6 Mr. W. E. de Winton on 



This species inhabits the southern and eastern districts of 

 the colony, frequenting dry situations. In colour it is some- 

 what paler than 0. irroratus, but unless the teeth are ex- 

 amined the two species may be easily confounded. While 

 closely resembling 0. Brantsi in the pattern of its dentition, 

 it is readily distinguished by its colour. A sure distinction, 

 however, Is found in the skull, as described under the next 

 species. 



Otomys Brantsi ', Smith. 



Euryotis Brantsii, Smith, S. Afr. Quart. Journ. ii. 1834, p. 150 ; 111. 

 Zool. S. Afr., Mamm. pi. xxiv. (1840). 



This species is particularly abundant in Namaqualand, 

 inhabiting dry situations. The upper incisors only are 

 grooved ; the last upper molar has only four enamel folds. 

 The skull may be readily distinguished from that of 0. uni- 

 sulcatus in having much larger auditory bullse ; the basi- 

 occipital and basisphenoid bones are exceedingly narrow and 

 rounded, while in both the other species known to inhabit 

 the Cape Colony these bones are flattened out considerably. 



Saccostomus campestris, Peters. 



Three specimens of this species have been received, through 

 the Grahamstown ]\luseum, from Mrs. George White of 

 Brak Kloof. The occurrence of this pouched mouse in the 

 neighbourhood of Grahamstown has come as a great surprise, 

 for hitherto the most southerly points from which any member 

 of the genus had been recorded were Mashonaland, where 

 the large dark grey form occurs, and Damaraland, where a 

 pale sandy -coloured form is found*. 



From what Mr. Schonland tells me, this animal is generally 

 confused with Ilystromys albicaudatus by South-African 



* In writing on tome rodents from Angola (Ann. & Mag. Nat. Hist . 

 1897, xx. p. 322) I referred some specimens of Saccostomus to 8. mas/iotice ; 

 but while agreeing with that species in the size and proportion of the 

 skull, so far as can be judged from the material at hand (consisting of 

 three specimens of S, mashonte and five Damaraland skulls of different 

 ages), the specimens from Damaraland and Angola differ so much in 

 colour, being of a light somewhat sandy tint, even paler than *S. cam- 

 pestris, that I think it desirable to specify them under the name of 

 S. Anderssoni; and I take as the type of this new species no. 69. 8. 11. 4 

 in the British Museum, collected by Mr. C. J. Andersson in Damaraland, 

 this being, in fact, one of the specimens mentioned by Mr. Oldfield Thomas 

 (P. Z. S. 1882, p. 266, pi. xiv.), the figure being drawn to illustrate a new 

 species, but afterwards changed to S. campestris, as it was considered 

 wiser not to distinguish the two foims with the material then in the 

 Museum. 



