GALAGO 75 



long again as the body ; feet large ; ears large. Posterior upper molar 

 tricuspidate ; third upper premolar very large. 



Color. Head, neck, rest of upper parts and outer side of limbs 

 dark bluish gray, washed sometimes on head and back with brown ; 

 (one specimen from Goz Abu Guma on the White Nile, is pale gray 

 washed with ecru drab on the back) ; orbital ring black ; stripe between 

 eyes and on nose white ; inner edge of thighs cream buff ; entire under 

 parts whitish ; hands gray ; feet whitish gray ; tail at base ecru drab, 

 remainder blackish, hairs tipped with white; ears black. 



Measurements. Total length, 483 ; tail, 303 ; foot, 75 ; ear, 43. 

 Skull : occipito-nasal length, 45 ; Hensel, 13 ; zygomatic width, 32 ; 

 intertemporal width, 18 ; palatal length, 19 ; width of braincase, 25 ; 

 median length of nasals, 13 ; length of upper molar series, 13 ; length 

 of mandible, 28; length of lower molar series, 13. 



This appears to be a well marked, long tailed, blue gray species 

 found in the valley of the White Nile, southward to the west of the 

 Victoria Nyanza, and to Mashonaland up to an elevation of 5,000 feet. 

 Eight specimens are in the British Museum Collection ; from Goz Abu 

 Guma on the White Nile north of Khartoum, Mashonaland at Mazse 

 5,000 feet elevation, and South Western Ankole, west of the Victoria 

 Nyanza at an altitude of 5,000 feet. It seems impossible to discover 

 any differences to separate these specimens. The skins with one excep- 

 tion closely resemble each other ; the exception being the one from 

 Goz Abu Guma, which is an ecru drab above, but others from the same 

 locality are the usual blue gray, and for lack of any evidence to the 

 contrary, we must attribute this difference to an individual peculiarity, 

 or to season, as it was taken in April, the blue ones in November. 

 More material and more knowledge of the seasonal changes, are neces- 

 sary before the value of many specific differences, so considered, can 

 be fully ascertained. The skulls vary considerably in size, but this 

 difference is probably caused by age or sex. In the Paris Museum is 

 a specimen. No. 187, which is recorded in the old Catalogue as Galago 

 SENNAARiENSis Type. This is probably the specimen called by Lesson 

 (1. c.) Galago acaciarum var. C. sennaariensis. It is the usual blue 

 gray animal, the specimen faded somewhat in the lapse of years, the 

 blue hue only remaining on top of head and upper back between the 

 shoulders, rest of upper parts and limbs assuming a brownish tint. 

 The tail is darker than the body and is now a reddish brown hue. The 

 ears are large and blackish, the under parts and inner side of limbs 

 whitish, and the skull is in the skin. 



