POLJOPTILA. — PAEISOMA. 271 



Polioptila californica, Brewster. 



Polioptila melaniira, Baird, Brewer & Ridqw. N. Amer. Birds, i. p. 81 



(1871). 

 Polioptila californica, Sharpe, Cat. Birds B. M. x. p. 451 (1886) ; id. 



Mand-l. iii. p. 242 (19Ul). 



Four eggs of the Black-capped Gnateatclier in the Collection 

 measure respectively : -62 hy -48 ; '64: by -5 ; -62 by -45 ; -6 by -48. 



1. California (Smiths. Inst). Salvin-Godman Coll. 



4. San Diego, California, 4th May. W. Radclifte Saunders, Esq. 



[P.]. 



Polioptila albiloris, Sol. Sf Salv. 



Polioptila albiloris, Oicen, Ibis, 1861, p. 61, pi. ii. fig. 3 ; Salv. %■ Godm. 

 Biol. Centr.-Amer., Aves, i. p. 53 (1879) ; Sharpe, Cat. Birds B. M. 

 X. p. 454 (1885) ; Nehrk. Kat. Eiersamml. p. 26 (1899) ; Sliarpe, 

 Hand-l. iii. p. 242 (1901). 



The eggs of the Guatemalan Gnatcatcher measure from '52 to "6 

 in length, and from -42 to -5 in breadth. 



4. Ohancus, Vera Paz, Guatemala Salvin-Godman Coll. 

 (-B. Owen). 



2. Yucatan {Nehrhom Coll.). Crowley Bequest. 



3. Yucatan. Crowley Bequest. 



Genus PARISOMA, Swains. 



Parisoma subcseruleum (Vieill.). 



(Plate VIII. fig. 11.) 



Pariaoma subcperuleura, Sharpe, ed. Layard's Birds S. Africa, p. 332 

 (1875-84) i id. Cat. Birds B. M. iv, p. 268 (1879) ; id. Hand-l. iii. 

 p. 242 (1901) ; Stark Sf Sclater, Fauna S. Africa,- Birds, ii. p. 75 

 (1901). 



The eggs of the Eed-vented Flycatcher in the Collection are of an 

 ordinary oval shape and slightly glossy. They are white, speckled 

 and spotted, chiefly in the form of a zone round the broad end, with 

 umber-brown, ashy-brown, and lavender. They measure respec- 

 tively : -67 by "51 ; -72 by -55. 



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



Parisoma layardi, Eartl. 



Parisoma layardi. Sharpe, ed. Layard's Birds S. Africa, p. 334 (1875-84) ; 

 id. Cat. Birds B. M. iv. p. 270 (1879) ; id. Hand-l. iii. p. 242 (1001) ; 

 Stark Sf Sclater, Fauna S. Africa, Birds, ii. p. 76 (1901). 



The eggs of Layard's Flycatcher in the Collection are very similar 

 to those of P. suhcceruleum. They measure respectively : "72 by -52 ; 

 •71 by -52. 



2. NelsPoort, S. Africa (T. ^^OTore; Crowley Bequest. 

 Tristram Coll.). 



