MAMMALS OF ANGLO-EGYPTIAN SUDAN — SETZER 497 



Taterillus emini butleri Wroughton 



Figure 5,c 



Taterillus butleri Wroughton, Ann. Mag. Nat. Hist., ser. 9, voL 6, pp. 293-294, 



September 1910. (Dugdug, Bahr-el-Ghazal.) 

 Gerbillus (Taterillus) kadugliensis Wettstein, Auz. K. Akad. Wiss. Wien, Math.- 



Nat., voL 53, p. 151, 1916. (Kadugli, southern Kordofan.) 



Specimens Examined: Ten, all in BM, from: Dugdug, 3; Katta, 

 northwest of Wau, 2; Wau, 1; Raffili, 4. 



Measurements: The measurements of the type, an adult female 

 from Dugdug, are as follows: Length of head and body 120; length 

 of tail 150; length of hind foot 29; length of ear 18; condyloincisive 

 length of skull 30.1; greatest length of skull 34.6; length of nasals 

 14.1 ; least interorbital width 6.3; length of anterior palatine foramina 

 6.9; crown length of upper toothrow 4.7; length of auditory bullae 

 9.0; depth of skull at level of auditory bullae 13.6; greatest width 

 across zj^gomatic arches 15.9. 



Remarks: For remarks see under the heading of genus Taterillus. 



Taterillus emini clivostis Thomas and Hinton 



Figure 5,c 



Taterillus clivosus Thomas and Hinton, Proc. Zool. Soc. London, p. 258, July 6, 

 1923. (Kurra, Jebel Marra.) 



Specimens Examined: Nineteen, all in BjM, from: Jebel Marra, 1; 

 Kurra, northeastern Jebel Marra, 11; Kulme, Wadi Aribo, 7. 



Measurements: An adult female from Kurra, northeastern Jebel 

 Marra, has the following measurements: Length of head and body 

 120; length of tail 171 ; length of hind foot 32; length of ear 18; condyl- 

 oincisive length of skull 31.3; length of nasals 14.9; least interorbital 

 width 6.3; length of anterior palatine foramina 6.3; crown length of 

 upper toothrow 5.2; length of auditory bullae 9.6; depth of skull at 

 level of auditory bullae 14.0; greatest width across zygomatic arches 

 18.8; greatest breadth of skull 16.8. 



Remarks: The tj^pe, a specimen from Kurra, is aberrant from the 

 rest of the type series in that it is somewhat darker dorsally and has 

 a white tip on the tail. However, the skulls all agree in fundamental 

 details. 



One specimen from Kurra, northeastern Jebel Marra, is an apparent 

 intergrade between clivosus and T. e. perluteus. In color the specimen 

 is intermediate, in the shape of the auditory bullae it is like the 

 latter, and in size it is like the former. In the majority of the cranial 

 characters it is more nearly like clivosus. 



The series from Kulme, Wadi Aribo, is consistently darker than the 

 type, but in cranial features it is identical with the type. 



