i Mr. W. E. de Winton on 



Meriones Schleyelii, Smuts, Enum. Mamm. Cap. p. 41, pi. xliii. figs. 1-5 



(1832). 

 GerhiUus africanus, F. Cuv. Trans. Zool. Soc. ii. 18-36, p. 143, pi. xxvi. 



fip-s. 5, 9. 

 GerhiUus afer, Smith, 111. Zool. S. Afr., Mamm. pi. xxsv. (1842). 

 ? GerhiUus tenuis, var. Schinzi, Noack, Zool. Jahrb. iv. 1889, p. 134. 



This species has a very wide range, forms which so far 

 seem specifically inseparable from the Cape specimens 

 occurring in Mashunaland and Nyasaland. 



GerhiUus [Tatera] Brantsi, Smith. 



GerhiUus Brantsii, Smith, Rep. Exped. Int. S. Afr., App. p. 43 (1836). 

 GerhiUus montanus, Smith, 111. Zool. S. Afr., Mamm. pi. xxxvi. fig. 1 



(1842). 

 Merio7ies {Rhomhomys) niaccalinus^ Sundeval, CEfvers. Vet.-Ak. Stockh. 



1846, p. 120. 



The Museum is indebted to Mr. Thomasset for a fine 

 series of this Gevbil, clearly proving it to be distinct from 

 G. ofer \ the species is well figured and described by Smith 

 (111. Zool. S. Afr., Mamm. pi. xxxvi.). 



Hah. Transvaal. 



GerhiUus {Tatera) LohenguJce, sp. n. 



In size and proportions this Gerbil closely resembles G. ofer. 

 The colour of the dorsal region is pale fawn, very finely 

 grizzled with dull black ; on the sides there is no grizzling 

 and the colour pure fawn ; an abrupt line divides the colour 

 of the upper parts from the lower, which are all pure white. 



The colour of this animal is very constant, and so diff'ers 

 from G. afer and G. leucogaster, in both of which the general 

 colour is more rufous or chestnut and the grizzling coarser. 



The skull difi'ers from its allies chiefly in having a narrower 

 facial portion, being very narrow across the nasals and 

 maxillffi between the infraorbital foramina. 



The first upper molars are very persistently cuspidate, the 

 second lobe being divided into a pair of cusps — outer and 

 inner — in fairly adult specimens ; and even when the tooth 

 is worn, so that only the separated transverse laminEe appear, 

 this second lobe is pinched together in the middle line, and 

 the mesial bridge, showing the full laminated pattern of the 

 tooth, does not appear until even later than in G. afer. 



Type (c^), British Museum, no. 97. 1. 4. 11. Collector's 

 no. 81. 5th Oct., 1895. Essex Vale, Matabeleland. 



Head and body 134 millim. ; tail 160; hind foot 34; 

 ear 4.5. 



