MAMMALS OF ANGLO-EGYPTIAN SUDAN — SETZER 539 



Cricetoniys gambianus grahami Hinton 



Cricetomys gambianus grahami Hinton, Ann. Mag. Nat. Hist., ser. 9, vol. 4, p. 283, 

 October, 1919. (Nuba Mountains.) 



Specimen Examined: One, the type, in BM. 



Measurements: The measurements of the type, an adult male, 

 are as follows: Length of head and body 300; length of tail 357; 

 length of hind foot 70 (dry, 65); length of ear 35; condylobasal length 

 of skull 62.4; greatest width across zj^gomatic arches 31.7; least inter- 

 orbital width 9.3; length of nasals 25.2; length of anterior palatine 

 foramina 5.4; crown length of upper toothrow 10.4. 



Remarks: The two specimens, in subaduit pelage, from Equatoria 

 Province and referred only to the species gambianus, rather closely 

 approach grahami in color but owing to the immature condition of the 

 skulls little can be said about relationships. 



The types of the various subspecies of C. gambianus examined in 

 the British Museum are all very similar to one another, but minute 

 differences in cranial details and pelage color do exist. Whether 

 these are of subspecific worth is not at present determinable. It 

 would be highly desirable to have series of this animal from the 

 several type localities to determine the degree of variation in each 

 population. 



Cricetomys gambianus subsp. 



Specimens Examined: Two, from: 6 miles southwest of Torit, 1; 

 Nimule, 1. 



Remarks: No subspecies allocation can be made on the two speci- 

 mens examined since both of them are immatures. It is generally 

 accepted that all members of this genus in the Sudan are conspecific 

 and should be referred to gambianus. 



The amount of variation existing in this genus is extreme. How 

 much of it is due to age, sex or geography is a moot question. The 

 genus is in need of a thorough revision based on more than one or 

 two specimens from each locality. 



Subfamily Dendromurinae 



Dendromns niesomelas subsp. 



Specimens Examined: Two, both in MCZ, from: Gilo, 40 miles 

 south-southeast of Torit. 



Remarks: These two specimens are somewhat darker than D. m. 

 percivali from Mount Gargues, British East Africa. The external 

 measurements agree rather well with percivali, but the skulls of the 

 Gilo specimens, even though adult, are markedly smaller. 



