1. PIPRITES. 



2$3 



Subfamily I. PIPPJN.E. 



Key to the Genera. 



A. Tail rather lengthened. 



a. Frontal feathers recumbent. 



a'. Tail squared or slightly rounded. 

 a". Without a nuchal crest. 



a'". Bill shorter 1. Piprites, p. 283. 



!/'". Bill longer : 



I mesorhinium compressed 2. Chloropipo, p. 286. 

 | mesorhinium rounded . . 3. Xenopipo, p. 287. 



/>". With a nuchal crest 4. Ceratopipra, p. 288. 



V. Outer tail-feathers much elongated 5. Cirrhopipra, p. 289 



b. Frontal feathers erect. 



c'. Bill short, widened at the base ; 

 front crested. 



| Tarsi shorter ; scutes divided. 6. Metopia, p. 290. 

 ) Tarsi longer; scutes united. 7. Masius, p. 290. 

 d' . Bill long, much constricted ; front 



not crested 8. Metopothrex, p. 292. 



B. Tail short. 



c. Wings of males normal. 



J Bill wider 9. Pipra, p. 292. 



| Bill more compressed 10. Neopipo, p. 303. 



d. Wings of males modified. 



e'. Stems of secondaries thickened . . 11. Machjeropterus, p. 303. 

 /'. Stems of primaries thickened. 



c". Primaries straight 12. Chiroxiphia, p. 307. 



d' 1 . Primaries curved. 



1 Middle tail-feathers length- 



< ened 13. Helicura, p. 311. 



| Tail squared 14. ChiromaCHJeris, p. 312. 



1. PIPRITES. 



Tiprites, Cab. Ti iegm. Arch. xiii. pt. i. p. 234 (1847). ... P. pileatus. 

 Hemipipo, Cab. ibid. (1847) P. chloris. 



The short, strong, Parine bill, strong feet, and less united toes 

 sufficiently distinguish this little group of five species, which 

 extends from Costa Eica to Brazil. The first species shows these 

 characters to excess, the other four (Jlctnipipo) are not so divergent 

 in structure. 



Key to the Species. 



A. Bill shorter; back red : sexes distinct (Piprites). 1. pileatus, p. 284. 



B. Bill longer ; back green : sexes similar ( Hemi- 



pipo). 



a. Cap olivaceous ; front yellowish. 

 a'. Abdomen yellowish olive. 



j Larger ; nape olivaceous 2. chloris, p. 284. 



I Smaller ; nape greyish •'!. tschudu, p. 28 I. 



b'. Abdomen cinereous 4. ch/orimi, p. i's"). 



b. Cap and front cinereous 5. oriseiceps, p. 285. 



