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ORNITHOLOGY. 
VOL. V1. JULY, 18s: No. 3 
DESCRIPTIONS OF SUPPOSED NEW SPECIES OF 
HUMMINGBIRDS BELONGING TO THE GEN- 
ERA AMAZILIA AND ELRIOCNEMIS* 
BY D. G. ELLIOT, F.R.S.E. 
A sMALL lot of Hummingbirds, containing four specimens, 
having been received at the American Museum of Natural His- 
tory, Professor Allen placed them in my hands for determination, 
and description if any proved new. The two now described 
appear very distinct from any species of the Trochilida, of which 
I have any knowledge, and the remaining two are interesting for 
the reason that one is the rare Petasophora coruscans, of which 
only three or four specimens are known, and the other exhibits a 
rather unusual case of albinism. They were stated to have come 
from Bogota, but their exact habitat is doubtful. 
Amazilia lawrencei, sp. nov. 
Crown of head, neck, back, upper wing-coverts, and upper tail-coverts, 
dull bronzy green. Wings purple, base of primaries and secondaries black- 
ish. Throat, sides of neck, and breast glittering grass-green; lower part 
of flanks and abdomen very dark chestnut brown; under tail-coverts cin- 
namon. Tail bright chestnut, tips and edges of both webs bluish black, 
most extensive on lateral feathers, reaching on outer webs nearly to their 
base. Maxilla black, mandible black with a slight indication of flesh- 
color at the base. Feet black. Length of wing, 2,4 in.; tail, 14; bill, 
[* An author's edition of 100 copies of this paper was published April 9, 1889. 
—ED.] 
