LANGSDORFFS HUMMING-BIRD. 



Trochilus Langsdorffii, VIEILLOT. 

 PLATE X. 



Trochilus Langsdorffii, Temminck, Planches Colorizes, 66. 

 fig. 1. Le Langsdorff, Lesson, Histoire Naturelle des Oi- 

 seaux-mouches, pi. xxvi. Adult ; pi. xvi. Young. 



THIS beautiful species was discovered by M. 

 Langsdorff, Russian Consul at Rio de Janeiro, to 

 whom it was dedicated by the French ornithologists. 

 It will also serve to recall, says Lesson, the compa- 

 nion of Krusenstern, in his voyage round the world. 



It is most remarkable for the curious structure of 

 the tail, and presents almost as great an anomaly in 

 the form of the feathers, as the half-tailed Humming- 

 Bird does in the number of them. It forms a com- 

 plete and deep fork, but the feathers lengthen out 

 and narrow to a perfect point, the outer one being 

 almost three inches long. The upper parts are of a 

 dull golden green of a uniform tint. The fore part 

 of the breast and throat is covered with a patch of 

 the same colour, but having beautiful reflections in 

 different positions, and composed of the same scaly 

 feathers which almost always occupy this space, 



