Precisely the same remark may be made with respect to his new genus R a m ph o x a n t h u s for Aulaco-
ramphus prasinus and A . albmtta, inasmuch as they do not in my opinion offer sufficient generic differences
to warrant their separation from the other birds with which I have associated them.
The birds comprising his genus P ip e r iv o r u s I consider to belong to three distinct genera. The first
.piperivora— is a t r u e Selenidera— t h e f o u r th , Bailloni— a n Andigena; t h e s e c o n d a n d t h i r d— viridis a n d
inscriptus m ig h t p e r h a p s b e s e p a r a t e d ; b u t in t h a t c a s e viridis w o u ld s t a n d a lo n e in o n e g e n u s a n d
inscriptits w i th Humboldti in a n o th e r , f o r w h i c h t h e t e rm G r am m a r h y n c h u s m i g h t b e a n a p p r o p r i a t e
a p p e l la t io n .
1 ST OF P L A T E S .
Ramphastos Inca. '
■— -------------brevicarinatus.
---------------- ambiguus. ^
---------------- citreolæmus. v
Pteroglossus Wiedi. —
---------------- erythropygius. *-
------— poecilosternus. —
---------------- Azaræ.
----------------- flavirostris. __
•— Mariæ. ^
---------------- Sturmi. _
Andigena nigrirostris. ^
------------- cucullatus. -
-------------■ laminirostris.
Selenidera Gouldi.
Aulacoramphus castaneorhynchus.
■-------------------- albivitta. -
-------------------- atrogularis.
--------------------• cæruleicinctus. ^
-------------------- cæruleogularis.
** The proper situation o f th e above Plates will be found in th e lists o f the
species o f th e respective genera, given in the Introduction.