260 



/". Tail more even, but more or les8 

 in-egularly formed, the median rec- 

 trices, however, not abnormally short. 

 j'" . Bill rather long and deeurved ; [p. 390. 



lateral throat-feathers elongated . . 112. Calothorax, 

 k'" . Bill shorter and straighter. 



n^. Median rectrices bluntlj' pointed. 

 n'. Either the outermost primary 



or the outermost rectrices re- [p. 391. 



diiced to a filiform end 113. Selasphorus, 



0°. Neither the outermost primary 

 nor the outermost rectrices 



reduced to a filiform end .... 114. Trocuilus, p. 398. 

 0*. Median rectrices normal, not 

 pointed, lateral narrow and 



curved inwards 115. Calypte, p. 403. 



/)''. Two outermost rectrices on 



either side filiform 116. Acestrura, p. 106. 



y" . Tail nearly normal (rounded or 

 forked). 

 I'", Tail slightly forked, lateral feathers 

 of the throat not elongated. 

 q^. Throat plain, not glittering .... 117. Mellisuga, p. 409. 



r^. Throat glittering ruby-red 118. Catharma, p. 410. 



m" . Tail rounded, tipped with white ; 



lateral throat-feathers elongated.. 119. Atthis, p. 411. 

 n" . Tail slightly forked ; lateral throat- 

 feathers elongated ; central throat- 

 feathers white, with a small 



terminal ruby-red spot 120. Stellula, p. 413. 



h" . Tail abnormal, the median rectrices 

 very short, the lateral shorter than 

 the interniedian. 

 o'". Lateral rectrices short and very 



acute, half the length of the next [p. 414. 



pair, submedian short 121. CH.iETOCERCUS, 



p'". All but the short median pair of 

 rectrices subequal, each pair em'ved 



slightly inwards 122. Myrtis, p. 416. 



q". Submedian rectrices very long, at 



least four times as long as the [p. 418. 



outermost pair 123. Thaumastura, 



d' . Tail rounded or forked, not cuneate, 

 sometimes with a terminal spatule ; 

 rump with a transverse whitish band ; 

 neck sometimes with elongated lateral 

 plumes ; head sometimes crested. 

 i" . Tail rounded or slightly forked, lateral 



cervical plumes long 124. Lophornis, p. 419. 



j". Tail long and deeply forked, the rec- 

 trices very narrow and pointed, but 

 no terminal spatule, median pair very [p. 428. 



short 125. Prymnacantha, 



li' . Tail long and forked, the lateral pair 



of rectrices ending with a spatule . . 126. Discura, p. 431. 

 e . Tail cuneate, the rectrices gradually 

 narrowed to a blunt point, the median 

 and submedian pairs equal ; head with 

 long glittering superciliary tufts 127. Heliactin, p. 432. 



