178 DENDKOCOLAPTID^E. 



The eggs of the Striped Spine-tail appear to be generally of a 

 regular shape, but one example in the Collection is cylindrical in 

 form. They are white and but slightly glossy. Four specimens 

 measure respectively: -8 by *6 ; *79 by '59; '75 by '55 ; *9 by *52. 



2. Argentine Republic. Crowley Bequest. 



2. Argentine Republic. Crowley Bequest. 



Siptornis humlcola (Kittl.). 



Siptornis humicola, Scl. Cat. Birds B. M. xv. p. 65 (1890) ; James, Neiu 

 List Chilian Birds, p. 4 (1892) ; Nehrk. Kat. Eiersamml. p. 149 

 (1899) ; Sharpe, Hand-L iii. p. 60 (1901). 



The eggs of the Ground Spine-tail vary from a pointed to a blunt 

 oval shape, and are sometimes elliptical. They are white and 

 slightly glossy. They measure from -85 to '92 in length, and from 

 62 to -68 in breadth. 



1. Bolivia (Tristram Coll.}. Crowley Bequest. 



4. Central Chile, Oct. Berkeley James Coll. 



4. Central Chile, Oct. Berkeley James Coll. 



3. Central Chile, Oct. Berkeley James Coll. 



3. Central Chile (Landbeck). Berkeley James Coll. 



4. Central Chile (Landbcck}. Berkeley James Coll. 

 3. Central Chile (Landbeck). Berkeley James Coll. 

 1. South Chile (Tristram Coll.). Crowley Bequest. 



Siptornis sordida (Less.). 



Synallaxis sordida, Dttmford, Ibis, 1877, p. 35 ; Scl. fy Huds. Argent. 



Orn. i. p. 184 (1888) ; Holland, Ib.'s, 1893, p. 487. 

 Siptornis sordida, Scl. Cat Birds B. M. xv. p. 68 (1890) ; Nehrk. Kat. 



Eiersamml. p. 149 (1899) ; Sharpe, Hand-L iii. p. 61 (1901). 



The eggs of the Sordid Spine-tail are of a regular oval form, 

 slightly glossy, and of a very pale greenish colour *. They 

 measure from -66 to '73 in length, and from '54 to -6 in breadth. 



3. Argentine Republic, Nov. A. IT. Holland, Esq. [0.1. 



5. Argentine Republic, Nov. A. II. Holland, Esq. [C.J. 



Siptornis anthoides (King). 



Siptornis anthoides, Scl. Cat. Birds B. M. xv. p. 70 (1890) ; Nehrk. 

 Kat. Eiersamml. p. 149 (1899) ; Sharpe, Hand-l. iii. p. 61 (1901). 



An egg taken in Bolivia, and referred to the Pipit-like Spine- tail, 

 is of a somewhat narrow shape, pointed at both ends, devoid of 

 gloss, and plain white. It measures '92 by -67. 



1. Bolivia (Tristram Coll.). Crowley Bequest. 



* Both Mr. Hudson and Herr Nehrkorn state that the eggs of this bird are 

 white. 



