T\\'0 XRW" EAST AFRICAX PRIMATES 

 By N. HOLLISTER 



All of the East African monkeys and lemurs in the collection of 

 the United States National Museum have now been critically exam- 

 ined, and two forms have been found which require description. One 

 of these was collected by the Smithsonian African Expedition in 

 i(;a;. and one by the Paul J. Rainey Expedition in 191 1. 



GALAGO SOTIKiE sp. nov. 



Type from Telek River. Sotik. British East Africa. No. 184205. 

 U. S. Nat. Mus. Male, adult, skin and skull. (Basal suture closed.) 

 Collected May 22. 191 1, by Edmund Heller (Paul J. Rainey African 

 Expedition) ; Orig^. No. 1830. 



Allied to Galai^o hraccatus Elliot and Galaf^o albipcs Dollman. but 

 larger, with longer tail, larger hind foot, and larger ears. Darker 

 than braccatus and without the brightly colored limbs of that species. 

 General coloration much as in albipes, but legs and feet less bufify 

 cinnamon and toes less whitish, not sharply marked from color of 

 feet. 



Color of type specimen. — General color of upperparts mouse gray, 

 washed with bulTy ; underfur deep mouse gray. Nose light gray ; 

 eye rings and ears blackish. Arms and hands bufify gray, much like 

 color of back and sides ; legs slightly lighter than back, with suffusion 

 of buffy yellowish along inner side and extending over top of feet ; 

 toes paler gray, with less intermixture of buff. Underparts gray, 

 heavily washed with pale yellowish buff. Tail brownish gray, more 

 brownish over terminal half, and slightly lighter below. 



Skull and teeth. — Skull averaging larger than in Galoi^o braccatiis. 

 with considerably larger auditory-mastoid buUse. Upper tooth row 

 slightly longer but last molar relatively smaller. 



Measurements of type specimen. — Head and body. 200 mm. ; tail 

 vertebrae. 295 ; hind foot. 76 ; ear. 46. Skull: Greatest length. 40.4 ; 

 condylobasal length. 43.6; greatest breadth. 32.9: zygomatic breadth. 

 32.8; mastoid breadth. 26.3; interorbital breadth. 5.4; length of 

 mandible. 28.2 : upper tooth row. canine to ;;; ^ inclusive. t6.8. 



Three specimens from the type localit\-. 



Smithsonian Miscellaneous Collections, Vol. 72, No. 2 



