70 



BULLETIN 15 3, UNITED STATES NATIONAL MUSEUM 



The only character that I find by which the soutliern Shoan birds 

 differ from typical reichenowi is in the color of the rump, which is 

 brighter yellow, less greenish in roUeti^ more greenish, more like the 

 back in reichenowi^ but even this is variable. For the present, I 

 recognize the two races on the basis of this character, but its con- 

 stancy remains to be established. 



The eastern extension of the range of permistus as shown in the 

 map is based on the present two examples from the Hawash River. 

 These are much nearer to permistus than to monacha. Otherwise 

 the subspecies appears to be known (east of the Abaya Lakes) only 

 from Erlanger's Djamdjam, Arussi- and Ennia-Gallaland records, 

 which are somewhat uncertain to me, as I have not seen the specimens 

 in question. 



In the region traversed by the Frick expedition four forms of the 

 black-headed oriole occur. They may be identified as follows: The 

 typical race is distinguished by the fact that the outer rectrices have 

 little or no black on them; all the others have considerable black 

 areas (in adults) on these feathers. The forms permistus and 



Table 9. — Measurements of 25 specimens of Oriolus monacha from Ethiopia 



O. M. PERMISTUS 



O. M. ROIXETI 



Oato River near Qardula. 



Do 



Do. 



Do 



Do , 



Bodessa.. 



Gato River near Gardula. 



Do 



Do. 



Do 



Turturo 



Male 



do.. 



do.. 



do.. 



do.. 



do.. 



Female. 



do.. 



do.. 



do.. 



do.. 



