120 COLOBUS 
GEOGRAPHICAL DISTRIBUTION OF THE SPECIES AND SUBSPECIES. 
The members of the genus CoLogpus are pretty evenly divided 
between the east and west coasts of Africa, in the central portion of 
the continent, being found from Abyssinia to Nyassaland on the east, 
and from Gambia and Lake Chad, Nigeria, to Angola on the west. 
Beginning with Abyssinia, in the Province of Godam and Kulla of the 
south and west, C. aByssinicus is found, ranging eastward probably 
into Somaliland; while in the forests through which the Omo flows C. 
POLIURUS dwells, and in the vicinity of Harrar at Abassie not far from 
the Somali border, C. GALLARUM was discovered, the extent of its 
range, however, unknown. Passing southward to the west of Lake 
Albert on the borders of Uganda and the Congo State the undescribed 
form in the Berlin Museum, from Avakubi, Lake Albert, is met with, 
and west of the north end of Lake Albert Edward, C. ELLIoTI was dis- 
covered. On Mount Ruwenzori, at an elevation of 4,000 feet, C. 
TEPHROSCELES was found, and on the north west flank of the same 
mountain, in the country of the Buambas, C. RuwWENzoRI was obtained. 
In the vicinity of Mt. Kenia, C. cauDATUS was met with, and it extends 
its range to Mt. Kilimanjaro in German East Africa. At Muniuni, 
near Mombassa, C. RUFOMITRATUS was discovered, and opposite Zanzi- 
bar C. PALLIATUS was found, its range not yet ascertained. C. KIRKI 
is restricted to the Island of Zanzibar, never found on the mainland, 
and now nearly extinct. Between Lake Tanganyika and the Upper 
Congo, C. FOAI ranges, and west of the same great lake, C. GRAUERI 
was taken at Wabembeland. In the Ituri forest, and southward to 
the Tanganyika-Nyassa Plateau, C. SHARPEI ranges. In German East 
Africa at Udschumgwe Berge, C. GcopoNorum is found. 
In West Africa commencing at the most northern part where any 
species of CoLosus dwells, we find in Senegambia, C. Bouvierr; C. 
FULIGINOSUS; and C. VELLEROSUS; the last ranging to the Gold Coast, and 
C. SATANAS going to the Gaboon. In Sierra Leone C. FERRUGINEUS is 
found going into Liberia, while in the southern portion of Sierra Leone, 
C. RUFONIGER is also met with, and C. potycomus going to Liberia. 
Fantee and Ashantee have C. vErus, which is also stated to inhabit Li- 
beria. In Nigeria from Lake Chad, through Central Africa along the 
Upper and Lower Congo to Victoria Nyanza, C. occidentalis has its 
range. At Barombi in Cameroon, C. prEussI was found; while in the 
Congo River forest were obtained C. nicrimaNnus at Lirranga, C. 
OUSTALETI in the Youmba country, and C. THOLLONI, exact locality not 
known. On the Island of Fernando Po, C. PENNANTI is met with, and 
