76 PIEKOCLIDIDJB. 



pinkish brown, are rather closely deposited over the whole shell. 

 It measures 1-66 by 1'15. 



1. Jeenpur, Sind, 10th July. Hume Coll. 



Pteroclidurus pyrenaicus (Briss.). 



Pterocles alchata, Thien. Forfpflanz. ges. Vog. p. 48, tab. x. fig;. 2 a, b 

 (1845-64) ; Baedeker, EierEur. Vdg. tab. 21. fig. 8 (1855-63) : Salvin, 

 Ibis, 1869, p. 362 ; Tristram, Ibis, 1860, p. 70 ; Bree, Birds Eur. iii. 

 p. 221, pi. — (1867) ; 2nd ed. iv. p. 131, pi. — (1875) ; Saunders, 

 Ibis, 1871, p. 223 ; Dresser, Birds Eur. vii. p. 67 (1874). 



Ptei-oelurus pyrenaicus. Grant, Cat. Birds B. M. xxii. p. 9 (1893). 



Pteroclurus alchata, Irby, Orn. 8tr. Gibr. 2nd ed. p. 236 (1895). 



Pteroclidurus pyrenaicus, Sharpe, Hand-l. i. p. 50 (1899). 



The eggs of the Western Pin-tailed Sand-Grouse may be separated 

 from those of all the other species of Sand-Grouse by their bold 

 and brilliant coloration. They vary from a pale creamy buff to 

 a fairly dark buff colour. The surface-markings consist of spots 

 and blotches of rather dark reddish brown. These are, as a rule, 

 very distinct and well-defined, but occasionally they are confluent, 

 and are always very evenly distributed over the egg. The 

 specimens in the Collecton measure from l-6o to 1-96 in length, 

 and froin 1-15 to 1-3 in breadth. 



Pteroclidurus namaquus (Gm.). 



(Plate VIII. figs. 5 & 10.) 



Pterocles namaqua, Sharpe's ed. Layard, Birds S. Africa, p. 574 



(1875-84). 

 Pteroclurus namaqua. Grant, Cat. Birds B. M. xxii. p. 10 (1893). 

 Pteroclidurus namaquus, Sharpe, Hand-l. i. p. 50 (1899). 



The two eggs of the Namaqua Pin-tailed Sand-Grouse in the 

 Collection differ much from each other in colour, but they can be 

 matched by eggs of the next species, P. exustus. They measure 

 respectively: 1-35 by ■'tiQ ; 1-33 by -95. 



2. South Africa. E. L. Layard, Esq. [P.]. 



