510 Count T. Salvador! o)i tlie 



parts (breast, abdomen, and under tail-coverts) being of a 

 deeper black. Moreover, the rusty-fulvous colour of the 

 pileum and of the two spots at the base of the neck, in front 

 and behind, arc of a deeper hue in the Bogota specimens 

 than in the two from Venezuela. 



The type-specimen of Theristicus colmnbiunus, sent me by 

 Dr. Finsch, certainly belongs to the present species ; it is 

 somewhat immature (as shown by the absence of warts on the 

 forehead and sides of the head, the skin being {[uitc smooth) 

 and therefore has the light band on the wings greyish white, 

 and the hidden base of the secondaries dull whitish. 



A specimen in the Turin Mnseum, received " from 

 Brazil" (no. 3), and another from Bolivia collected by 

 Garlepp (Mus. Berlepsch) (no. 9) have the lower parts 

 lighter, somewhat more greyish than those mentioned above ; 

 both have the forehead more extensively feathered, and the 

 dimensions somewhat smaller, but the differences seem to be 

 well within the limits of individual variation. 



The specimen from Salta (no. 2), which, being a female, 

 is somewhat smaller than the Cayenne bird, is quite similar to 

 this, and diflers only in the forehead being less naked, and the 

 whitish colour of the neck more distinctly tinged with fulvous. 



The geographical range of this species has been very well 

 indicated by Berlepsch and Stolzmanu. It is confined to the 

 eastern part of Southern America, and from Cayenne extends 

 westward to British Guiana, Venezuela, and Colombia, and 

 southward through Brazil, to Bolivia, Paraguay, Uruguay, 

 and Northern Argentina, which probably is the southern 

 limit of the species, as the specimens in the neighbour- 

 hood of Buenos Ay res, which are found there during the 

 'winter, possibly belong to T. melanopis. This, however, can 

 be ascertained only by examination of specimens collected in 

 that country *. 



* Mr. Hudson (P. Z. S. 1«71, p. 2(ji) describes the Vanduria de 

 Invierno, which is fuund during the winter south of Buenos Ayres, aa 

 having the wings and bacli ash-blue, a cliaracter of T. melanojns, acd the 

 under surface and belly black, which is a feature of T. cuudatus ! Still 

 I am inclined to believe that the bird mentioned is T. melanopis. 



