ATPENDIX. 



251 



b. Feathers of foreliead only partly covering tlie nostrils. 



a'. Tail long, broad, and forked. Wings very long, 

 pointed. Is'o metallic Lues ou plumage. Sexes 

 alike. 

 0. Bill longer than the body and Lead, inclining upwards at tip. 



Sexes unlike. 

 P. Bill very long, straight, slender. 



a. Sexes dissimilar. 



a'. Tail long, deeply forked. Foreliead and crown bril- 

 liantly metallic. Tarsi partially clulLed. 



b'. Tail slightly forked. Plumage generally metallic. 

 Tarsi feathered. 



b. Sexes similar. 



a'. Tail long, broad, slightly forked. Metallic hues in 

 the majority of tiie s])ecies, mainly on the Lead, 

 throat, and rump. Tarsi Ijare. 



b'. Tail much rounded, rectrices broad. Metallic hues 

 restricted to forehead. 

 Q. Bill lengthened. Crown and throat metallic. Sexes dissimilar. 



a. Gorget not elongated. 



a'. Nostrils exposed, maxilla broad, denuded at base. 

 Tail rounded. Bill straight. 



b. Gorget elongated. 



a'. Tail forked, feathers rounded at tip. Bill straight. 

 b'. Tail deeply forked, rectrices narrow and pointed. 

 Bill slightly curved. 

 R. Bill short, about as long as the head, straight. Spot on forehead 

 and throat metallic. Sexes unlike. 



a. Tail long and forked. No white on breast. 



b. Tail broad and rounded. White band on breast. 



S. Bill straight, slender, longer than the head. Tail slightly forked. 

 Throat metallic. Sexes unlike. 



T. Bill shorter than Lead, nostrils covered. Tail rounded. Sexes 

 very different, botb with metallic hues, more ou the female 

 than male. Size large. 



TJ. Rectrices on either side of the median pair narrow and elongated 

 far beyond the rest. Bill stout, decurved, longer than the 

 head. Metallic hues common to both sexes, but their plumage 

 dissimilar. 



V. Lateral rectrix, next the outermost one on either side, three times 

 the length of the rest. Bill longer than the head, wide at base. 

 Tail forked. Head crested. Sexes unlike. Tail of female 

 moderately long, rounded, the lateral rectrices pointed. 

 W. Bill longer tlian the head, stout, slightly decurved. Nostrils 

 covered. Tail very long, deeply forked, the external rectrix 

 twice the length of the one next to it, very broad, and narrow- 

 ing to a point. Plumage generally metallic. Size large. 

 Sexes ■ ? 



X. Bill moderate, slightly decurved. Tail slightly forked. Tarsi 

 clothed, metallic hues on crown or throat, sometimes on both. 

 Sexes unlike. 



Y. Size minute. Bill short, straight, delicate. Metallic hues wanting. 



a. Tail short, slightly fiirked. Sexes similar. 



b. Tail short, square, slightly rounded. Sexes unlike. Nos- 



trils hidden. Crown white. 



33. Pat.\gona, CY. 



34. l)0Cl.M.\f.TES, 08. 



35. DlPHLOG^NA, 09. 



30. Heliantuea, to. 



37. boukcieria, 74. 



38. Hemistephania, 80. 



39. Floricola, 82. 



40. Lei'idolary.nx, 84. 



41. Heliomaster, 80. 



42. HEi.ioTRYPnA, 86. 

 43 Helianqelus, 89. 



44. Urosticte, 91. 



45. ElSTEPHANluS, 92. 



40. Topaz a, 94. 



47. AiTnuRUs, 90. 



48. Hylonympha, 97. 



49. Thalcrania, 98. 



50. Mellisuoa, 103. 



51. Microchera, 104. 



