line then descends rapidly to the interparietal suture, 

 and then drops at a n ore tl an a 45° angle to the occiput. 

 The skull of the Benito Kiver female has a flat frontal, on 

 a line with the orbital ridge and descends much more 

 rapidly from the fronto-parietal suture to the occiput ; the 

 anterior portion of the nasals in the type is nearly at a 

 light angle to the posterior portion, the projecting forward 

 occurring about midwaj' the length, causing the narial 

 opening to be horizontal save for its anterior third; the 

 rostrum of the Gaboon specimen is narrower, the palate 

 narrower and deeper, the molar series longer by the width of 

 a tooth ; zygomatic arches of a different shape, those of the 

 Benito River examples are straight for nearly their whole 

 length, while those of the type curve inward rapidly ante- 

 riorly. Even comparing the skull of a male from the Benito 

 River with that of the type of C. p. jjaliidus the much higher 

 elevation of the frontal bone in the latier is remarkable, 

 and the more prominent anterior portion of the nasals is 

 conspicuous. 



