174 TTTEDTD^, 



They measure from -91 to 1*00 in length, and from -65 to -73 in 

 breadth. 



3. Mexico. Gould Coll. 



2. Mexico ( Tristram Coll.). Crowley Bequest. 



1. Jalapa, Vera Cruz {de Oca). Salvin-Godman Coll. 



2. Guatemala. Salvin-Godman Coll. 

 2. Costa Rica, 27th May ( C. F. Under- Crowley Bequest. 



wood). 

 2. Costa Rica, 8th July [C. F. U.). Crowley Bequest. 



Catharus frantzii, Cab. 



Catharus frantzii, Salv. ^' Godm. Biol. Centr.-Amer., Aves, i. p. 4 (1879) ; 

 Seebohm, Cat. Birds B. M. v. p. 290 (1881) ; Sharpe, Hand-l. iv. 

 p. 181 (1903). 



A pair of the eggs of the Costa-Rican Thrush-Robin in the Col- 

 lection are of a slightly blunted oval shape and dull texture. 

 They are of a pale blue colour, prettily speckled and spotted with 

 lilac-red and lUac. They measure respectively : -97 by -71 ; '98 



by -71. 



2. Irazu, Costa Rica, 9th Jime (C. F. Crowley Bequest. 

 Underwood). 



Catharus phseopleurus, Scl. 4' Salv. 



Catharus phfeopleurus, Scl. ^- Salv. P. Z. S. 1879, p. 491 ; Seebohm, Cat. 

 Birds B. M. v. p. 287 (1881) ; Nehrk. Kat. Eiersamml. p. 39 (1899) ; 

 Sharpe, Hand-l. iv. p. 182 (1903). 



The eggs of the Colombian Thrush-Robin appear to be of a 

 regular oval form, but the specimen from the Crowley Collection 

 is much elongated. They are of a pale bluish-white colour, spotted 

 and blotched with reddish-brown and underlying lilac. Measure- 

 ments vary from -95 to 1-08 in length, and from -70 to -72 in 

 breadth. 



2. Antioquia, U. S. Colombia (r. A'. Salvin-Godman Coll. 



Salmon). 



2. Medellin, Antioquia {T. E. S.). Salvin-Godman Coll. 



1. Colombia. Crowley Bequest. 



Genus SIALIA, Swains. 



The eggs of the species of Sialia represented in the Collection are 

 of a broad oval shape and possess a considerable amount of gloss. 

 They are of a pale spotless blue colour, and are so much alike 

 in size and colour that the eggs of the different species cannot be 

 separated from each another. 



