190 TYRANNID^!. 



shape and devoid of all gloss. They are of a dark cream or pale 

 buff-colour, densely streaked and mottled with purplish brown and 

 lavender. They measure from *86 to 1 in length, and from *66 to 

 72 in breadth. 



1. Bahia (Tristram CollJ). Crowley Bequest. 



4. Argentine Republic, Oct. A. H. Holland, Esq. [C.]. 



4. Argentine Republic, Oct. A. H. Holland, Esq. [0.1, 



3. Argentine Republic, Oct. A. H. Holland, Esq. [C.J. 



2. Argentine Republic. Crowley Bequest. 



3. Buenos Ayres, Nov. (E. W. White). Crowley Bequest. 



Genus MUSCISAXICOLA, d'Orb. $ Lafr. 



Muscisaxicola maculirostris, d'Orb. $ Lafr. 



(Plate IV. fig. 7.) 



Muscisaxicola maculirostris, Set. Cat. Birds B. M. xiv. p. 59 (1888) ; id. 

 fy Huds. Aryent. Orn. i. p. 134 (1888) : Sharpe, Hand-l. iii. p. 99 

 (1901). 



The eggs of the Spotted-bill Tyrant-bird in the Collection are of 

 an oval shape and moderately glossy. One specimen is plain white, 

 and measures 'G6 by -55 ; another is white, very sparingly dotted 

 with black, and measures *74 by '56. 



1. Chile. E. C. Reed, Esq. [P.]. 



1. Chile. Crowley Bequest. 



Genus CENTRITES, Cab. 



Centrites niger (Bodd.). 



(Plate IV. fig. 8.) 



Centrites niger, Sd. Cat. Birds B. M. xiv. p. 61 (1888) ; id. # Huds. 

 Argent. Orn. i. p. 134 (1888) ; James, New List of Chilian Birds, 

 p. 3 (1892) ; Nehrk. Kat. Eiersamml p. 137 (1892) ; Sharpe, Hand-l. 

 iii. p. 100 (1901). 



The eggs of the Red-backed Tyrant-bird are of a blunt oval shape 

 and slightly glossy. They are greyish white, densely freckled with 

 greyish brown and lavender. They measure from '76 to '83 in 

 length, and '6 in breadth. 



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



3. Central Chile, Oct. Berkeley James Coll. 



Genus PLATYHHYNCHUS, Desm. 



Platyrhynchus cancrominus, Sd. $ Salv. 



(Plate IV. fig. 10.) 



Platyrhynchus cancrominus, Sd. Cat. Birds B. M. xiv. p. 6G (1888) ; 

 Salv. fy Godm. Biol. Centr.-Amer., Are?, ii. p. 5 (1888) ; Sharpe. 

 Hand-l. iii. p. 100 (1901). 



