OP NEW OR LITTLE KNOWN BIRDS. 2S5 



tail, beyond, Ifg ; ditto, base Sfg ; tarsus ^. Notwithstanding 

 the remarkable difference in size between this delicate little 

 species and the robust S. sulphuratus, their colours are so 

 exactly alike, that I can only detect the trivial variation in the 

 crest, as mentioned above. 



13. Megastoma flaviceps. 



Above, olive brown ; beneath, fine yellow : chin, and 

 circle round the crown, white : crown and ears blackish, 

 with a concealed crest of fine yellow. 



Inhabits Northern Brazil. 



Total length 9 inches ; bill, gape 1-fg ; front Ij-^; wings 4/^ ; 

 tail, beyond, \\; base 4 ; tarsus ■^. This is, probably, the 

 Lanius pitanga of Linna^an authors. 



14. Megastoma Q'ujiceps. 



Colour resembling M. flaviceps ; but the concealed 

 crest is rufous, and the body beneath, orange yellow. 



Inhabits Southern Brazil. Mus. Nost. 



Total length S~ inches ; bill 1^ ; gape 1^ ; front 1^ ; wings 

 4^ ; tail, beyond, 2 ; base 3^ ; tarsus ^. 



15. Megastoma atriceps. 



Colour resembling WI. flaviceps ; but the crown is 

 entirely blackish. Bill, l~>- inch long. 



Inhabits Brazil. Mus. Nost. 



Bill equally wide, but much shorter than in the two preced- 

 ing. Total length 8 inches ; wings 4/y ; bill, gape 1 ^^^ ; front 1 ; 

 tail, base 3fg ; tarsus iA. I suspect this group to be analogous 

 to Psaris in the uniformity of the colours which pervade the 

 species. 



l6. Ptilogonys nitens. 



Glossy blue black (in the female grey) above and 

 beneath : head with a pointed crest : quills with a cen- 

 tral white band on their inner webs. 



Inhabits Mexico. Mus. Nost. 



Total length about 7f inches ; bill, front •j'jj ; wings 4^ ; 

 tail, beyond, 2 ; base 4 ; tarsus \^. The black colour of the 

 male is uniform and glossy throughout the whole plumage : 

 the feathers of the crest are very narrow and conspicuous : the 

 female is uniform dark grey, with the crest alone blackish. 



