AVES IBIDID^. 351 



& Huds. Argent. Orn. II. p. no (1889: cold weather visitor) ; Graham 

 Kcrr, Ibis, 1891, p. 270, 1892, p. 145 (Pilcomayo, Fortin Page); 

 James, New List of Chil. B. p. 8 (1892) ; Holland, Ibis, 1892, p. 205 

 (Estancia Espartilla) ; Schalow, Zool. Jahrb. Suppl. IV. p. 678 (1898: 

 Villarica). 

 Theristicus me/anopes, Heine & Reichen. Nomencl. Mus. Hein. p. 313 



(1890 : Straits of Magellan : Chili). 

 Ibis ( Theristicus} candatus (nee Bodd.), Oust. Miss. Scient. Cap Horn, 



Oiseaux, p. 140 (1891). 

 Ibis caudatus (nee Bodd.), Frenzel, J. f. O. 1891, p. 124 (Cordova, Arg. 



Rep.). 



Theristicus melanopsis, Sharpe, Hand-list B. I. p. 186 (1899). 

 GENERAL DESCRIPTION. 



Si: -Adult male. (P. U. O. C. 7969. Rio Chico, Patagonia, 6 

 March 1898. A. E. Colburn.) 

 Total length, about 28 inches. 

 Wing, 16.3. 

 Culmen, 6.2. 

 Tail, 7.9. 

 Tarsus, 3.1. 



The sexes do not differ materially in size. 



Color. Adult male (cited). General color above head and neck orange- 

 chestnut, shaded over a white ground ; back silvery grey with sandy 

 buff edging to the feathers. Below, orange-chestnut shaded on a white 

 ground to and over breast, then abruptly sooty black. 



Head : Crown deep orange-chestnut, the bases of all the feathers clear 

 white, shading to pale orange on the sides of the face and head. A naked 

 black area extending from the bill to back of the head and surrounding it. 

 Neck : Above like crown, but paler, except close to the body ; shading 

 to much paler on the sides and becoming almost white below. A naked 

 black throat-patch, having on the chin a long narrow isabelline colored 

 patch of feathers. 



Back: Mantle silvery grey, with sandy buff margins and a subterminal 

 dusky band to each feather. Lower back, rump and upper tail-coverts 

 black, with a dark green gloss. 



Tail : Rectrices black, with a dark green gloss. 



Wings : Upper wing-coverts silvery grey, lighter than the mantle, the 



