AT..EMOX. 317 



b. Ten primaries, the first minute. 



c . First primary large, considerably 

 exceeding the primary-coverts, 

 c". Bill as long as, or longer than, the 



head, and very slender . Al.emon, p. 317. 



d". Bill much shorter than the head, 

 aud thick. 

 a'". Nostrils not covered by plumelets, 



but clearly visible Mirafra, p. 332. 



b'". Nostrils quite concealed by dense 



plumelets Ammomanes, p. 339. 



d! . First primary very small, not exceeding 

 the primary-coverts. 

 e". Crest, if any, short, and covering the 

 ■whole crown. 

 c'". Hind claw long and straight. 

 a 1 . Wings reaching nearly to tip of 

 tail ; tertiaries falling short of 

 tip of wing by more than 



length of tarsus Melanocorypha, p. 322. 



bK Wings falling short of tip of tail 

 by a considerable distance ; 

 tertiaries falling short of tip of 

 wing by less than length of 



tarsus Alauda, p. 324. 



(1 '". Hind claw very short and curved. Pyrrhulauda, p. 341. 

 f". Crest consisting of a few very 

 elongate feathers, springing from 

 centre of crown Galerita, p. 33<3. 



Genus ALiEMON, Keys. & Bias., 1840. 



The genus Alcemon contains one Indian Lark of large size which 

 is found in the desert tracts of Sind as a permanent resident. 



In Alcemo7i the bill is very long and slender, and gently curved 

 on its terminal half, and the nostrils are fully exposed to view. 



Fig. 89. — Head of A. desertorum. 



The first of the ten primaries of the wing is small, but exceeds the 

 primary-coverts. The toes and claws are very short, and the 

 latter are very stout. The sexes are quite alike. 



