331 



and the abdomen brown. In South Africa there is another allied species, Ibis calva, Bodd. ; 

 and in Madagascar there are two other species — Ibis bernieri, Bp., and Ibis cristata, Gm. 



The present species differs widely in its habits from most of its allies, and, strange to say, 

 instead of frequenting only marshy localities or the more fruitful lowlands, as one would at first 

 imagine from its general appearance, it inhabits the rocky sterile mountain range of the Atlas, 

 and is found, it seems, in the most arid portions of that range, where it nests in crevices of the 

 rocks. In North-east Africa, however, according to Von Heuglin (Orn. N.O.-Afr. ii. p. 1145), it 

 is found in small flocks on elevated moors, meadows, pastures, and near mountain-streams, and 

 appears to be more shy than Ibis carunculata. It feeds on Orthoptera, beetles, snails, and, 

 according to Riippell, on reptiles. This explorer remarks on the silent disposition of this Ibis ; 

 and Von Heuglin, also, says that he has no recollection of ever hearing its cry. 



The specimen figured is one obtained by Mr. C. G. Danford in the Euphrates valley, which 

 he has kindly given to me. 



In the preparation of the above article I have examined the following specimens : — 



E Mus. H. E. Dresser, 

 a. Biledjik, Euphrates valley, February 1879 (C. G. D.). 



E Mus. C. G. Danford. 

 a. Biledjik, February 1879 (C. G. D.). 



