520 Mr. 0. Thomas on 



Heliosciurus rufohrachium emissus, subsp. n. 



A dwarf race of rufohrachium. 



Body quite as in typical Fernando Po specimens of rufo- 

 hrachium, with the same general dark tone and muddy- 

 coloured under surface. Under-fur suffused with warm 

 brown. Rufous coloration of forearms and hind limbs 

 well marked. Tail quite as in rufohrachium. 



Dimensions of the type, measured in the flesh : — - 



Head and body 210 mm. ; tail 225 ; hind foot 48; ear 15. 



Skull: greatest length 49; condylo-incisive length 44'3; 

 zygomatic breadth 29 ; cheek-tooth series 8'S. 



Hah. South-east Nigeria, in the country recently trans- 

 ferred from the Cameroons. Type from Kumbo, about 

 6° 50' N. and 10° 50' E. Another specimen from near Banyo. 



Ti/pe. Old male. B.M. no. 23. 1. 22. 50. Original 

 number 781. Collected 29 September, 1921. Two specimens. 



Eeadily distinguished from any described race of the 

 rufohrachium group by its markedly smaller size. 



Heliosciurus rufohrachium lualahce^ subsp. n. 



A small southern race ol rufohrachium. 



Size small, about as in emissus. Colour dark, finely 

 speckled, therein contrasting with the coarsely speckled 

 emissus. Under surface with the median area, from throat 

 to inguinal region, white, the bases of the hairs on the belly 

 brown as usual. Forearms with the usual ochraceous 

 marking, their inner sides white ; hands grizzled ochraceous. 

 Hind limbs with but little ochraceous, their inner aspect 

 whitish ; feet like hands. Tail with the light rings whitish 

 or bufFy. 



Hind foot of type 48 mm. Skull : greatest length 49'5 ; 

 condylo-incisive length 43. 



Hah. Southern Congo. Type from Lod ja, Upper Lukenye 

 Biver ; other specimens from Inkongo, Sankuru (//. Wilson), 



Type. Adult male. B.M. no. 9. 12. 12. 8. Collected and 

 presented by E. Torday, Esq. Three specimens. 



This is a similarly small race to the E. r. emissus of S.E. 

 Nigeria just described, but whether it is specially closely 

 related to it 1 am not at present prepared to say. 



From auhryi and other described forms of rufohrachium it 

 is readily distinguishable by its small size and the whitish 

 median area of its under surface. 



