284 Mr. R. I. Pocock on 



BothschiMi, JjyM. Nov. Zool. vii. pp. 595-596 (1900), and 

 viii. pi. i. fig. 2 (1901). 



Loc? 

 Johnstonty id. loc. cit. pp. 595-596. 



Loc. Lake Tanganyika (northern extremity). 



Tlie best-marked of these forms appears to be Rothschildi, 

 of wliicli I have seen no specimens. 



The remaining examples examined and named by 

 Mr. Lydekker are in the Natural History Museum, as well 

 as three others received since his paper was written. Two of 

 these three are from Budzi (3000 feet) in Uganda ; the third 

 is labelled " Cameroons,^^ but this locality is, I think, open to 

 grave suspicion. This specimen is long-coated. The mantle 

 on the nape and shoulders is brown strongly tinged witii 

 iron-grey. Tliere is also a considerable quantity of grey in 

 the hair on the fore part of the chest and outer side of the 

 thigh. Except that there is more grey in the coat, this 

 example is very like the type of alhigena, which is young. 

 I believe it represents the adult phase of that species, and 

 JMr. Lydekker has given it the name albigena. In its grey- 

 ness it differs from the two examples from Uganda, in which 

 there is no grey in the brown mantle or on the outer sides of 

 the legs, which are black. One of these specimens is browner 

 than the other and both are rather browner than the type of 

 Johnstoni. Nevertheless I believe the three specimens, which 

 appear to be adult, are representatives of one and the same 

 subspecies. 



From an examination of all these skins, no two of which 

 are absolutely alike, I am compelled to believe that two, and 

 only two, subspecies are involved, namely a western and an 

 eastern, the former being alhigena and the latter Johnstoni. 

 Neumann identified the eastern form from Uganda as 

 aterrbnvs ; but for geogroj)hical reasons it appears to me 

 more probable that the type of aterrimus was a young 

 example of alhigena. If so, aterrimus falls as a synonym of 

 alhigena. If, on the other hand, Neumann is right in his 

 determination, Johnstoni falls as a synonym of aterrimus. 



It must be borne in mind that Neumann discovered the 

 young of the L^^ganda I'orm to be unitbrmly black (Zool. 

 Jahrb. xiii. p. 5o3, 1900). From this it may be inferred 

 that the young of the Congo form {alhigena^ is also black. 

 The skins I have seen bear out this interence. Hence, so far 

 as colour is concerned, the type of aterrimus might be the 

 voung or the brown- or grey-mantled race. It cannot, on 



