i 



130 



are much broader, more clearly white, and more distinct, and the belly and crissum are white 

 instead of pale fulvous. It is quite possible, as I have already suggested, that these differences 

 may disappear when a larger series of the two forms shall have been compared, or when 

 examples from the intervening districts shall have been obtained ; but for the present, I think, 

 M. suhstriata must be retained as an apparently different representative species. 



I have no exact knowledge, I regret to say, of the exact district in which my skins of 

 M. suhstriata were procured. Bogota collections notoriously contain examples of the inhabitants 

 of two very different wood-regions — that of the valleys drained by the Magdalena, and that of 

 the southern slopes of the Colombian Andes, besides specimens from the treeless plains round 

 the capital itself. I should suppose, however, that the present bird is an inhabitant of the more 

 southern wood-region, although if such be the case we might have expected it to occur also in 

 collections from Eastern Ecuador. Here, however, so far as I am aware, it has not yet been 

 noticed. 



The figure (Plate XLIII.) is taken from the second specimen of this species which I 

 acquired, not from the original type, which has already been figured in the Zoological Society's 

 'Proceedings' for 1853 (Aves, pi. li.). 



The typical example is rather a longer skin than that now figured, being of a different 

 " make," and shows more decided white on the lores, front, and rictal bristles. Otherwise it is 

 scarcely different. 



