MAMMALS OF AXGLO-EGTPTIAX SUDAN — SETZER 565 



Frocavia habessinica burtonii (Gray) 



Figure 9,c 



Hyrax burtonii Graj^ Aun. Mag. Xat. Hist., ser. 4, No. 1, p. 43, January 1868. 



("Egj'pt.") 

 Hyrax dongolanus Blanford, Proc. Zool. Soc. London (1869), p. 642, April 1870. 



(Dongola.) 



Specimen Examined: Only the tj^De, in BM. 



Measurements: Cranial measurements of the type, an unsexed 

 young adult, are as follows: Crown length of upper too throw 36.2; 

 least interorbital width 21.7; least postorbital ^^dth 23.5; greatest 

 width across zygomatic arches 54.0; length of nasals 22.8. 



Remarks: In both burtonii and hutleri the dorsal spot is quite small 

 and 3'ello^vish. The former is markedly' lighter in general over-all 

 color than is hutleri. That this is not due to fading is apparent from 

 the original description in which Gray comments on the paleness of the 

 color of the specimens obtained by Burton. 



Procavia habessinica butleri Wroughton 



Figure 9,c 



Procavia butleri Wroughton, Ann. Mag. Xat. Hist., ser. 8, vol. 8, p. 461, October 

 1911. (Jebel Fazogli, Blue Nile at Abyssinian border.) 



Specimens Examined: Five, all in BM, from: Gebel Ain, 3; Jebel 

 Fazogli, 1 ; Wadi Ferony, 1 . 



Measurements: The cranial measurements of the type specimen, 

 an adult male from Jebel Fazogli, are as follows: Condj'loincisive 

 length 92.3; crown length of upper toothrow 38.5; least interorbital 

 width 22.1; least postorbital width 25.6; greatest width across zygo- 

 matic arches 54.5; length of nasals 25.0. 



Remarks: There is a decided black cap on the head in butleri. 

 This black color continues caudad to just behind the shoulders as a 

 rather broad stripe. This striped effect has not been seen on any of 

 the other specimens of Procavia from the Sudan. 



Ellerman and Morrison-Scott (1951, p. 334) have arranged all of 

 the Procavia of Africa as subspecies of the single species capensis. 

 Hahn (1934), in a revision of the family, recognized separate species. 

 Certainly, in the Sudan, two species can be distinguished. They are 

 habessinica and ruficeps. The former may be recognized by its mark- 

 edly larger cheekteeth, the larger skull, the lack of inflation over the 

 frontals, and the laterally curved upper incisors. Since, in specimens 

 examined from the Sudan, these features remained constant, I prefer 

 to recognize the two species as discreet from capensis. 



