190 TYRANNID.E. 



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

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

 lavender. They measure from -SG to 1 in length, and from "66 to 

 •72 iu breadth. 



1. Baliia {Tristram Coll.). Crowley Bequest. 



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



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



3. Argentine Republic, Oct. A. II. Holland, Esq. [Cj. 



2. Argentine Republic. Crowley Request. 



3. Buenos Ayres, Nov. (ii. 11'. Wldte). Crowley Bequest. 



Genus MUSCISAXICOLA, d'Orh. .j- Lafr. 



Muscisaxicola maculirostris, d'Orh. c^- Lafr. 



(Plate IV. fig. 7.) 



Muscisaxicola maculirostris, Scl. Cat. Birds S. M. xiv. p. 50 (1888) ; id. 

 ^ Huds. Ar<jcnt. Orn. i. p. 131 (1888) ; Sharjje, 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 'GG by '55 ; another is white, very sparingly dotted 

 with black, and measures "74 by 'oG. 



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



1. Chile. Crowley Bequest. 



Genus CENTRITES, Cah. 



Ceiitrites niger (Bodd.). 



(Plate IV. fig. 8.) 



Centrites niger, Scl. Cat. Birds B. M. xiv. p. 61 (1888) ; id. ^ ITuds. 

 Arqent. Orn. i. p. 134 (1888) ; James, Neiv List of Chilian Birds, 

 p. 3 (1892) ; Nehrk. Kat. Eicrsamml. p. 137 (1892) • Sharpe, Rand-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 brov\n and lavender. They measure from "70 to -83 in 

 length, and "G in breadth. 



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



3. Central Chile, Oct. Berkeley James Coll. 



Genus PLATYEHYNCHUS, Desm. 



Platyrhynclius cancrominus, Sd. c^- Salv. 



(Plate IV. fig. 10.) 



riatvrliynchus cancrominus, Scl. Cat. Birds B. M. xiv. p. OG (1888) ; 

 Saiv. ^ Godm. Biid. Coitr.-Amer., Aves, ii. p. 5 (1888) ; Sharpe, 

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



