66 TROGLODTTIDiE. 



The two eggs of tlic Chest nut-liackfcl Cactus-Wren in the Collection 

 are of a regular oval form and exhibit very little gloss. They are 

 of a creamy-white colour, spotted and mottled all over with olive- 

 brown and lavender, the markings forming an indistinct cap at the 

 broad end. One of them measures -83 by -62 ; the other is unfor- 

 tunately too much damaged to be accurately measured. 



2. Chuacus, Guatemala (O. Saliin Sf Salviu-Godman Coll. 

 F. D. Godinan). 



Heleodytes couesi {Sharpe). 

 (Plate V. fig. 1.) 



Campylorhynchus biuuueicapillus, Baird, Brewer ^ Bidyw. N. Anier. 



Birds', i. p. 132 (1874) ; Coues, Birds Colorado Vail. p. 156 (1878) ; 



Sa(v. 8,- Godm. Biol. Cenfr.-Amer., Ares, i. p. 67 (1880). 

 Campylorhynchus couesi, Sharpe, Cat. Birds B. M. vi. p. 196 (1881); 



Nehrk. Kat. Eier.m7nml. p. 45 (1899). 

 Heleodytes couesi, Sharpe, Iland-l. iv. p. 74 (1903). 



The two eggs of Coues's Cactus- Wren in the Collection are of a 

 regular oval shape and slightly glossy. They are of a pinkish-white 

 colour, densely speckled and mottled aU over with brownish piuk, 

 the markings forming an ill-defined zone round the broad end. 

 Two examples measure respectively : '9 by '65 ; -SB by 'GS. 



2. Tucson, Arizona (Henshaiu Coll.). Salvin-Godman Coll. 



Heleodytes affinis {Xantus). 



298; 



Campylorhynchus affiuis, Xavtus, Proc. Acad. Philad. 1859, p. 



Baird, Brewer £>- liiiff/to. N. Avier. Birds, i. p. 133 (1874). 

 Campylorhvnchus brunneicapillus, Sharpe, Cat. Birds B. M. vi. p. 197 



(1881)' [part.]. 

 Heleodytes aifinis, Sharpe, Hand-l. iv. p. 75 (1903). 



The eggs of Xantus's Cactus-Wren vary from a narrow to a broad 

 oval shape and are more or less glossy. They are of a creamy-white 

 ground-colour, in some cases densely mottled, the ground-colour 

 being completely hidden, in others speckled and spotted, and in 

 others again speckled and blotched, with brownish pink and lilac. 

 The markings are of a somewhat darker colour at the broad end, and 

 generally form a zone or cap at that part. Specimens measure from 

 •9 to 1-1 in length, and from -65 to -72 in breadth. 



1. California (Stniths. Inst. : Tristram Crowley Bequest. 



Coll.). 

 .3. San Diego Co., California, 4th April. Crowley Bequest. 

 7. San Diego Co., California, 5th April. W. Eadcliffe Saunders, Esq. 



[P.]. 

 4. San Antonio, California, 2nd May. E. Lacy, Esq. [P.]. 



2. Cape St. Lucas, California (J. Salvin-Godraan Coll. 



Xuntus). 



