( 141 ) 



ou the other side, are thoroughly explored, we sh.ill uo donbt find iatermediate 

 forms between all these forms. A series of Persian examples would be desirable to 

 compare them, as they may slightly differ again. 



Accepting my views as correct, we shall liave to complete and to alter the key 

 of the genus Ammomanes, as limited by Sharpe iu the Cat. 13. XIII., as follows : — 



Ammomanes Cab., 1851. 



( Tail rufous or isabelline, witli broad black band at the tip : 2. 



J Tail brown or deep blackish brown, except the central pair of rectrices and the 



I outer webs or edges, which are pale or whitish, as is often the base : 4. 



Primaries deep brown, with chestnut-rufous inner lining : 1. ^1. phocnicurf 

 (Frankl.). (India from (!utch to the Ganges and to Ooimbatore.) 



Primaries greyish, slightly tipped with white, margined with sand-colour ou 

 the outer webs, the inner lining greyish : 2. A. graiji (Wahlb.).* (S. W. 

 Africa.) 



Primaries isabelline, with blackish tips : o. 



Much more rufous : 3. A. cini'fura cinctura Gould.* (Cape Verde Islands.) 

 Paler and more sandy isabelline : 4. A. cinctura regulus (Bp.). (Algeria and 



Tunis.) 

 Like ^1. c. regulu.i, but tail and wing darker, above slightly more sandy 



brownish and rufous, perhaps the sjiots on the chest less distinct : 



5. A. cinctura arenicolor (Sundev.). (Synonyms : A. pallida Cab., 1851 ; 

 elegans Brehm, 18.55.) (S. Egypt, Nubia, Arabia, and ? Persia.) 



^ j Under wing-coverts and inner lining of wing isabelline : 5. 



I Under wing-coverts and inner lining of wing ashy or leaden grey : 6. 



Above sandy vinous, most of the outer webs of primaries rufous isabelline : 



6. A. desert i algeriensis (Sharpe). 

 Aliove of a more ashy sand-colour; only the ujjper tail-coverts vinous; outer 



webs of primaries as in .1. (/. algeriensis : 7. A. deserti deserti Licht. 

 (Synonyms : A. isahellina, /rate rex I us.) (Egypt, Nubia, Abyssinia, 

 5. { Palestine ; those from the last-named two localities perhaps subspecifically 



separable. ) 

 Above almost mouse-brown ; outer webs of primaries with very little rufous 

 isabelline; bill shorter and stouter: 8. A. deserti phoenicuroides (Blyth). 

 (Synonj'm : ^1. lusitana parvirostris Hartert.) (Punjab, Sindh to the 

 Persian Gulf.) 



(■). 



r Larger, chestnut above : 0. A. ferruginea (Sm.). (Plains south of the Orange 

 I River.) 



j Smaller, light rufous above 

 I Damaraluiid.) 



1(1. A. er>/throcIilanii/s (^incW.). (Transvaal to 



The forms niarkeJ witli an asterisk are special desiderata of the Tring 

 JIusenm. 



