APl'E N DIX. 



255 



b. Sexes alike. 



a'. Tail rounded. Bill much longer than the head, 



decurved, wide at base. Rectriees narrow. 

 b'. Tail even. Bill as long as head, straight. 

 YV. Sexes unlike. Bill as long as, or slightly longer than the head. 



a. Tarsi clothed. 



a'. Bill straight, nostrils exposed. 



a". Tail square, feathers broad. 



b". Tail rounded or slightly forked. 

 b'. Bill decurved, nostrils hidden. 



b. Tarsi bare. 



a'. Bill straight, nostrils hidden. 

 WW. Bill longer than the head, rather broad and flat at base, and 

 terminating in a sharp point. Wings long, over two- 

 thirds the length of the tail. Tarsi clothed. Sexes 

 dissimilar. 



a. Nostrils exposed. 



. a'. Bill straight, tail even, slightly forked when .spread; 

 rectrices rather broad. Luminous metallic hues 

 confined to the top of the head. 



b'. Bill slightly decurved. Tail short, slightly forked, 

 feathers broad. 



c'. Bill straight and broad on top Wings reaching 

 to nearly the end of the tail, which is even. 



d'. Bill slightly decurved. Tail forked, feathers nar- 

 row and pointed. 



e'. Bill straight. Tail long, deeply forked. 



/' Size small. Bill straight. Tail short forked or 

 even. Plumage generally metallic. 



b. Nostrils hidden. 



a'. Bill straight, frontal feathers projecting on to the 

 culmen. Tail very short, even. Plumage lumi- 

 nous. 



108. PoLYTMUS, 213. 



109. Amazilia, 210. 



110. Basilinna, 226. 



111. eucei'uala, 227. 



112. TlMOLIA, 231. 



113. JULIAMYIA, 232. 



114. Bamophila, 23.3. 



115. Iaciie, 234. 



lie. IIylociiaris, 2S6. 



111. CYANornAiA, 237. 



118. Spoeadinus, 240. 



119. culoeostilbon, 242. 



120. Pa.nycuuiba, 247. 



