39 



ment I now find must be considerably modified. At the time of writing 

 it entirely escaped my notice that I had previously described a third un- 

 spotted species (Pinicola enucleator), and that still a fourth, namely, 

 Pyrrhuloxia sinuata, remarked upon in the same paper as in transitional 

 condition, was also plain. Mr. Ridgway has since informed me that the 

 following additional North American species are, in the first plumage, 

 entirely immaculate beneath : Henperiphonavespertina, Chrysomitris psaltria, 

 Chrysomkris psaltria mexicana, Spizella alrigularis, Cardinalis virginianus, 

 Pipilo aberti, Pipilofuseus mesoleucus, Pipilofuscus alhigula, Plectrophanes 

 nivalis, Leucosticte griseinucha, Goniaphea ccerulea, Cyanospiza ciris. 



