KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 48- N:0 5. 



21 



Distribution 



of genus or 



subgenus 



Distribution 

 of species and 

 closely allied 

 forms. 



Fores ts ■ mammals 



Nairobi 

 xerophile 



forests 



Escarp- 

 ment 



Kenia 



Meru 



At. 

 A 



.» 



Ea Wc 

 A 



E (We) 

 A 

 E 



E Wc 



Mungos sanguineus orestes Helleb 



Felia pardus Lin 



Heliosciurus kenim Ketjmann 



Paraxerus jachaoni De Winton {capitis Thos.) 



» » kahari (Hkllee,) 



Otomya irroratus elgon/ia WKOUGHTOif 



Dcndromys insignia Thomas 



Epimys jachaoni Dk Winton 



» dennioB Thomas 



Leggada triton Thomas 



Gricetomys gambianue kenyenais Osgood . . . 



Lophuromya aquilua zena (Dollman) 



Arvicanthia pulchellua maaaaicus (Pagenst.) . . 

 » pumilio diminutua Thomas .... 



Lopfdomys ibeanus Tmomas 



Procavia (Dendrohyrax) crawahayi Thomas . . 



{Elephas africanua peeli Lydekker) 



Potamochcerua chcsropotamua kenice Lonnbeeq . 



Hylochosrua meinertzhageni Thomas 



Gephalophua harveyi kenice Lonnberg . . . 



Oephalophvs sp 



Neaotragus moachatua v. Dubbn 



Tragelaphua haywoodi Thomas 



Boocercus eurycerus isaaci Thomas 



Buffelua caffer radcUffei Thomas 



+ 



+ 



+ 



+ 



+ 

 + 



+ 



+ 

 Mau 



+ 



+ 



+ 

 + 



( + ) 



+ 



( + ) 



+ 

 + 

 + 

 + 

 + 

 + 



(+) 

 (+) 

 (+) 



+ 



+ 



+ 



+ 

 + 

 (+) 



(+) 



+ 

 + 



A short discussion of the geographical distribution of these animals collected 

 or observed by this expedition in British East Africa may not be out of the way. 

 Before this is begun, however, a few words ought to be said about some of the 

 principal zoogeographical systems applied to the African continent. The perhaps 

 best known is that of Wallace^ from the year 1876. He proposed »three great 

 continental subregions* cutting off from the Ethiopian region the land to the north 

 of Sahara,^ which was laid to the Palearctic region. These three subregions were: 

 l:o the East African, which principally included »the open pasture lands of interior 



tropical Africa*^ — — »with a hot and dry climate and characterised by 



a grassy vegetation interspersed with patches of forest* ; 2: o the West African » being 

 almost wholly dense forests where not cleared by man, and having the hot moist 



' 1 Geographical Distribution of Animals. Vol. I p. 251. 



8 Tiiis proceeding is of course artificial and arbitrary. As far as the mammals are concerned at least, 

 North Africa is (or has been) a border-land which has received contingencies as well from the Palearctic as from 

 Ethiopian regions and its fauna is mixed containing still elements from both, but probably the Ethiopian ele- 

 ments formerly have been more numerous than they are in the present time. 



3 Or »all the open country of tropical Africa south of Sahara* (1. c p. 258). 



