234 MR. R. LYDEKKER OX 



PlatU XXXIX. 

 Ariinella suhsalsa, J . 



Fig. 1. Aiiteniuile, X 140. 



2. Antenna, X 140. 



3. Sensory seta of antenna, X 300. 



4. Mandible and palp, X 140. 



5. Ma.xilla of first pair and labinm, X 84. 



6. Processus piliferns, X 84. 



7. Portion of ejaculator3' duct and sac, X 84. 



Plate XL. 

 Arunella subsalsa, $ cont. 



Fig. 1. Foot of first pair '^ 



2. ,, second pair > X 84. 



3. „ third pair J 



4. „ fourth pair, X 140. 



o. Posterior maxilla of right side, X 140. 



6. „ „ left side, X 140^ 



7. Caudal ramus, X 84. 



8. Copulatory organ, X 84. 



19. The Dwarf Buffalo of Southern Nigeria ; with a 

 Revision of the Dwarf Buffaloes of Western Africa *. 

 By R. Lydekker, F.R.S., F.Z.S. 



[Received November 14, 1912 : Read February 18, 1913.] 



(Text-fig-ures 42-44.) 



Index. Page 



Geographical : Africa, new Dwarf Buffaloes 234 



Systematic: Bos (Buhahis) caffer hnnti 240 



Bos (Buhahis) coffer heddhigtoni 240 



In 1910 I gave an account of certain Dwarf Buffaloes seen 

 and shot by Lieut. H. J. L. Thompson in the Yala country of 

 Southern Nigeina, between the Aloda towns of Echimoga and 

 Iveku-Okaku, in an open grassy country watered by tributaries 

 of the Yake f. The adult bulls were described as almost wholly 

 black, and the cows as dun or khaki-coloured ; immature bulls 

 being also dun. As I could not obtain specimens of these 

 Buffaloes for the British Museum, I refrained from giving them 

 a name. Recently, however, Lieut. A. W. Hunt, R.N., has 

 brought home from Southern Nigeria heads of Buffaloes doubt- 

 less belonging to the same race, and as he has presented one of 

 these, a cow, to the Museum, the time has come for naming the 

 South Nigerian Buffalo. 



* [The complete account of the two new races described in this paper appears 

 here, but since the names and preliminary diagnoses were published in the 'Abstract,' 

 they are distinguished by being underlined. — Editor.j 



t See my book 'The Ox and Its Kindred," p. 242, 1912; in line 10 from bottom, 

 cow should be hull. 



