LASIOPVGA 357 



to all this part ; upper parts of body to tail much redder, speckled 

 ochraceous rufous and black, becoming darker towards root of tail 

 where the speckling is less ; flanks gray, speckled on apical half of hairs 

 with yellow and black; outer side of arms and hands black, speckled 

 to elbows with cream color; legs pale gray, speckled with white; feet, 

 posterior half speckled gray and white, anterior half and toes black ; 

 whiskers yellowish gray annulated at tip with black and yellow; entire 

 under parts and inner side of limbs whitish yellow ; tail above black, 

 beneath yellowish with black mixed, and grading into black towards 

 the tip ; ear tufts buff. Ex type British Museum. 



Measurements. Total length, 1,295; tail, 705; foot, 115, (skin). 

 Skull : total length, 90 ; occipito-nasal length, 78.3 ; intertemporal width, 

 37.6; Hensel, 54.8; zygomatic width, 56.2; width of braincase, 51.1; 

 median length of nasals, 16.5; palatal length, 31; length of upper 

 molar series, 23 ; length of mandible, 56.3 ; length of lower molar 

 series, 26.7. Ex type British Museum. 



The specimens from Gaboon are much paler than those from the 

 Benito River even when examples of the same sex are compared. 

 The head, upper part of back, legs and under parts of body are much 

 paler in their different colors, 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 cranial characters, which, if 

 sustained by a number of individuals, would be sufficient to give to this 

 form specific rank. On comparing the skull of the type with that of 

 a female from the Benito River, the great difference in the superior 

 outline is se.en. 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, which then drops more than a 45° 

 angle to the occipital. The skull of this female from the Benito River 

 has a flat frontal on a line with the orbital ridge, and descends much 

 more rapidly from the fronto-parietal suture to the occipital ; the 

 anterior portion of the nasals in the type is nearly at a right angle to 

 the posterior portion, the projecting forward occurring at about mid- 

 way their length, causing the narial opening to be horizontal save for 

 its anterior third ; the rostrum of the Gaboon specimen is narrower ; 

 the palate is narrower and deeper, and the molar series are longer by 

 the width of a molar tooth ; the zygomatic arches are different in shape, 

 that of the type curving rapidly inward anteriorly, while those of the 

 San Benito River examples are straight for nearly their whole length. 



