MAMMALS OF ANGLO-EGYPTIAN SUDAN — SETZER 463 



Diagnosis: Hairs of upper parts near Bister, shading over the sides 

 into the somewhat hghter color of the belly; belly silvery gray with a 

 heavy wash of dark buff; hands, feet, and tail all darker brown than the 

 back. Tail clothed with bristle hairs for almost its entire length. 

 Skull large, teeth heavy, upper toothrow long, braincase wide and 

 relatively flat, posterior choanae relatively wide open, but little 

 constricted, postmandibular processes of skull relatively large, palate 

 wide and long, least interorbital width relatively small. 



Measurements of the Type Specimen: Total length 190; length of 

 tail 66; length of hind foot 19; length of ear 8; condyloincisive length of 

 skull 29.5; greatest breadth of braincase 11.6; greatest maxillary 

 breadth 9.3; length of palate 12.6; length of upper toothrow 13.4; 

 least interorbital width 5.0. 



Comparisons: C. n. toritensis differs from C. n. sururae in darker 

 dorsal coloration and larger general size. The skull differs in that it is 

 larger in all measurements taken with the exception of the least 

 interorbital width which is less; the postmandibular processes are 

 larger in the former than they are in sururae and the palate is wider 

 and longer. 



From C. n. nyansae, C. n. toritensis differs in somewhat smaller 

 size and lighter color. The skull is smaller in all measurements 

 taken, but the postmandibular processes are of approximately the 

 same size. 



Remarks: The type series of the new kind is quite remarkable for 

 its diversity of color. The series from Torit was taken over most of 

 a l-3"ear period and this color difference is apparently due to fading 

 and molt. The type appears to be in the new fresh pelage. A 

 peculiar kind of fading occurs in which the reddish brown pigment 

 seems to undergo reduction to a yellowish brown which is quite 

 splotched with newer, more gray pelage coming in. This molt takes 

 place in February and March and there is apparently another molt 

 in October and November. 



Crocidiira pasha Dollman 



Crocidura pasha Dollman, Ann. Mag. Nat. Hist., ser. 8, vol. 17, p. 195, February 

 1916. (Atbara River, Anglo-Egyptian Sudan.) 



Specimens Examined: Five, from: Atbara River, 1 (BM); Kliar- 

 toum, 1 (skull, skin in alcohol, BM); Torit, 3. 



Measurements: Respectively, the external measurements of an 

 adult male and female from Torit are as follows: Total length 87, 91; 

 length of tail 35, 37; length of hind foot 9, 9; length of ear 8, ?. Since 

 the skulls are so badly broken no cranial measurements can be taken. 



386559—56 2 



