HTDEOPSAtlS. SCOTOENIS. MACEODIPTEEYX. CI 



Hydropsalis climacoGercus, Tsoh. 



Hydrnpsalis trifurcata, Scl. & Salv. P. Z. 8. 1866, p. 193. 



Hydropsalis climacocercus, Hartert, Cat. Birds B. Mi xvi. p. COO (1892) ; 



Nehrh. Sat. Eiersamml. p. 157 (1809) ; von Ihering, Bev. Mus. 



Paidista, iv. p. 256 (1900) ; Sharpe, Hand-l. ii. p. 82 (1900). 



The egg of the Ladder-tailed Nightjar in the Colleotion is perfectly, 

 elliptical in shape and almost entirely devoid of gloss. It is of a 

 rich cream-colour, marked' all over with specks, spots and short 

 irregular lines of lavender-grey and dark brown. It measures 

 I'Ol by -8. 



1. Ucavali River, Amazonia Crowley Beq^uest. 



(E. Bartlett : Tristram CuU.). 



Genus SCOTORNIS, Swaim. 



Scotornis climacurus * ( Vieill.). 



Ca,primulgus climacurus, Thien. Fortfyflans. ges. Tog. tab. xlii. fig. 19 



(1845-54); Komig-Warlh. J.f. O. 1868, p. 377. 

 Scotornis longicauda, Hartert <!f- Kutter, J. f. O. 1886, p. 591. 

 Scotornis climacurus, Hartert, Cat. Birds B. M. xvi. p. 596 (1892) ; 



Nehrk. Kat. Biefrsamml. p. 157 (1899) ; Sharpe, Hand-l. ii. p. 82 



(1900). 



The eggs of the African Long- tailed Nightjar are elliptical in shape 

 and slightly glossy. They are cream-coloured, sometimes tinged 

 with pink, profusely smeared and blotched with grey or lavender and 

 two shades of brown. They measure from -97 to 1 04 in length, 

 and from "71 to -78 in breadth. 



2. Near Fashoda, White Nile,. R. McD. Hawker, Esq. [P.]. 



11th April. 

 2. Near Fashoda, 11th April. R. McD. Hawker, Esq. [P.l 



2. Near Fashoda, 7th May. R. McU. Hawker, Esq. [P.]. 



Genus MACB.ODIPTERYX, -Siiroins. 

 Macrodipteryx longipennis (Shaw). 



Macrodipteryx longipennis, Reichen. J.f. 0. 1891, p. 381 ; Sharpe, Hand-l. 



ii, p. 82 (1900). 

 Macrodipteryx niacrodipterus, Hartert, Cat. Birds B. M. xvi. p. 694 



(1892) ; Nehrk. Kat. Eiersamml. p. 156 (1899). 



The eggs of the Standard-winged Nightjar are of a blunt oval or 

 elliptical shape, and exhibit a considerable amount of gloss. They 

 are of a pinkish stone-colour, clouded and mottled with pale brown 

 and lavender-grey, Four examples measure respectively : 1-04 by 

 •77; lby75; Iby -73; -97 by -72. 



* Mr. Hawker procured in one and the same locality birds, some of which 

 are referable to the light and others to the dark form of this Nightjar. 



