On a new Shunh from Peru. 499 



Key to Species. 



Tail not markedly distichous, its hairs dark at 

 their bases. 



Larare ; colour above deep black R. gir/antea. 



Smaller ; colour above lightish, especitilly 



across the centre of the back U. bicolur. 



Tail markedly distichous, with light bases to the 

 hairs. 

 All the hairs on the back with light subter- 

 minal annulations. 

 Feet light. 



Colour of upperside " caf^-au-lait." 



Belly yellowisb orange R. affinis aureiventer. 



Belly white R. qffinis typicus. 



Colour of upperside uniform grizzled \_ensis:. 



amber-brown R. ephippium sirhasseii- 



Feet black. 



Large ; underparts deep orange R. eph, bunguranensis. 



Smaller; underparts yellow R. eph. nanuyigas. 



Hairs along the centre of back without annu- 

 lations, forming dark medio-dorsal tract. 

 Hairs on the sides of body with annulations. 



General colour grey R. eph. sandakanen&is. 



General colour brown R. eph. haramensis. 



Hairs on the sides of the body without annu- 

 lations, especially anteriorly. 

 Colour of flanks deep rufous R. eph. typica. 



LXV. — A neio Skunk from Peru. 

 By Oldfield Thomas. 



Conepatus inca, sp. n. 



Size medium. Fur long, coarse, and close ; underfur 

 abundant. Wliite markings much reduced, consisting only 

 of a narrow ( j to | inch wide) band on eacli side, joined on 

 the occiput and running back only as far as the shoulders, or 

 at most to middle of the back, where they come to an end. 

 Tail black, an intermixture of white hairs at its tip. 



Skull proportions as shown by the measurements below. 

 Zygomata less widely expanded than in C mapurito. Last 

 upper molar decidedly larger than in G. zorilla. 



Dimensions of the type (an adult female, measured by 

 collector in the flesh) : — 



Head and body 350 millim. ; tail 210 ; hind foot (s. u.) ^b ; 

 ear 28. 



Skull: greatest length in middle line75"5; basal length ^QA^; 

 greatest breadth 44 ; intertemporal breadth 20 ; greatest 

 posterior breadth 38; palate length from gnathion 32'4; 



32* 



