MAMMALS OF ANGLO-EGYPTIAN SUDAN — SETZER 551 



portion is supposed to be plumbeous and in mcmillani the basal por- 

 tion is supposed to be white. However, in the specimens used by 

 Heller, including the types, the hah- is plumbeous to the base in all 

 specimens of both kinds. In addition, there is no method by which 

 the skulls of the two kinds may be told apart. It is true that the 

 auditory bullae in the type of elgonae are more inflated ventrally than 

 in mcmillani but this character breaks down when the type series 

 from the Guas Ngishu Plateau is examined. Therefore, since the 

 name Thos mesomelas elgonae has line preference over Thos mesomelas 

 mcmillani, that name will be the one for the mesomelas jackals from 

 northern and eastern Kenya Colony and mcmillani thus becomes a 

 synonym of 0. m. elogonae. 



Vulpes pallida pallida (Cretzschmar) 



Canis pallidus Cretzschmar, in Ruppell, Atlas zu der Reise im nordlichen Afrika 

 von Ruppell, pt. 1, Saugethiere, p. 33, 1826. (Kordofan.) 



Specimens Examined: Eighteen, all in BM, from: 25 miles west of 

 Omdurman, 1; Shendy, 5; Wad Medani, 1; Suakin, 5; Wad Ferow, 

 1; Kulme, Wadi Aribo, 4; Jebel Marra, 1. 



Measurements: Average and extreme measurements of tlii-ee 

 adult males from Shendy are as follows: Length of head and body 

 382.2 (333-420); length of tail 242.1 (225-270); length of hind foot 

 103.0 (100-108); length of ear 68.2 (65-71); greatest length of skull 

 97.5 (96.8-98.7); condyloincisive length 94.3 (93.3-96.0); length of 

 auditory bullae 17.3 (15.9-18.5); greatest width across zygomatic 

 arches 52.3 (51.0-53.6); least postorbital width 20.8 (20.2-21.9); least 

 interorbital width 18.1 (17.1-19.1); length of nasals 31.3 (29.0-33.3). 



Remarks: The specimens from Kulme and the Jebel Marra are 

 not typically pallida but average larger in all measurements taken 

 on the skull. They are darker in color than animals from farther 

 east. The skulls have & wider braincase, larger upper molars, and 

 the auditory bullae are, in general, larger and more inflated. 



However, the differences set forth are not constant in the few 

 specimens examined, and since there is some overlap of these char- 

 acters with animals from the eastern Sudan I refer them to the nom- 

 inate race. 



Vulpes riippellii riippellii (Schmz) 



Canis riippelii (sic) Schinz, Das Thierreich . . . von Cuvier, vol. 4, p. 508, 1825. 



(Dongola.) 

 Canis famelicus Cretzschmar, in Ruppell, Atlas zu der Reise im nordlichen 



Afrika von Ruppell, pt. 1, Saugethiere, p. 15, 1826. (Nubian desert and 



Kordofan.) 



Specimens Examined: Five, all in BM, from: Selima Oasis, 100 

 miles west of Wadi Haifa, 2; Nagashurt, 1; No. 2 Station, between 

 Wadi Haifa and Khartoum, 1; Khor Arbat, 1. 



