IO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



LASIOPYGA ASCANIUS KAIMOSI, new subspecies 

 Kavirondo White-nosed Monkey 



Type from the Upper Lukosa River., near the mission station of 

 Kaimosi, British East Africa; adult male, Cat. No. 182371, U. S. 

 Xat. Mus. ; collected by Edmund Heller, February 10, 1912 ; original 

 number, 2692. 



Characters. — Closely allied to Lasiopyga ascanius schmidti of the 

 Manyema and Uganda country from which it is distinguishable by 

 the brighter colored tail which is orange-rufous, the more blackish 

 limbs which lack reddish vermiculation and the general darker and 

 less reddish coloration of the upper parts. 



The type measured in the flesh : head and body, 550 mm. ; tail, 780 ; 

 hindfoot, 145; ear, 30. Skull: greatest length, 100; basilar length 

 68 ; zygomatic breadth, 68 ; post orbital constriction, 42 ; median 

 length of nasals, 16 ; length of upper molar series, 24 ; length of man- 

 dible, 70; length of lower molar series, 28. 



The Rainey Expedition collected a large series of specimens from 

 Kaimosi, the head of the Lukosa River on the lower slopes of the 

 Nandi Escarpment and the Kakumega Forest. This material is now 

 in the National Museum. It represents the eastern limits of the 

 ascanius group of Lasiopyga in Africa which has not previously been 

 reported so far east as British East Africa. They were found abun- 

 dant in the dense forests where they lived in proximity to colobus and 

 the large gray forest monkeys, Lasiopyga leucompax neumanni. 

 When alarmed they uttered a peculiar, low, chirping, bird-like note 

 very unlike the barking calls of other African monkeys. 



LASIOPYGA PYGERYTHRA TUMBILI, new subspecies 



Coast Tumbili Monkey 



Type from Ndi, Taita District, British East Africa ; adult male, 

 Cat. No. 182229, U. S. Nat. Mus. ; collected by Edmund Heller, 

 November 1, 191 1 ; original number, 2542. 



Characters. — A very pale desert race of Lasiopyga pygerythra 

 having the back olive-buff in color, the limbs grayish and the hands 

 and feet black only on their distal parts. The dorsal surface shows 

 none of the tawny reddish tint so prevalent in the other East African 

 races. From johnstoni of Kilimanjaro it may be distinguished by 

 its lighter dorsal coloration and smaller amount of black on the 

 hands and feet. Rubellus of the Kenia and Nairobi districts differs 



