NO. 7 MAMMALS FROM EQUATORIAL AFRICA HELLER 3 



B' Size larger ; undcrparts ochraccous with dark hair bases 



T. mesouielas elgonae 



B""" Size smaller; underparts white or light buff; the hair uniform to 



the roots T. mesomelas mcmillani 



THOS ADUSTUS BWEHA, new subspecies 



Elgon Side-striped Jackal 



Type from Kisunui, British East Africa ; adult male, number 

 182342, U. S. Nat. Mus. ; collected by Edmund Heller, January 20, 

 1912: original number 2663. 



Characters. — The Elgon side-striped jackal, Thos adustus Inveha, 

 resembles most closely the Abyssinian race kaffensis described by 

 Neumann from the headwaters of the Sobat River in southwestern 

 Abyssinia. It may be distinguished from that race by the much 

 darker color of the legs and the reddish character of the dorsal hair 

 basally. From notatus it dififers by the darker underparts which are 

 washed with ochraceous-rufous, and are dark haired basally through- 

 out. The legs are a deep russet heavily black lined on their upper 

 parts, the hind quarters being especially deep and rich in coloring. 

 The back is heavily black-lined and merg-es into the black of the sides 

 so that the side-striped effect is quite obscured or absent entirely. 

 The tail is not conspicuously white-tipped as in notatus, this feature 

 being reduced to a few scattered white hairs hidden among the black 

 hairs of the tip. The tail is shorter and the foot averages smaller 

 than that of notatus. The flesh measurements of the type were : 

 head and body, 720 mm. ; tail, 310 ; hindfoot, 148 ; ear from notch, 90. 

 Skull: condylo-incisive length, 152; greatest length, 160; zygomatic 

 width, 82; interorbital width, 27; postorbital width, 30; nasals 

 13.4x58; length of upper cheek to front of canine, 68; width of 

 mesopterygoid fossa, 14.5; length of palate, 80; length of incisive 

 foramina, 10. The skull shows considerable age, the sagittal crest 

 being a high knife-like ridge and the basisphenoidal sutures oblit- 

 erated. This specimen is unfortunately somewhat abnormal having 

 two pairs of upper carnassial teeth, the smaller pair being inside the 

 larger. 



The collection contains three additional adult males from the type 

 locality and two from the Uasin Gishu Plateau. The latter are more 

 heavily lined with black than those from the Kavirondo country, but 

 otherwise are quite indistinguishable from them. Two skins and 

 four skulls are in the National Museum from Mashonaland, which 

 represent the Zambesi race holiihi. These are distinguishable from 



