104 Mr. 0. Thomas on new 



JHeliosciurus multicolor omensis, subsp. n. 



General intensity of colour about as in true multicolor, but 

 tlie bufFy suffusion reduced on the upper surface and quite 

 absent from the lower surface and limbs. Belly greyish 

 white, a prominent pure white patch on the chest. Poste- 

 rior flanks, hips, and hind legs markedly greyer than the back. 

 Hands and feet grizzled grey, not buffy, darker than in //. m, 

 hiteris, and not lightening terminally as in that form. Tail- 

 hairs throughout ringed with black and buffy, the tips promi- 

 nently pure white. 



Skull much as in tvne multicolor, that of the type unusually 

 broad. 



Dimensions of the type (measured in skin) : — 



Head and body 225 mm. ; hind foot 44. 



Skull : greatest length 48 ; basilar length 36'5 ; zygo- 

 matic breadth 29"7 ; length of upper cheek-tooth series 10. 



Hah. Region of the Lower Omo. Type from Kum Diu- 

 gani, just east of the north end of Lake Rudolph. 



Ti/pe. Old female. B.M. no. 6. 11. 1. 24. Original 

 number 118. Collected 24th July, 1905, by Ph. Zaphiro, 

 and presented by W. N. McMillan, Esq. 



The suppression of the buffy colouring from the body and 

 limbs, with its retention on the tail-hairs, distinguish this 

 form from its nearest allies ; in the Lado lateris it is suppressed 

 throughout. 



H. m. Irifenst's, Neum., geographically adjacent, is a 

 strongly coloured form, wath buffy-ochraceous feet. U. m. 

 ahassensis, Neum., is darker both above and below, has a 

 darker muzzle, the hips little greyer than the back, the hands 

 and feet dull buffy, and the light tips to the tail-hairs are less 

 conspicuous. 



I owe to the kindness of Profs. Matschie and Neumann 

 the opportunity of examining typical examples of the two 

 squirrels described by the latter. 



Ileliosciurus multicolor coenosus, subsp. n. 



General colour darker grey than in multicolor and without 

 the buffy suffusion. Under surface dull soiled whitish brown, 

 the belly not conspicuously lighter than the sides, and even 

 the chest but little lighter. Hands and feet greyish buffy, 

 the outer side of the forearms conspicuously buffy. Tail dark 

 grizzled grey, without buffy suffusion, the tips of the hairs of 

 the same dull whitish as their light rings. 



Skull as in multicolor. 



