460 



Mr. H. L. Jameson on 



(21) Mus chysojjJnlus de Wint. 

 Makapan's Poort^ Potgieter's Rust, Transvaal. 

 (? . 255. 



(22) Mus chrysophilus tzaneenensis, subsp. n, 



Tzaneen. 



8eries. 



Malvern, Natal, 



c?. 414. 



[Specimens of Darling's rat from the North-eastern Trans- 

 vaal and Natal are darker than examples from the type- 

 locality oi Mus chrysophilus (Mazoe, Mashonaland). 



A large series whicli I brought home from Tzaneen differs 

 so markedly f;om the type series in the British Museum that 

 I propose to apply the above name to the form frequenting 

 the North-eastern Transvaal. The Natal and Zululand 

 forms, unless they also deserve separate subspecific rank, 

 belong to this subspecies rather than to the type species. 



Description. — Size as in the type form. Colour altogether 

 darker and less golden, the back being heavily pencilled 

 with black, so that the predominant shade is a dark chestnut- 

 brown, whereas that of J/ws chrysophilus is tawny brown. 



The ear is a little larger, and the tail perhaps a shade 

 shorter in proportion to the body, than in M. chrysophilus. 



The dimensions of eight full-grown examples in my collec- 

 tion are as follows : — 



* Type. 



