TANGARIUS.—-MOLOTHRUS. 373 
probably stains acquired in the course of incubation. Seven 
examples measure from °9 to 1:02 in length, and from ‘7 to ‘76 in 
breadth. 
These eggs agree with the description given by Nehrkorn. 
7. S$. Geronimo, Guatemala, 2nd June Salvin-Godman Coll. 
(RK. Owen). 
Tangarius zneus ( Vag/.). 
(Plate XVI. fig. 7.) 
Molothrus eneus, Lawr. Mem. Bost. Soc. N. H, ii. p. 281 (1874); Sed. 
Cat. B. Brit. Mus. x1. p. 855 [part. | (1885). 
Callothrus eneus wneus, Ridgw. Lurds North § Middle Amer. ii. p. 203 
1902). 
eines zeneus, Sharpe, Hand-l. vy. p. 489 (1909); Nehrk. Kat. Eier- 
samml. p. 342 (1910). 
Two eggs, said to be these of the Bronzed Cow-bird, are of along 
pointed oval shape and devoid of gloss. They are greyish-white, 
with crooked and twisted lines and markings of deep chocolate- 
brown and a few shghter lines of dark purplish-grey. They 
measure respectively 1:U9 by °65, and 1-0 by -6. 
2. Mazatlan, Mexico (4. Forrer). Crowley Bequest. 
Genus MOLOTHRUS, Swazns. 
Cf. Ludwig Holtz, J. f. O. 1872, p. 193, Taf. i. figs. 2, a—e. 
Molothrus ater (Bodd.). 
Icterus pecoris, Thien. Fortpflanz. ges. Vog. tab. xxxvii. fig. 1, a, b- 
(1845-54). 
Molothrus pecoris, Verrill, Pr. Essex Inst. iii. p. 151 (1862); Baird, 
Brewer § Ridgw. N. Amer. Birds, ii. p. 154 (1874); Coues, Birds 
N.- West, p. 180 (1874) ; Sel. Cat. Birds B. M. xi. p. 333 (1886) 
[part.]; Salve. § Godm. Biol. Centr.-Amer., Aves, i. p. 450 (1887) ; 
Nehrk. Kat. Eversammil, p. 99 (1899). 
Molothrus ater, Bendire, Life-Hist. N. Amer. Birds, ii. p. 484, pl. vi. 
fives. 38-6 (1895); Sharpe, Hand-l. v. p. 490 (1909); Nehrk. Ket. 
Eiersammil. p. 342 (1910). 
Molothrus ater obscurus, Bendre, t. c. p. 441, pl. vi. figs. 7, 8. 
Molothrus ater ater, Ridgw. Birds North § Midaie Amer. ii. p. 207 
(1902). 
The eggs of the North-American Cow-bird are of a somewhat 
broad oval shape and moderately glossy. They are white or 
greyish-white, densely speckled and mottled, especially at the broad 
end, with brown or dull reddish-brown and underlying lavender- 
grey. They measure from °8 to ‘92 in length, and from ‘63 to -7 
in breadth. 
