Ibises of the Genus Tlieristicus. 509 



tibus ; ularuiu tectricibus miiioribus et mediis ciucrcis 

 albido limbatis; alarum tectricibus majoribus albis vittam 

 longitudinalem maximani formautibus ; remigibus ac 

 Cauda couica elougata nigris, metallice e viridi resplen- 

 dentibus ; remigum secuiulariorum basi obtecta alba : 

 rostro nigro; iride rubra ; pedibus colore roseo gerauii. 

 Long. tot. circa 750 mm. ; al. 440 ; caud. 230 ; rostri 

 culm. 170; tarsi 8G. 

 Junior. Pelle uuda froutis et capitis lateram Isevi, baud 

 verrucosa ; plaga pallida ahe sordide alba. 

 Hab. Cayenne {Buffon), Guiana Britannica (Scliomburgk, 

 Whitely) ; Venezuela^ Orinoco et Zulia (fide Ernst), Alta- 

 gracia {Cherrie) ; Colombia, Bogota et Antioquia {Mus. 

 Berl.) ; Brasilia, Santarem {Alle7i), Pernambuco {Marc- 

 ijrave), Bahia {JVied), Paracatu, Rio S. Francisco [Lund), 

 Matto Grosso {Natterer, Smith), S. Paulo et Parana 

 {Natterer), Rio Grande do ^Vi\{Wied) ; Bolivia, Valle Grande 

 {Garlepp, in Mus. Berlepsch) ; Paraguay [Azara), Rio 

 Pilcomayo [Kerr) ; Uruguay (^Barrows) ; Northern Argen- 

 tina, Salta [Durnford, BoreUi), Tucuman, Parana, Mendoza 

 [Burmeister), Cordova [Frenzel). 



This species is easily distinguishable, having the breast 

 black like, the rest of tlie underparts, a broad white band on 

 the Avings, formed by the greater wing-coverts, and the 

 hidden base of the secondaries white, also by the rusty- 

 fulvous colour of the cap and of the two spots at the base 

 of the neck, one anterior and the other posterior. 



As stated above, I have examined nine specimens of this 

 species. The first is from Cayenne, the very locality in- 

 habited by the type-specimen, figured by Daubentou, on 

 which were based both. Scolopax caudatus Bodd. and Tantalus 

 albicollis Gm. This specimen is strikingly similar to the 

 figure, and remarkable for its great size, and the numerous 

 warts on the naked skin of the forehead and sides of the 

 head. 



Scarcely different from it are the two specimens from 

 Venezuela, and two others from Colombia (Bogota and 

 Antioqu-ia), sent to me by Graf von Berlepsch ; the only 

 difference of any importance is in the colour of the lower 



