E. LÖNNBERG, OX THE HARXESSED AXTELOPES. 7 



folloAving alterations must be made according to the descrip- 

 tions foiind in the literature. T. sylvaticns is said to have a 

 collar of short hair round the neck, and this is also the case with 

 delamerei. But on the other hand T. s. bor is declared by 

 Oldfield Thomas to have a well-haired neck. The group 

 of Bushbucks with well-haired necks appears thus to contain 

 T. s. knutsoni, T. s. hor, T. decula and meneliki. In all these 

 the dorsal crest is black. T. nigrinotatas belongs probably 

 to the same group. but as the male is not known as yet it 

 is difficult to discuss its affinity. The races, with more or 

 less short-haired necks, have all, more or less, white dorsal 

 crests. except T. muUicolor in which it is black. A grouping 

 of the forms in such a manner seems, however, more to 

 depend upon biological conditions than upon natural affinit}^ 

 Xeumanx has also indicated something like that when he 

 expresses his opinion that the Bushbucks with well-haired 

 necks chiefly inhabit mountainous districts and the others 

 lowlands. About T. s. knutsoni and meneliki this is a stated 

 fact. T. decula dwells in the bushy valleys of Central Abys- 

 sinia, T . hor lives among Bauhinias and Accacias further 

 north at Bahr-Salam river ^ etc. and Upper Nile. But just 

 through this it is made probable that the races with well- 

 haired necks are instances of a parallel development caused 

 by similar natural conditions, and they niay thus have their 

 nearest allies among races with short-haired necks. I am 

 therefore inclined to think that the races named knutsoni 

 and hor although well-haired on the neck belong to the 

 scriptus-^evies, and to the same may be counted ornatus, 

 {phaleratus) and perhaps fasciatus. All these are provided 

 ^\dth a (comparatively) well developed pattern of vertical 

 and longitudinal stripes. The East African T. roualeyni and 

 masaicus with only transverse stripes belong together, and 

 T. sylvaticus may be a further developed race of the same 

 series. T, darna and decula with only longitudinal markings 

 may form the centre of a third group from which the north- 

 eastern races, in which all stripes are lacking, may be off- 

 shoots. As the vertical stripes are not only developed in 

 the Bushbucks but also in members of the genera Boocercus, 

 Limnotragus, Sirepsiceros ond Taurotragus of the same section, 

 not to speak about others, it is evident that they represent 



' Heugltn: Reise in Xoidost-Afrika. Bd 2. Braunschweig 1877. 



