AMMOMANES. 93 



KEY TO THE SPECIES. 



a. No white ends to any of the quills and tail- 

 feathers, excepting the outer pair of the 

 latter, 

 a^. Dark portion of tail not confined to a trian- 

 gular pattern, restricted to the end half of 

 the tail. 

 a^. Crown, back and centre tail-feathers 

 throughout their length, rich cinnamon 

 or chestnut. Wing 4-1 inches. . . . ferruginea. '^ 

 h^. Much paler above ; lower throat and 

 chest less spotted. 

 a^. Above, including the entire centre tail- 

 feathers, bright pale cinnamon ; outer 

 web and tip of outer tail-feather white ; 

 under parts white, with the crop 

 strongly spotted ; under wing-coverts 



white and ashy brown erythrochlamys. ? ^~ 



b^. Above paler and more ashy or isabel- 



line ; tail with the centre feathers of 



two colours and with no pure white 



on the outer rectrices. 



a*. Pale edges of primaries narrower, 



never crossing the entire outer web 



of any of these feathers ; crop more 



spotted phcenicuroides. ?C 



i*. Pale edges of primaries broader, 



crossing the centre of the outer 



webs of some of these feathers ; 



crop less spotted. 



a^. Upper parts more ashy ; less 



rufous on the tail, where there is 



no sign of a dark triangular 



pattern. 



a'^. Paler ; ashy shade on crown 



and mantle very slight . . . deserti. o ^ 

 b'^. Darker; crown and mantle 

 strongly washed with dusky 

 grey ; rufous on quills and tail 

 darker samharensis. f j 



