Descriptive List of the Rodents of South Africa. 197 



Euryotis unisulcatus, A. SMITH, S. Afr. Quart. Journ., ii., p. 149 

 (1834); ID., Illustr. Zool. S. Afr. Mam., pi. xxiii. (1849). 



Euryotis pallida, WAGNER, Archiv. Naturg., i., p. 134 (1841). 



Otomys ruftfrons, WAGNEK, Schreber Saugeth. Suppl., iii., p. 507 

 (1843). 



Description. General colour dark grey-brown, paler on the sides 

 and becoming a dirty white below, rather lighter in colour than 

 0. bisulcatus ; the fur is soft, dark slate at the base, and pale yellow 

 and black at the tips ; ears very large and rounded, measuring about 

 9 in., thickly covered with hair ; limbs and toe-pads much as in 

 0. bisulcatus ; tail less than half the length of the head and body 

 covered with short bristles, dark above, light below. 



Skull with the superior and anterior edges of the perpendicular 

 plate of the antorbital foramina forming almost a right angle. 



Upper incisors narrower than in the last species (about '15 in. 

 broad at their tips), paler, and with the groove much nearer the outer 

 edge ; lower incisors ungrooved ; formula of the molar laminae '^E^ 



Dimensions (from a stuffed specimen). Head and body 8'25 ; tail 

 3 -50 ; hind foot 1'08 ; from ear-opening to tip of snout 1*55 ; skull 

 length 1-40, breadth -70 ; upper cheek teeth -34. 



Distribution. To M. Delalande's collecting and M. Cuvier's 

 description we are also indebted for our first knowledge of this 

 species, and except for Sir A. Smith the animal seems to have 

 attracted little attention since ; the South African Museum possesses 

 examples from Garies in Namaqualand, Clanwilliam and Malmes- 

 bury, and from Touws River in the Worcester division, and Sir 

 A. Smith records his specimens from George. 



OTOMYS BBANTSII, BRANTS' OTOMYS. 



Euryotis brantsii, A. SMITH, S. Afr. Quart. Journ., ii., p. 150 

 (1834) ; ID., Illustr. Zool. S. Afr. Mam., pi. xxiv. (1849). 



Otomys brantsii, DE WINTON, Ann. Mag. N. H. (7), i., p. 6 (1898). 



Description. General colour yellowish brown, lighter on the sides 

 and below ; as in the other species the fur is slaty at the base, with 

 yellowish brown intermingled with less abundant black tips ; ears 

 markedly smaller than in the other two species, about half an inch 

 in length and breadth, fairly thickly clothed with hairs ; limbs some- 

 what stouter and broader than those of 0. unisulcatus ; tail thickly 

 clothed with somewhat stout yellow bristles with a dark dorsal band 

 more marked towards the tip, which is almost black ; two pairs of 

 mammae inguinal in position ; tarsal pads six, all circular. 



