134 GENEBA AND SPECIES. 



Trockilus anthophilus, Bourc. Locality: Co- 

 lumbia. G-ould's cabinet. 



Trochilus Swainsoni, described and figured as 

 Swainson's Humming-bird in the Naturalist's 

 Library, Ornith. vol. ii. p. 132, pi. 30. Locality: 

 Brazil. 



Lesson has described two distinct species of 

 Humming-bird under the title of Trochilus 

 Swainsoni, of which one appears to belong to the 

 present genus ; the other to the genus Cynan- 

 thus. 



The Phaetornis Swainsoni, is abnormal in its 

 form, and will probably be hereafter removed 

 to another genus. 



The Prince of Canmo places it in this group, 

 with a mark of interrogation. 



The other Trochilus Swainsoni is described in 

 the Naturalist's Library, vol. ii. p. 88. 



Trochilus Davidianus, described in the Natu- 

 ralist's Library, Ornith. vol. ii. p. 127. 



This species is closely allied to the preceding. 

 The birds of this genus are very beautiful, and 

 are swift and active on the wing. Many of the 

 species are of minute size : some, indeed, as the 

 Tr. Longuemareus, rufigaster, and Davidianus, 

 scarcely exceed three inches in total length. 

 The Trochilus superciliosus is the largest. 



"We now pass to the next genus in the arrange- 

 ment of the Prince of Canino. 



Genus LAFHESNAYA, Bonaparte. 



The typical example of this genus is the 



