MAMMALS OF ANGLO-EGYPTIAN SUDAN — SETZER 465 



Crocidura sericea sericea (Siindevall) 



Figure 2,d 



Sorex sericeus Sundevall, Kongl. Svenska Vet.-Akad. Handl., Stockholm, pp. 



173, 177, 1843. (Near Bahr-el-Abiad.) 

 Crocidura macrodon Dobson, Ann. Mag. Nat. Hist., ser. 6, vol. 5, p. 226, March 



1890. (? Sudan.) 



Specimens Examined: Ten, all in BM, from: Fashoda (=Kodok), 

 2; Jebel Ahmed Aga, 1 ; Lake No, White Nile, 1 ; 8 miles east of Lake 

 No, White Nile, 2; Chak Chak, 4. 



Measurements: An adult male and an adult female, from Chak 

 Chak, respectively measure as follows: Length of head and body 96, 

 98; length of tail 55, 62; length of hhid foot 15, 15; length of ear 10, 9; 

 condyloincisive length of skull 24.0, 24.4 ; greatest breadth of skull 10.6, 

 10.3; greatest maxillary breadth 7.7, 7.5; length of palate 9.8, 10.5; 

 length of upper toothrow 10.3, 10.6; least interorbital width 5.1, 4.5. 



Remarks: C. s. sericea differs from C. s. lutrella in being larger in 

 all respects, browner on upperparts, and less gray and more buff on 

 the underparts. In lutrella, sericea, marrensis, and aridula the flank 

 gland is small and white. 



Crocidura turba nilotica Heller 



Figure 3,a 



Crocidura nilotica Heller, Smithsonian Misc. Coll., vol. 56, No. 15, p. 3, Dec. 23, 

 1910. (Rhino Camp, Lado Enclave.) 



Specimens Examined: Nine, from: Mongalla, 1 (BM); Malek, 

 1 (BM); Rhino Camp, 7. 



Measurements: The skulls of the two specimens from the Sudan 

 are so badly broken that only the toothrows remain identifiable, 

 consequentl}^, only the external measurements of an adult male from 

 Alongalla and an adult female from Malek are available. Their 

 measurements, respectively^ are as follows: Length of head and body 

 89, 97; length of tail 52, 55; length of hind foot 15, 16; length of ear 

 11, 10. 



Remarks: The two localities from which these specimens come lie 

 on the east bank of the Nile, while Rhino Camp is located on the west 

 bank. It seems odd that so small an animal as this could cross back 

 and forth across the Nile in enough instances to retain the purity of 

 genetic stock. The type specimen of nilotica was obtained by J. A. 

 Loring while the Roosevelt party was camped at Rhino Camp. 

 It is always possible that Loring and his companion, E. A. Mearns, 

 may have crossed the river for a few days and trapped for small 



