Mammals from Northern Angola. 417 



belly ; upper surface of hands and feet pure white. Tail 

 about the length of the head and body, practically naked, 

 the few fine hairs about one scale in length ; scales coarse, 

 about nine rings to the centimetre ; colour uniformly brown. 

 Mammae — 2 = 4, all close together near the vulva. 



Skull long, well-ridged, the ridges not sharply divergent ; 

 palatal foramina long, rather narrow, reaching back to 

 the level of the first lamina of m 1 . Bulla? of medium size, 

 smaller than in M. Hindei and Thomasi, much larger than in 

 M. sebastianus. 



Teeth rather light, the molars much narrower than the 

 palate between them. 



Dimensions of the type (measured in the flesh) : — 



Head and body 191 mm. ; tail 189 ; hind foot 35 ; ear 28. 



Skull : greatest length 41 ; basilar length 32'2 ; zygo- 

 matic breadth 20; nasals 15*5; interorbital breadth 6; 

 breadth between ridges on parietalsl3; diastema 11 ; pala- 

 tine foramina 8*7; length of bulla 7 ; length of upper molar 

 series 6 2. 



Hal. Pungo Andongo. Alt. 1200 m. 



Type. Male. B.M. no. 4. 4. 9.62. Original number 128. 

 Collected 13th September, 1903. 



This fine species may be readily recognized by its size, 

 nearly naked large-scaled tail, white belly and feet, and 

 unusual mammary formula. 



An example of it seems to have been the " Femina : colori- 

 bus pallidioiibus. Mamma? quatuor inguinales" of Bocage's 

 ilus Anchietcc, but the male and all other parts of the descrip- 

 tion refer to an CEnomys (see above). 



I have great pleasure in dedicating this species to my friend 

 Prof. Barboza du Bocage, of Lisbon, to whom I am much 

 indebted for help, and in whose many papers almost the 

 whole of our knowledge of Angolan mammals is enshrined. 



35. Mus avunculus, sp. n. 



£ . 49. Pungo Andongo. 



Like M. anyolensis, but larger, with white belly and more 

 hairy tail. 



General colour above pale fawn-grey, about as in M. anyol- 

 ensis, but the rump distinctly redder (dull "ochraceous buft'"). 

 Under surface, from chin to anus, pure white, the hairs white 

 to their roots. Head clearer grey, without buffy suffusion. 

 Ears of medium size, grey. Upper surface of hands and feet 

 pure white. Tail distinctly ringed (ten rings to the centi- 

 metre), almost naked basally, the rings there obvious, but ter- 

 minally the hairs increase in length, hiding the scales on the 



