POLIOrTILA. 



271 



Polioptila californica, Brewster. 



Piilii)ptila nu'lanura, Baird, Brewer Sf Ridyw. N. Amer. Birds, i. p. 81 



(1S74). 

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



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



Four eggs of the Black-capped Gnatcatcher in the Collection 

 measure respectively : •62bj-*48; "64 by "5 ; -62 by "45; "6 by '48. 



1. Cnlifoinia {Smiths. Inst.). Salvin-Godman Coll. 



4. Sail Diego, California, 4th May. W. Kadcliti'e Saunders, Esci. 



[P.]. 



Polioptila albiloris, Scl. S,- Salv. 



Polioptila albiloris, Ozcen, Ibis, 1861, p. 61, pi. ii. fig. 3; Sah\ ^- Godm. 

 Jiiol. Cenfr.-Amer., Aves, i. p. 5;3 (1879) ; Sharpe, Cat. Birds B. M. 

 X. p. 454 (1885) ; Nehrk. Kat. Eiersanunl. p. 26 (1899) ; Sharpe, 

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



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

 in leugth, and from '42 to '5 in breadth. 



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

 (R. Oiroi). 



2. Yucatan (Xchrkor?i Coll.). Crowley Bequest. 



3. Yucatan. Crowley Bequest. 



Genus PARISOMA, Swains. 



Parisoma subcaerulemu {VLilL). 



(Plate YIII. fig. 11.) 



Parisoma subcarruleum, Sharpe, ed. Layard's Birds S. Africa, p. 332 

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

 p. 242 (1901) ; Stark 4" Sdater, Fauna S. Africa, Birds, ii. p. 75 

 (1901). 



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

 ordinary oval shajjc 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. llartl. 



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

 id. Cat'. Birds Ii. .»/. iv. p. 270 (1879) ; id. Hand-/, iii. p. 242 (1901) j 

 Stark ^- Sdater, Fauna S. Africa, Birds, ii. p. 76 (1901). 



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

 to tho.se of P. suhcirruJeuiit. Thev measure respectively : "72 by "52 ; 

 •71 by -52. 



2. Nels Poort, S. .Africa ('/'. Atmorc; Crowley Bequest. 

 Tristram Coll.). 



