95 
LANGSDOEFF’S HUMMINQ-BIED. 
Trochilus Langsdorffii, Vieillot. 
PlATE X. 
Trochilus Langsdorffii, Temminclc, Planches Coloriees, 66. 
fig. 1. — Le Langsdorff, Lesson, Histoire Naturelle des Oi- 
seaux-mouches, pi. xxvi. Adult pi. xvi. Yo^ng. 
This beautiful species was discovered by M. 
LaiigsdoifF, 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 Krusenstem, 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. 
