APPENDIX. 



25:3 



b. Bill shorter than the head, slightly dccurved at extreme 

 tip, rectrices narrow, longest curving slightly outwards, 

 median pair very short. 

 EE. Feathers of the neck lengthened, forming ruffs, and projecting 

 outwards and upwards. Bill straight, short, weak. Sexes 

 dissimilar. 

 FF. Tail deeply forked, median rectrices very short, outermost one 

 bare of web near the tip. Bill about as long as the 

 head, straight. 



a. No spatula at tip of external rectrix. All tail feathers 



terminating in sharp points. 



b. Outermost rectrix longest, and terminating in a moderate 



spatula. 

 a'. Second and third outer rectrices nearly equal, and 



about three-fourths the length of external one, 



pointed at tips. 

 b'. Second outer rectrix about one-third the length of 



external one, and one-third longer than the next 



inner one. Tips rounded. 

 c'. Outer tail feathers entirely bare of webs, spatules 



very large. Wings diminutive. 

 GG. Tail very long, deeply forked. 



a. Bill about as long as the head, straight. 



a'. Rectrices narrow, outermost one greatly exceeding 



the others in length ; the tips alone slightly 



metallic. Throat metallic. 

 b'. Rectrices broad, external one nearly square at tip, 



remainder slightly pointed, all metallic at the 



tip, each one from the median pair one-third 



shorter than the next outer one. Throat metallic. 

 c'. Rectrices moderately broad, even ; external one 



two-thirds longer than the one next to it; the 



exposed surface of all highly metallic. Top of 



head and throat luminous. 

 d'. Bill longer than the head, arched. Rectrices broad, 



rounded at tip, external one, a third longer than 



the next one; exposed portions of all extremely 



luminous. Throat metallic. 

 HH. Feathers of throat elongated into a pendent tuft. Tail forked. 



a. Head crested. 



a'. Bill short, straight, feeble. Tarsi naked. 



b. Head not crested. Elongated throat feathers metallic 



at tips. 

 a'. Bill longer than the head, stout, slightly decurved. 

 Tarsi clothed. 



c. Bill shorter than the head, straight, rather stout. 

 II. Bill turned upwards at the tip. 



a. Bill shorter than the head. Tail slightly forked. Rec- 



trices not luminous. 



b. Bill longer than the head. Tail rounded Rectrices 



exceedingly luminous. 

 JJ. Rectrices broad, highly metallic. Sexes unlike. 



o. Bill straight, shorter than the head. Tarsi bare. 



C9. Calliphlox, 130. 



70. LornoRNis, 131. 



71. GouLDiA, 137. 



72. DiscuRA, 140. 



73. Steganura, 141. 



74. Loddigesia, 144. 



75. Lesbia, 145. 

 70. Zodalia, 149. 



77. Cynanthus, 150. 



78. Sappho, 153. 



79. OxYPOGON, 155. 



80. Oreonympha, 157. 



81. Rhampho.micron, 158. 



83. AVOCETTINUS, IGl. 



83. AVOCETTULA, 162. 



84. Metallura, lfi3. 



