Races of African Ungulates. 33 



in the type, l)ut parallel or even couverf^ing in other speci- 

 mens. Pedicle of horn short, less erected than in tschadensis ; 

 angle formed by pedicle and middle portion smaller than 

 in tschadensis, but distinctly less than in the Nile forms, 

 B. I. lelwel and B. I. roosevelti. 



Dimensions of type skult. Basal length 377 mm. ; greatest 

 length 477; palatal length 215; zygomatic width 126; 

 postorbital width 129 ; occipital width 120 ; length of 

 nasals 213 ; length of upper tooth-row (alv.) 94'6 ; distance 

 from first premolar to gnathiou 137 ; horns, length along 

 curve 413, greatest width 210. 



Although nearer to B. I. tschadensis, this new race is some- 

 what intermediate between the Chad form and the races of 

 the eastern Sudan. It is, however, less red than either of 

 the latter, and has more erect horn-pedicles, which still more 

 approach the type found in B. I. tschadensis, from which it 

 is easily distinguished by its smaller size and darker, more 

 reddish colour. 



Bubalis major invadens, subsp. n. 



Type locality. Garua, Benue River, Adamaua. 



Type. J old. Senckenberg Museum. Journal no. 408 

 (skull). 



Skull. Forehead slightly convex, but not so much bent 

 upwards as in B. m. major. Jugal generally broad, but its 

 anterior margin not square as in B. m. major and B. m. 

 matschiei, and gradually passing into the masseteric crest of 

 the maxilla. 



Horns. Rather wide and strongly laid backwards. Angle 

 furmed by tips and middle portion very large; middle por- 

 tion short, almost not twisted, generally straight and scarcely 

 converging. Tips long, thick, parallel or slightly divergent. 



This race has much stronger horns than B. m. major, the 

 middle portion of which is less twisted ; the skull differs 

 conspicuously in the configuration of the forehead and jugal. 

 A large serits of skulls from Ihi and Zungcru, N. Nigeria, 

 have been examined in the British Museum, a more detailed 

 account of which will be published later. 



Dimensions of type skull. Basal length 419 mm.; greatest 

 length 521; palatal length 252; zygomatic width 133; 

 postorbital width 142; occipital width 138; length of 

 nasals 235 ; length of upper tooth-row (alv. j 108 ; distance 

 from first premolar to gnathion 152 ; liorns, length along 

 curve 475 (tips worn), greatest width 310, distance of 

 tips 228. 



Ann. cC' Mag. X. llist. Ser. y. Vid. xiii. 3 



