10. THERISTICUS. 21 



near the vent, the longer ones purplish blue like the under tail- 

 feathers ; under wing-covcrts and axillaries black, glossed with pur- 

 plish blue; inner aspect of quills bronzy steel-green : " bill black, the 

 culmen crimson towards the base ; tarsi and toes dull red ; iris very 

 dark brown, with a naiTOW outer ring nearly white " {T. Ayres). 

 Total length 23 inches, culmen 5, wing 13-6, tail 5-7, tarsus 2-75. 

 Bah. Confined to Africa. 



a. Ad. sk. Senegal {UEinmlle). Riocour Coll. 



(Type of Ibis rhalcoptera.) 



b. Ad. St. Gambia. Governor Reudall [C.]. 



c. Var. sk. Denkera, Ashanti. Sharpe Coll. 



d,e. ^ 2 ad. South Africa. Sir A. Smith [C.]. 



sk. 



f, g. Ad. et South Africa. Purchased. 



pull. St. 



h. Ad. sk. P.irt Natal. Shellev Coll. 



i. Ad. sk. Natal. T. Avres, Esq. [C.]. 



k. 2 ad. sk. Zulu-land, July {Gordge). Shelley Coll. 



/. Ad. sk. Usambara Hills {Sir J. Kirk). Shelley Coll. 



VI. Ad. sk. Taveta, 300 ft. H. H." Johnston, Esq., 



C.B. [P.]. 



n. Skeleton. S. Africa. Eyton Coll. 



10. THERISTICUS. „ 



Type. 

 Theristicus, Wagler, Isis, 1832, p. 1231 T. caudatus. 



Range. Confined to South America. 



Key to the Species. 



a. Throat and breast orange-rufous; abdomen only 



black meJanopis, p. 21. 



h. Throat whitish ; fore-neck rufous ; entire breast 



as well as abdomen black caudatus, p. 23. 



1. Theristicus melanopis. 



? Le Petit Courlv d'Am^rique, Brus. Orn. v. p. 337 (1760). 



? Grey Ibis, Lath. Gen. Syn. iii. pt. 1, p. 110 (178.5). 



? Tantalus gi'iseus, Gm. S'yst. Nat. i. p. 653 (1788). 



Black-faced Ibis, Lat/i. Gen. Syn. iii. pt. 1, p. 108, pi. Ixxix. (1785). 



Tantalus melauopis, Gm. Syst. Nat. i. p. 653 (1788). 



Manduria 6 curucau, Azarn, Apunt. iii. p. 189 (1803). 



Ibis albicoUis {nee Gin.), Vieill. Xoiiv. Diet. d'Hisf. Xat. xvi. p. 17 



(1817); Neuu-ied, Beifr. Naturg. Bras., Viig. iv. p. 698 (1831) ; 



Burnieist. Beise La PlutaSt. ii. p. 510 (18(Jl : Parana, Mendoza, 



Tucuman). 

 Ibis melanopis, Waql. Syst. Av., Ibis, p. 373, sp. 17 (1827) ; Tschudi 



4- Cab. Faun. Peruan. pp. 51, 298 (18-45-46); Bnrm. Tk. Bras. 



iii. p. 421 (1856) ; Scl. Sf Salv. P. Z. S. 1869, p. 600 (Pitumarca) ; 



Huds. P. Z. S. 1872, p. 549 (Rio Negro, Patagonia) ; Beichen. 



J.f. O. 1877, p, 154. 

 Ibis alba, Less. Traite d'Orn. p. 567 (1831). 

 Theristicus melanopis, Wagl. Isis, 1832, p. 1232 ; Darwin, Voy. 



' Beagle,' Birds, Y- 128 (1841 : Patagonia p ; Gray, List Grail. Brit. 



Mus.\). 91 (1844: A£i-ica ! ; Straits of Magellan; Chili); Hartl. 



