AVES RHEID^E. 



al Rio Negro, Zool. p. 58 (1881); Parker, P. Z. S. 1883, p. 141 

 (anatomy); Gadow, P. Z. S. 1885, pp. 308-322 (anatomy); Scl. t. c. 

 p. 324 (egg); Ball, Notes of a Natural, in S. America, p. 261 (1887); 

 Phil. Ornis. IV. p. 159 (1888; Atacampa); Scl. & Huds. Arg. Orn. 

 II. p. 219 (1889); Scl. P. Z. S. 1890, p. 412 (Tarapaca); Oust. Mis. 

 Scient. Cap Horn. Ois. p. 247 (1891); Scl. P. Z. S. 1891, pp. 132, 

 I 37> 334 (Canchosa); id. P, Z. S. 1892, p. 472 (in confinement); 

 James, New List Chil. B. p. 14 (1892: Tarapaca); Blaauw. P. Z. S. 

 1893 p. 532 (nidification); Schal. J. f. O. 1894, p. n (eggs); Salvad. 

 Cat. B. Brit. Mus. XXVII. p. 582 (1895); Nath. J. f. O. 1896, p. 257 

 (eggs); Lane, Ibis, 1897, p. 316 (Andes of northern Chile); Schal. 

 Zool. Jahrb. Suppl. IV. p. 646 (1898: Punta Arenas); Sharpe, 

 Handl. B. I. p. i (1899); Martens, Vog. Hamb. Magalh. Sammelr. 

 p. 23 (1900; Tarapaca); Carabajal, La Patagonia Part II. p. 250 

 (1900); Salvad. Ann. Mus. Genov. (2) XX. p. 634 (1900); Gates, 

 Cat. Bds. Eggs, Brit. Mus. I. p. 2 (1901); Prichard, Thr. Heart 

 Patagonia, 1 pp. 63, 136, 163, 239 (1902). 



Avesting petizo, Gosse, Bull. Soc. Acclim. III. p. 297 (1856). 



Rhea americana subsp. darwinii, Bocking, Archiv fur Naturg. XXIX. p. 

 213 (1863). 



Struthio darwini, Sternb. J. f. O. p. 274 (1869) (Buenos Ayres). 



Pterocnemis darwinii, Scl. & Salv. Nomencl. Av. Neotrop. p. 154 (1873). 



Avestruz petise, Darw. Natural. Voy. round the World, pp. 92-94 (1882). 



FIG. 3. 



GENERAL DESCRIPTION. 



Size. Adult male. Total length, 

 about 36 inches. 



Bill from gape, 3.6 inches. 



Tarsus 10.5 to 11 inches. 



Princeton University collection, No. 

 6,704. 



Color. General color buff-brown, the 

 tips of many of the feathers of the back, 

 and of all of the quills silvery white. 



Head : Grayish buff. The hairy long 

 feathers of the brow, crown, sides of the 

 face and occiput deep umber, giving a dusky appearance. 



1 Full title, Through the Heart of Patagonia. 



Head of Rhea darwini. 

 natural size. 



Profile. 



