134 MESSRS. O. THOMAS AKD IT. SCHWANN ON MAMMALS [Feb. 21, 



Skull—basal length 61 mm. ; greatest length 72 ; zygomatic 

 breadth 50 ; brain-case breadth 33. 



Hah. Near Grahamstown, Cape Colony. 



Type. S. B.M. No. 97.11.5.10. Presented by the Albany 

 Museum. 



S. S. HAMILTONI, Subsp. nOV. 



This subspecies is based on specimens collected by Capt. G. E- 

 H. Barrett- Hamilton at Yredefort Road, Orange River Colony, and 

 the one obtained hy Mr. C. H. B. Grant at Wakkerstroom. 



It is distinguished by its generally lighter colour above and below 

 and the stronger fulvous suffusion present on the back. One of 

 its best chai-acters is a strongly mai'ked white patch extending 

 from the eye to the neck and entirely surrounding the ear. The 

 throat is also strongly suffused with white, while it is grey in the 

 other subspecies. These characteristics, though not very marked 

 in single specimens, are very apparent Avhen a series of skins is 

 compared. 



The skull differs in no way fi-om that of the typical subspecies. 



Hah. Wakkerstroom, S.E. Transvaal; alt. 1850m. 



T7j2Je. 6 ■ B. M. No. 4.9.1.31. Collected 8 April, 1904. 



S. S. NAMAQUENSIS, Subsp. nOV. 



Characterised by the silvery tone of the forehead, lips, cheeks, 

 and shoulders, these parts being grey in the other subspecies. 

 Throat grey as usual. Suffusion on the tail more yellow than 

 fulvous, the black tip rather less strongly pronounced than in the 

 other races. 



The silvery tone of this animal falls in well with the conclusions 

 published in our paper * on Mr. Grant's Namaqualand collection, 

 where the paleness of the mammals generally was noticed. 



Hah. Klipfontein, Namaqualand ; alt. 1034 m. 



Tijjje. 5 . B.M. No. 4.2.3.4.2. Collected 13 May, 1903. Four 

 specimens examined. 



The following is a rough key to the four subspecies of Suricata 

 here recognised : — 



A. Greatest leugtli of skull 68 mm. at most ; hind foot less 



than 65 mm. ; tail less busliy. 

 «. Forehead and nape uniformly coloured, white cheek- 

 patch not passing over ears. 

 a^. Forehead, cheeks, and shoulders with a distinctly 



silvery tone &'. s. namaquensis. 



h^. Forehead and shoulders "drab-grey," cheeks 



dirty white S. snricatta. 



I. White cheek-patch extending above ears 8. s. hamiltoni. 



B. Skull 69 mm. or more ; hind foot more than 67 mm. ; tail 



very bushy S. s. lophtirus. 



* r. Z. S. 1904, i. p. 172. 



