100 Ridgway — Diagnoses of New Genera of American Birds. 



tinctly outlined, cere naked behind nostrils, and inner webs of rectrices 

 mostly red. 



(Qtjkt6s, sharp; KipKos, tail.) 



Species: Thectocercus acuticaudatus (Vieillot). 



Psilopsiagon gen. nov. 



Type, Trichoglossus aurifrons Wagler. 



Differing from Bolborhynchus Bonaparte in having the feathers of the 

 cheeks short (normal), not covering sides of mandible; tail shorter than 

 wing; bill relatively longer and narrower, the length of cnlmen nearly 

 equal to that of tarsus, and much greater than width of mandible at base, 

 the tip of maxilla (unguis) narrow, obtusely pointed, no gray on cheeks, 

 throat, etc., nor brown on pileum, the latter green, the primaries bine. 



(^iX6s, naked; cnayuiv, jaw bone.) 



Species: Psilopsiagon aurifrons ( Wagler). 



Grammopsittaca gen. nov. 



Type, Psittacula lineola Cassin. 



Nearest Psilopsiagon but differing from both that genus and Bolbo- 

 rhynchus in having the cere much less tumid, broadly subfusiform (by 

 encroachment of frontal feathering on posterior portion), tail not more 

 than two-thirds (sometimes but little more than half) as long as wing, 

 graduated for much less than half its length; tarsus much shorter than 

 outer front toe without claw; and plumage without either gray or yellow 

 (green, sometimes barred or spotted with black ). 



(T pafi/j.7] , line; ^Ittolkti, a parrot. ) 



Species: (1) Grammopsittaca lineola (Cassin); (2) Grammopsittaca 

 andicola (Finsch). 



Nannopsittaca gen. nov. 



Type, Brotogerys panychlorus Salvin and Godman. 



Differing from Urochroma Bonaparte in having the bill much more 

 slender, the depth of maxilla at base equal to much less than half the 

 length (chord) of cnlmen, the latter less strongly declined ; tarsus as long 

 as outer front toe without claw; tenth (outermost) primary with inner 

 web emarginated near tip; orbital region mostly feathered; rectrices 

 wholly green, and si/.e smaller (wing less than 95 mm. ). 



The type species of this genus has hitherto been referred either to Bro- 

 togerys or Bolborhynchus, but evidently it is far more closely allied to 

 Urochroma, from which, however, it is very distinct generically. 



CN&wos, dwarf; flTrdKij, a parrot. ) 



Species: Nannopsittaca panychlora (Salvin and Godman). 



liapalopsittaca gen. nov. 



Type, Psittacus amazoninus Des Murs. 



Differing from Pionopsitta Bonaparte (type and only species Psittacus 



