BOVIN.E 57 



outer part of the horns, which (unlike those of the next two 

 races) extend forwards considerably in advance of the plane 

 of the greatly developed basal bosses. 



7. 10. 25. 4. Skull, witli horns, provisionally referred to 

 this race. Portuguese East Africa. The tips of the horns 

 turn backwards, so that they do not actually project in 

 advance of the plane of the basal boss. 



Presented hy F. Vaughcin Kirhj, Esq., 1907. 



I. — Bos caffer azrakensis. 



Bubalus azrakensis, MatscJiie, Sitzher. Ges. nat. Freiinde, 1906, 



p. 169. 

 Bos caffer asracensis, Lyde'k'kci', Game Animals of Africa, p. 70, 1908. 

 S^'ncerus azrakensis, Hollister, Proc. Biol. Soc. Washington, vol. xxiv, 



p. 192, 1911. 



Typical locality Dar Eoseires, on the Bahr-el-Azrak, 

 Egyptian Sudan. 



The horns have an inward curvature from the point of 

 maximum span very similar to that found in the next race 

 (wiesei), but the backward trend is less developed, and the 

 tips have a distinct downward trend. 



Type in the Berlin Museum. 



jSTo example in collection. 



J.— Bos caffer wiesei. 



Bubalus wiesei, Matscliie, Sitzher. Ges. nat. Freunde, 1906, p. 168. 

 Bos caffer wiesei, Lydehker, Game Animals of Africa, p. 70, 1908. 

 Syncerus wiesei, Hollister, Proc. Biol. Soc. Washington, vol. xxiv, 

 p. 193, 1911. 



Typical locality Middle Zambesi Valley, between Loangwa 

 and Eevegu, or near the point of entrance of the Eevabwe 

 Eiver. 



Characterised, according to its describer, by the pronounced 

 backward flexure of the middle portion of the horns, and the 

 existence of a backward trend in the outer portion, although 

 the tips are not distinctly bent downwards. 



Type in Berlin Museum. 



86. 5. 5. 1. Skin, mounted, provisionally referred, from 

 its locality, to the present race. ^lashonaland ; shot by F. C. 

 Selous, Esq., September Stli, 1885. Purchased, 1886. 



