344 Mr. Swainson on several new groups n Ornithology/, 



Bill short, somewhat conic. Wings long ; the first, second and 



third quills nearly equal and longest. Tail divaricated. 

 Type. Alauda arvensis. Linn. 



** Rostrum subforte^ compressum ; culmine arcuato : naribus sub' 

 nudis^ membranaceis ; aperturd ovali: rictu imberbi. 



MACRONYX. 



Rostrum mediocre, rectum; culmine leviter arcuato; naribus 



nudiSj magnis, apertura oblonga. 

 Ala breviusculcB, remigibus \md^ ^dd^ ^tid^ et Ata aqualibus, Ion- 



giSsimis. 

 Cauda sub-rotundata. 

 Pedes elongati; tarsis squamis lateralibus integris, halluce ungue 



longissimo, curvato. 



Bill moderate, straight, the culmen slightly arched. Nostrils 

 naked, large, the aperture oblong. Wings rather short, the 

 four first quills equal and longest. Tail slightly rounded. 

 Feet long ; the lateral scales of the tarsi entire ; the nail of the 

 hind toe very long and curved. 



Type. L^Jlouette Sentinelle. Levaill., Ois. pi. 195. 



CERTHILAUDA. 



Rostrum mediocre, gracile, arcuatum; naribus subroiundatis. 



Ala ^ 



Cauda sub-brevis, osqualis. 



Pedes mediocres ; halluce ungue brevi, recto. 



Bill moderate, slender, curved. Nostrils roundish. Wings . ,. .? 

 Tail rather short, even. Feet moderate ; nail of the hind toe 

 short, straight. ' 



Type. L^Alouette Sirli, Levaill., Ois. pi. 192. 



My specimen of this bird is deficient in some of its quill 

 feathers. 



