Dr. P. L. Sclater on the Birds of the Zambesi Region. 305 



7. Helotarsus ecaudatus (Daud.). 



One young example, without label attached. 



8. MiLvus ^GYPTius (Gm.). 



Two examples. "Iris brown; legs and toes chrome; cere 

 dark cream-colour." Quilimane and Chibisa. 



9. Elanus melanopterus (Daud.). 



Three examples. " Iris deep vermilion ; legs, toes, and cere 

 yellow ochre." 



10. Falco dickinsonii, Sclater, P.Z. S. 1864, May 24th. 

 J. Cineraceo-niger ; capite undique pallide cinereo, hujus plu- 



mis medialiter nigro striolatis : uropygio albicante, cinereo 

 tincto : cauda albicanti-cinerea, nigro frequenter transvittata, 

 fascia subterminali late nigra, apicibus ipsis cinereo-albi- 

 cantibus : ventre nigricante brunneo tincto, tibiis et crisso 

 dilutioribus, cinerascentibus : alarum pogoniis internis albis, 

 nigro frequenter transvittatis : rostro nigro, cera et pedibus 

 flavis : remigibus 2^" et 3''" sequalibus et longissimis : cauda 

 rotundata. Long, tota 13*5, alse 8*3, caudse 5*2, tarsi 1*4 

 poll, et dec. Angl. 

 2 . Mari similis sed major, abdomine brunnescentiore. Long, tota 

 14*5, alee 9'1, caudse 6*0, tarsi 1*5. 



Hab. In ripis fl. Shire in Africa orientali. 



Dr. Dickinson's series contains three examples of this very in- 

 teresting bird, all obtained at Chibisa, on the Shire. The two first 

 are thus noted : — " Pair of light-grey-headed Hawks, male and 

 female : iris dark brown ; cere, legs, and toes yellow ochre." 

 The third is referred to as the same as the preceding, and is a 

 female. 



This new species, which I have proposed to call after the name 

 of its lamented discoverer, is a close ally, as regards structure, of 

 Falco ardesiacus, Vieillot, of Western Africa. It is, however, 

 readily distinguishable by its brighter head, white rump, and 

 altogether more strongly marked plumage, and is a very easily 

 recognizable species. Mr. George Gray, who has received for 

 the British Museum a specimen of the same bird collected by 

 Dr. Kirk during the Zambesi expedition, was inclined to think 

 it might be the Falco zoniventris, Peters, Monatsb. Berl. Acad. 

 1854, p. 7; but I do not think this is likely, as neither Dr. 

 Peters's short characters nor the more detailed description given 



