646 ALAUDIDJ5. 



Adult male. General colour above vinous isabcUine or sandy 

 vinous ; -wing-coverts like the back, the greater series slightly paler 

 at the ends ; primary-coverts pale brown, externally sandy rufous ; 

 quills also pale dusky brown, sandy rufous along the outer web ; 

 primaries with more than the basal half of the outer web entirely 

 rufous ; centre tail-featliers dusky brown, sandy rufous at the tips 

 and on the edges, this rufous colour increasing towards the base of 

 the feathers, which is almost entirely rufous ; remainder of the 

 tail-feathers dusky brown, rufous along the outer webs and round 

 the tips, the extreme bases of the feathers being also rufous ; head 

 uniform sandy vinous like the back ; lores and feathers above and 

 below the eye whitish ; ear-coverts sandy vinous like the head ; 

 cheeks and throat whitish ; remainder of under surface of body pale 

 sandy isabelline, lighter on the lower abdomen and under tail- 

 coverts ; on the chest a few indistinct spots of dusky brown ; under 

 wing-coverts and quill-lining rufous : " bill brownish tlesh-colour 

 above, yellow below and on the margins ; iris brown " (Loche). 

 Total length 6-5 inches, culmen 0-65, wing 3-85, tail 2-55, tarsus 

 0-85. 



Adult female. Similar to the male in colour, but a little smaller. 

 Total length 5'7 inches, culmen 0-G, wing 3-6, tail 2-4, tarsus 0-8. 



Young. Similar to the adult and uniform sandy rufous, but dif- 

 fering in the centre tail-feathers, whicli are entirely sandy rufous 

 with only a little dusky brown along the shaft. In one nestling 

 this is even wanting altogether and the feathers are entirely rufous. 



A specimen from Nubia, presented by Dr. Leith Adams, is much 

 paler than the Algerian birds, but evidently belongs to the same 

 form, on account of the sandy-rufous inner secondaries, these being 

 ashy brown in the darker A. deserti. 



Jlah. Algerian Sahara, ranging into Nubia. 



a, h. Ad. sk. Algeria. Gould Coll. 



c. 5 ad. sk. Algeria {Loche). Sharps Coll. 



d. S ad. sk. Sahara {Loche). Shelley Coll. 



e. Ad. sk. Laghouat, April 4. J. II. Gurney, Esq. [P.]. 

 f;<J-6 2 ad. ; El Kantara, Mav {C. Dixon). Seebohm Coll. 



h. S jr. sk. 

 /. .luv. sk. Biskra, May G {H. J. Ehces). Seebohm Coll. 

 k. $ ad. sic. Nubia. Dr. A. Leith Adams [P.]. 



."3. Ammomanes deserti. 



Alauda deserti, Licht. Verx. DouU. p. 28 (182^) ; Bp. Cov.«j>. i. p. 244 



(1850). 

 Alauda isabeUina, Tern?)}. PI. Col. iii. pi. 214. fig. 2 (182-3) ; liiipp. 



Neue Wirb. p. 104 (1835) ; Sold. Rev. Crit. p. Ix (1844). 

 Mirafra deserti, Grai/, Gen. B. ii. p. 383 (1844). 

 Melauocorypha isabeUina, liiipp. Si/st. Uehers. p. 78 (1845). 

 Ammomanes deserti, Cah. Mus. Hein. Th. i. p. 125 (1850). 

 Melanocorypha deserti etc., Brehm, Tog. Deidschl. pp. 121, 122 



(18.55). 

 Ammomanes isabeUina, Trisfr. Ibis, 1850, pp. 34, 422; E. V. Taylor, 



Ibis, 1804, p. 04. 



