EAST AFRICAN MAMMALS IN NATIONAL MUSEUM. 11 
Order PRIMATES. 
Family LORISIDA. 
Genus PERODICTICUS Bennett. 
1831. Perodicticus BENNETT, Proc. Zool. Soc. London, 1831, p. 109. (P. potto.) 
A single form of the West African potto inhabits the Congo Forest 
Zone in the immediate vicinity of Victoria Nyanza, where specimens 
were collected by the Rainey Expedition in January and February, 
1912. 
PERODICTICUS IBEANUS Thomas. 
1910. Perodicticus ibeanus THomas, Abstr. Proc. Zool. Soc. London, No. 81, p. 17. 
March 22. (Kakumega Forest, near Mount Elgon, British East Africa 
type in British Museum.) 
Specimens.—Six from the following localities: 
British East ArricaA: Kaimosi, 5 (Heller); Lukosa River, 1 
(Heller). 
Five specimens out of the above series are fully adult, and four of 
these are males. The single female skin is decidedly grayish, lacking 
entirely the rich, dark, ferruginous color of the males. The differ- 
ence is really very striking but does not, perhaps, signify a genuine 
sexual variation. The female, collected at Kaimosi February 4, was 
nursing a small young one 142 millimeters in length. The young 
animal is clothed in a whitish woolly coat washed with a faint 
cinnamon tinge on the dorsal surface; the underfur, especially of the 
neck, is gray. Stomach contents of the males, as recorded by the 
collector, consisted of white grubs and one large caterpillar for one 
specimen and seven small snails and some gelatine-like matter for 
another. The entire skinned body of one adult male is preserved in 
alcohol. 
For measurements of specimens see page 14. 
Family GALAGIDA. 
Genus GALAGO Geoffroy. 
1796. Galago GEorrroy, Mag. Encycl., 1796, vol. 1, p. 49. (G. senegalensis.) 
1811. Macropus FiscHEer, Mém. Soc. Moscou, vol. 1, p. 12. (G. senegalensis; not 
Macropus Shaw and Nodder, 1790.) 
1811. Otolicnus In11GER, Prodr. Syst. Mamm. et Avium, p. 74. (G. senegalensis.) 
1854. Chirosciurus GERvaIs, Hist. Nat. Mamm., vol. 1, p. 159. (G. senegalensis.) 
1859. Otolemur CoquEREL, Rev. et Mag. Zool., ser. 2, vol. 11, p. 458. November. 
(G. agisymbanus=G. garnettii.1) [Valid as a subgenus. ] 
1863. Otogale Gray, Proc. Zool. Soc. London, p. 139. (G. garnettii.) 
1 See Thomas, Ann. and Mag. Nat. Hist., ser. 8, vol. 20, p. 48. July, 1917. 
