526 ALATTDIDJ?. 



b. Smaller; wing 3-8o inches: general colour grey 

 with broad white margins to the wing-coverts 

 and iuterscapulary region ; throat, breast, and 

 Hanks strongly streaked with blackish brown . . lusitanicus, p. 527. 



1. Chersophilus duponti. 



Alaiida duponti, Vieill. Faun. Franc;, p. 173, pi. 76. fig. 2 (1820); 



Keys. u. Bias. Wirb. Ear. p. xxxvi (1840) ; Bree, B. Eur. ii. p. 184 



(1867). 

 Certhilauda duponti, Temm. Man. d'Orn. pt. lii. p. 198 (1835) ; Bp. 



Cat. Met. Ucc. Eior. p. 31 (18431 : Gratj, Gen. B. ii. p. 383 (1844) ; 



Bp. Consp. i. p. 246 (1850) ; Tristr. Ibis, 1859, p. 427 ; Deyl. 8f 



Gerbe, Orn. Eur. i. p. 350 (1867) ; Loc/ie, Expl. Sci. Alger., Ois. ii. 



p. 42 (1867) ; Grai/, Hand-l. B. ii. p. 120, no. 7789 (1870) ; Dresser, 



B. Eur. iv. p. 279, pi. 227 (1873) ; Saunders, Bull. Soc. Zool. 



France, ii. p. 91 (1877) ; Salmd. Elench. Ucc. Ital. p. 159 (1886). 

 Galerita duponti, Jaub. i^- Barth.-Lapomm. Rich. Orn. p. 289 (1859). 

 Alaemon margaritse, Kwnig, J.f. 0. 1888, p. 228, pi. ii. 



Adult. General colour above sandy brown, with dark brown or 

 blackish centres to the feathers of the mantle and back, some of 

 them with whitish edges ; wing-coverts and quills light sandy 

 brown, edged with isabelline ; primaries dusky brown, with ashy 

 isabelline margins ; inner secondaries dark brown, with lighter 

 brown or whitish edges and with a white shaft-lino, very distinct ; 

 lower back, rump, and upper tail-coverts ashy isabelline, with 

 dusky brown centres ; centre tail-feathers sandy brown, with blackish- 

 brown centres and conspicuous white shafts ; remainder of the 

 feathers dark brown, edged with lighter brown, the penultimate 

 one with white ; the outer tail-feather for the most part white, 

 with an oblique mark of brown on the inner web, the shaft brown 

 towards the ends ; crown of head like the back, and similarly 

 mottled, the centre feathers edged with white, forming a streak ; 

 hind neck more hoary, greyish white, mottled with black centres to 

 the feathers ; the sides of the neck white, with scarcely any blackish 

 spots ; lores and a narrow eyebrow, as well as the feathers below 

 the eye, sandy white ; ear-coverts dark brown, with a sandy wash ; 

 cheeks white, spotted and streaked with black ; a line along the 

 lower cheeks aud the throat white, separated by a dusky streak ; 

 the lower throat minutely spotted with dark brown, increasing in 

 size on the fore neck and chest, and still more on the sides of the 

 breast ; the latter slightly washed with rufous ; entire abdomen, 

 thighs, and under tail-coverts isabelline white ; sides of body and 

 flanks strongly washed with isabelline brown, and slightly streaked 

 ■with darker brown ; under wing-coverts isabelline white, the axil- 

 laries ashy with hoary margins ; quills dull ashy below, isabelline 

 along the inner webs : " bill black ; feet reddish ; iris brown " 

 (Loche). Total length 6-6 inches, culmen 0-8, wing 4, tail 2-4, 

 tarsus 0-95. 



The Spanish bird, which has always been identified with the 

 Algerian C. duponti, seems to be different, but I have only been able 



