A/iU-an sniall Mammals. lol 



frt'f, and 1)V its fjoon^rnjiliical i.SDlatioii, x\\c nearest forms of 

 //. rufobrachiatus bt-ing //. r. ni/nnatn of Kaviroii'lo, Mount 

 Elgoii, &c., aiul //. r. semli/ct'i oi the Semliki and Entebbe. 



Jleli'osciurua undulatus daucinuSj subsp. n. 



More rufoiLs throughout than true unduhitun. Whole of 

 head of tho same vivi<l lUsty coh)ur an tlio bidly, thou^li 

 biTukeu by . a few bhick-ti()|»cd subterniinally white-rinj^ed 

 hairs. Back strongly suftused with red, the hairs blackish 

 brown for their basal 4 mm. only, then broadly orange-ruluud 

 nearly or quite to the subterminal butfy-whitish band, the 

 e.xtirme tips black. Arms and hands coniphtely rusty from 

 elbow and hind limbs from mi<ldle of til)i:e, the inner side of 

 the latter of rather a deej)er red than elsewhere. Tail-hairs, 

 instead of being ringed throughout, with their basal three- 

 fourths uniform brilliant orange-rufous, succeeded by a black 

 subterminal and a cream-buff terminal band. 



8kuil as in true undulahi<t. 



Dimensions of the type : — 



liii.d foot 5-A mm. 



Skull : greatest length 54 ; condylo-basal length 50 ; 

 length of upper tooth-row lO'G. 



I lab. Mon)basa, Brit. E. Africa. 



Type. Adult male. B.M. no. 80. 11. 30. 3. Collected by 

 Sir John Kirk. 



This squirrel is readily recognized by its red head and the 

 nearly wholly red hairs of its tail. 



The Heliosciurus gambianus Group. 



An earlier name than gambianus is commonly used in 

 connexion with this group of squirrels, namely Desmarest's 

 Sciurus annuUilus. But I am not jtrepared to accept it as 

 determinable. The desciiption* is not in the least dia- 

 gnostic, no locality is recorded, and the typo is no longer in 

 the Paris Museum, S. annulatus may therefore have been 

 any ring-tailed squirrel from any part of the world, and its 

 arbitrary assignation to the present animal is only productive 

 of confusion. It should therefore be set aside as indeter- 

 minable. 



Of this group the following species at least appear to be 

 recognizable : — 



• Dtsm. .Marani. ii. p. 338 (1822). 



