AMBLYCERCUS. —CASSICULUS.—CASSIDIX. Snel 
Genus AMBLYCERCUS, Cabanis. 
Amblycercus solitarius ( Vevll.). 
(Plate XVI. figs. 5, 6.) 
Amblycereus solitarius, Sci. Cat. Birds B. M. xi. p. 826 (1886) ; Aplin, 
Ibis, 1804, p. 171; Ihering, Rev. Mus. Paulista, iv. p. 219 (1900); 
Sharpe, Hand-l. v. p. 487 (1909); Nehrk. Kat. Eiversammi. p. 341 
(1910). 
Two eggs of the Solitary Cassique, also known as the “ Boyero,” are 
of a long pointed oval form, pure white, and devoid of gloss; one 
egg has a tew scattered spots and markings of deep brownish-black 
and dull purplish-brown, the other has a few large irregular blotches 
of purplish-brown and smaller markings of the same colour scattered 
over the shell. They measure 1°12 by -74 and 1:2 by °75. 
2. Argentine Republic. Crowley Bequest. 
Genus CASSICULUS, Swans. 
Cassiculus melanicterus (Bonap.). 
(Plate XVI. fig. 10.) 
Cassiculus melanicterus, Lawr. Mem. Bost. Soc. N. H. ii. y. 278 (1874); 
Sel. Cat. Birds B. M. xi. p. 328 (1886); Salv.§ Godm. Biol. Centr.- 
Amer., Aves,i. p. 445 (1886); Nehrk. Kat. Eiersammil. p. 99 (1899) 
p- 341 (1910); Redgw. Birds North § Middle Amer. ii. p. WI 
(1902) ; Sharpe, Hand-l. v. p. 483 (1909). 
Eggs of the Mexican Hangnest are of a broad oval shape and 
devoid of gloss. They are very pale blue, sparingly spotted with 
black and lavender-grey, the markings of the latter colour being, 
however, very inconspicuous. Six examples measure respectively : 
Elpibyesco; ilo by “Si Ilo <by 70> Tl by Sls Il by, -8: 
LOS by -81. 
2, West Mexico. Crowley Bequest. 
4. Oaxaca, Mexico. C. G. Rickards, Ksq. [P.]. 
Genus CASSIDIX, Less. 
Cassidix oryzivora (Giel.). 
Cassidix oryzivora, Sel. § Salv. P. Z. S. 1879, p.510; Sel. Cat. Birds 
B, M. xi. p. 829 (1886); Salv. § Godm. Biol. Centr.-Amer., Aves, 
i. p. 444 (1886); Auschel, J. f. O. 1897, p. 168; Goeldi, Ibis, 1897, 
p- 361; Luler, Rev. Mus. Paulista, iv, p. 67 (1900): Ihering, Rev. 
Mus. Paulista, iv. p. 219 (1900); Schelz, J. f. O. 1900, p. 242 ; 
Goeldi, Bol. Mus. Paraense, iii. p. 208 (1901); Sharpe, Hand-l. y. 
p. 488 (1909) ; Nekrk. Kat. Liersammil. p. 341 (1910). 
Cassidix oryzivora violea, Ridgway Birds North § Middle Amer. ii. p. 197 
(1902). 
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