Mr. D. G. Elliot on the Trochilidae. 
53 
been kindly lent to me by its describer. It represents, in 
my opinion, a very distinct as well as beautiful species of tbis 
genus, resembling T. milleri in its upper parts, but, on account 
of having the throat and breast green, it cannot be even placed 
in the same group with that bird. In its rectrices it also ex¬ 
hibits differences of coloration not seen in any other species, 
the entire tail being of a light bronze-green, darkest on the 
median pair of rectrices, graduating to a pale green at the 
tips, and without the subterminal brown bar observed in most 
of the species with light tails. The bill is long and slender; 
maxilla black, mandible flesh-colour, tip brownish black. I 
believe the type is unique, although it is now a long time 
since it was described, and the acquisition of other specimens 
is much to be desired. 
20. Thaumatias neglectus. 
Thaumatias neglectus^ Elliot, Ibis, 1877, p. 140. 
Hab. Yungas and Moxos, Bolivia. 
This species, lately described by me in this Journal, together 
with the following one, constitute the third section of this 
genus, with the throat and upper part of breast blue. 
It was discovered by D^Orbigny, and the types, which are 
unique, are in the Paris Museum. When perfect specimens 
are obtained it will doubtless prove to be one of the most 
beautiful members of the genus to which it belongs. 
21. Thaumatias bartletti. 
Thaumatias bartletti, Gould; Sclat. & Salv. P. Z. S. 1866, 
p. 194. 
Hab. Peru. 
This fine species was obtained by Mr. Bartlett on the Upper 
Ucayali, in Peru. It is remarkable for having the throat and 
breast a violet-blue, instead of green. The few specimens 
brought by its discoverer are the only ones, so far as I am 
aware, that have ever reached Europe; and in collections this 
bird is very rare and in many cases a desideratum. 
