582 KHEIDJi. 



Rhea americaua, Wied, Reise nach Bras. ii. pp. 187, 192 (part. ?) 

 (1821); Licht. T'erz. Doubl. p. 69, n. 710 (Sau Paulo) (1823); 

 Wied, Beitr. Naturg. Bras. iv. p. 559 (part., Campo Geral, Rio 

 San Francisco, Prov. Peruambuco) (1832) ; ? Licht. Nom. Av. 

 p. 88 (Brazil) (1854); Burm. Sysf. Uebers. Thier. Bras. iii. p. 352 

 (part.) (Campos, interior of Brazil) (1856): Reinh. Vid. Medd. 

 natnrh. Foren. Kjobenh. 1870, p. 46 (Rio San Francisco). 



Rhea macrorhynclia, Sdat. P. Z. S. 1860, pp. 207, 208, f. 1 (head), 

 p. 210 (ex patria ig:nota) ; id. Arm. ^- Mag. N. H. (3) vi. pp. 142, 

 143, f. 1 (head) (186U) ; id. Ibis, 1860, p. 310 ; id. Rep. Brit. Assoc. 

 Adv. Sc. for 1861, Misc. Comrn. p. 158 (1862) ; id. Trans. Z. S. 

 iv. p. 356, f. 2, pi. Ixix. (1862) ; Cunnitigh. P. Z. S. 1871, p. 105 ; 

 G. R. Gr. Hand-list, iii. p. 2, n. 9843 (1871) ; Sclat. ^ Salv. 

 Nom. Av. Neotrop. p. 154, n. 2 {ex loco ignoto) (1873) ; Hurting, 

 Ostriches ^ Ostr. Farm. pp. 92, 93, with fig. of the head (1877) ; 

 Sclat. P. Z. S. 1877, p. 160 (N.E. Brazil) ; Gieb. Tkes. Orn. iii. 

 p. 424 (1877) ; Forbes, Ibis, 1881, pp. 316, 325, 356, 360 (N.E 

 Brazil) ; id. P. Z. S. 1881, pp. 784, 786 (trachea) ; Parker, P. Z. S. 

 1883, pp. 141, 142 (respiratory organs); ScM. List Vert. An. 8th 

 ed. p. 553, f. 60 (head) (Maranham and Pernambuco) (1883) ; 

 Fimsch, Ibis, 1884, p. 353; Gadow, P. Z. S. 1885, pp. 308-322, 

 fiE. 2, 5 (skull), f. 9 (trachea); ? Claraz, t. c. pp. 324, 325 

 (eggs) ; Sclat. ibid. p. 327 ( = either R. americana or R. darwini) ; 

 Gadow, Bronn^s Thier-Reichs, vi. 4, Aves, p. 104 (1893) ; Schal. 

 J. f. O. 1894, p. 13; A. Newton, Diet, of B. pp. 787, 788 (pt. 3, 

 1894). 



Ema, Burton, Highlands of Brazil, ii. p. 26 (Minas), p. 296 (Rio 

 San Francisco) (1869). 



Very similar to R. americana, but is distinguishable by its 

 generally browner colouring, by the darker crown, which is nearly 

 black, and by its longer and narrower bill. 



Immature birds have the plumage of a tawny brown (Forbes). 



Hah. N.E. Brazil, principally the provinces of Pernambuco and 

 Bahia. 



a, b. Ad. St. & skel., c?. Brazil. Zoological Society. 



(Type of species.) 

 c. Ad. sk. 



3. Ehea darwini. 



Emu near to the Strait of Magellan, Dobrizhoffer, Account of the 

 Abipones (Engl, trausl.) i. p. 314 (1784). 



Troisieme espece d'Autruche, UOrb. Bull. Sc. Nat. vol. xix. p. 221 

 (1829) ; id. Ann. Sc. Nat. xxi. Revue Bibliogr. p. 16 (1830). 



Ilhui of the Patagonians, D'Orb. II. cc. 



Cosquella of the Pampas, D'Orb. II. cc. 



Rhea, n. sp., Darwin, Letters, p. 16 (1834) (c/. G. R. Gr. Gen. B. 

 iii. p. 627). 



Rhea peunata, D'Orb. Voi/. Amir. Mer., Itin. ii. p. 67 (note), 

 p. 194 (note), pp. 212, 303, n. 3 (note) (1835-38) (descr. iucom- 

 pleta) ; id. Wieqm. Arch. 1839, i. p. 56; Wiepn. ibid. (note,= 

 Rh. darwinii) ;'(?. R. Gr. List B. Brit. Mus. iii. p. 64 (1844); 



