26 



suppose Spix's bird was obtained. In the Museum at Brussels I have 

 observed this bird marked " Tanagra herhacea" and at Neufchatel 

 are some individuals from Surinam labelled " Calospiza viridis" but 

 both these names are, I believe, unpublished. 



Prince Bonaparte's term ' pusilla' is one of the most appropriate 

 appellations for this bird, as it is the smallest of all the members of 

 this genus at present known, although not much inferior in size to 

 Calliste xanthogastra. 



