80 THE SELOUS COLLECTION". 



Family HIPPOPOTAMID2. 



HIPPOPOTAMUS. 

 HIPPOPOTAMUS AMPHIBITJS AMPHIBIUS. 



Hippopotamus amphibius, Linn. Syst. Nat. ed. 10, vol. i. p. 74, 1758 ; 



ed. 12, vol. i. p. 101, 1766. 

 Hippopotamus amphibius amphibius, Schwarz, Ann. Mag. Nat. Hist. 



ser. 8, vol. xiii. p. 31, 1914. 



Represented in the Collection by a single skull which is 

 provisionally referred to the typical race. The cranial characters 

 that have been used in differentiating the various races of Hippo- 

 potamus are such as can only be relied upon if supported by evidence 

 from large series of specimens ; the material in the Museum Col- 

 lection is not sufficient to permit of any definite decision being 

 made. 



Typical locality, Nile Valley. 



424 19. 7. 15. 504. Skull. Lower Euenya Kiver, 20 miles south 

 of Tette, Mozambique. 



Family 



GREVY'S ZEBRA. 

 EQTTUS (DOLICHOHIPPUS) GREVII. 



Equus grevyi, Oustalet, La Nature, vol. x. p. 12, figs. 1 and 2, 1882. 

 Dolichohippus grevyi, Heller, Smithson. Misc. Collect, vol. Ix. no. 8, p. 1, 



1912. 

 Equus (Dolichohippus) grevyi, Lydekker, Cat. Ungnlate Mamm. Brit. 



Mus. vol. v. p. 17, 1916. 



Distinguished from all the other Zebras by its much larger 

 head, the skull being elongated with a long diastenia between the 

 cheek-teeth and incisors, and the greater size of the ears. Body 

 coloration consists of a series of brownish black and buff or whitish 

 stripes of almost equal width except on the neck where the dark 

 stripes become broader. The stripes of the body are all transverse, 

 even those on the rump. 



Typical locality, Abyssinia ; range extends from north bank of 

 the Tana River northwards across the Northern Guaso Nyiro as 



