AITHUKUS. — OREOTROCniLUS. — OKEOPTEA. 89 



Two eggs of the White-throated Humming-bird measure re- 

 spectively : -62 by "36 ; '63 by •38. 



2. Iguape, Brazil, 3rd Oct. Crowley Bequest. 



Genus AITHURUS, Cah. 6f Heine. 



Aitliurus polytmus {Linn.). 



Trochilus polytmus, Gosse, Birds Jamaica, p. 97 (1847) ; Gould, Mon. 



Troch. ii. pi. 98 (1857). 

 Aithurus polytmus, Salv. Cat. Birds B. M. xvi. p. 64 (1892) ; Nehrk. 



Kat. JEiersamml. p. 152 (1899) ; Sharpe, Hand-l. ii. p. 120 (1900). 



The eggs of the Black-capped Humming-bird in the Collection 

 measure respectively : -51 by '36 ; '54 by -32. 



1. [Jamaica.] Crowley Bequest. 



1. St. Thomas, Jamaica, 2ud July Orowlev Bequest. 

 (C. B. Taylor). 



Genus OREOTROCHILUS, Gould. 



Oreotrochilus leucopleurus, Gould. 



Oreotrochilus leucopleurus, Gould, Mon. Troch. ii. pi. 71 (1849) ; Scl. Sf 

 Huds. Arqent. Orn. ji. p. 1 (1889) ; Salv. Cat. Birds B. M. xvi. 

 p. 33G (1892) ; Sharpe, Hand-l. ii. p. 121 (1900). 



An egg of the White-sided Hill-Star measures '66 by -39. 



1. Buenta del Inca, Andes of Chile E. A. Fitzgerald, Esq. [P.]. 



(P. K. Gosse, Junior). 



Genus OREOPYRA, Goidd. 



Oreopyra leucaspis, Gould. 



Oreopyra leucaspis, Goi</f7, ilf 072. Troch. iv. pi. 264 (1861); Salv. Cut. 

 ^iVt?s 5. iV/. xvi. p. 306 (1892) ; id. Sf Godm. Biol. Centr.-Avter., 

 Aves, ii. p. 332 (1892) ; JS'ehrk. Kat. JEiersamml. p. 153 (1899) : 

 Sharpe, Hand-l. ii. p. 123 (1900). 



The eggs of the White-throated Oreopyra in the Collection 

 measure respectively : -57 by -38 ; -53 by '35. 



2. Chiriqui, Panama {Nehrkorn Coll.). Crowley Bequest. 



Oreopyra calolaema, Salvin. 



Oreopyra calolaema, Sharpe in Goidd''s Mon. Troch., Suppl. pi. 6 (1885) ; 

 Salv. Cat. Birds B. M. xvi. p. 307 (1892) ; id.Sf Godm. Biol.Centr.- 

 Amer., Aves, ii. p. 333 (1892) ; Sharpe, Hand-l. ii. p. 123 (1900). 



Two eggs of the Purple-throated Oreopyra measure respectively : 

 •58 by -4; -6 by -4. 



2. Aznhar de Cartago, Costa Eica, Crowlev Bequest, 

 28th Dec. (C. F. Underwood). 



