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PROCEEDINGS OF THE NATIONAL MUSEUIH 



Table 1. — Consistent cranial characters in specimens and species examined from 



the Sudan 



•Cusp terminology of the molars is based on Miller, Catalogue of the Mammals of Western Europe, 

 p. 801, 1912. 



Aethomys kaiseri alghazal (Wroughton) 



Figure 6,d 



Mus alghazal Wroughton, Ann. Mag. Nat. Hist., ser. 7, vol. 20, p. 501, December 

 1907. (Chak Chak, Bahr-el-Ghazel.) 



Specimens Examined: Five, all in BM, from: Tembura, 1; Deim 

 Zuheir, 1 ; Wau, 1 ; Khor, half-way between Chak Chak and Deim 

 Zubeir, 1; Chak Chak, 1. 



Measurements: The measm^ements of an adult male from Chak 

 Chak are as follows: Length of head and body 194; length of tail 195; 

 length of ear 16; greatest length of skull 35.7; condyloincisive length 

 32.9; least interorbital width 5.6; length of nasals 13.6; width of 

 rostrum at level of antorbital foramen 4.6; greatest width across 

 zygomatic arches 17.0; crown length of upper toothrow 6.3; length of 

 anterior palatine foramina 8.0. 



Remarks: This subspecies is decidedly paler in color than are 

 specimens of A. k. helleri from Rhino Camp or from the eastern part 

 of Equatoria Province. This paler color is caused by less gray (or 

 black-tipped hairs) and more light brown being visible in the pelage. 

 The underparts are strongly washed with bujffy. In all specimens the 

 feet are white above. The tails are nearly naked and average about 

 10 scale rows per centimeter. 



