210 ELLioT oz Supposed New Species of Hummingbirds. {July 
{3- Total length of skin is 3,3, in., but as it has been very much short- 
ened in making it up, it is probable the real length would be nearer four 
inches. 
flabitat. Bogota? 
As will be seen from the above description, this bird is not 
closely related to any of the described species of Amazzdlia. 
From A. yucatanenszs and its allies it can at once be distinguished 
by its black bill, differently colored abdomen and under tail- 
coverts. In fact, from all the species with the throat and breast 
metallic green, to which section the A. /awrencez belongs, it has 
well-marked and easily defined characters. I have named it after 
my life-long friend, Mr. George N. Lawrence, an excellent Tro- 
chilidist and well known by his numerous ornithological writings. 
Eriocnemis incultus, sp. nov. 
Crown of head, upper parts of body and upper tail-coverts bluish black, 
the feathers on rump and upper tail-coverts margined with rufous. 
Throat and centre of breast dull lead-color, feathers of throat edged with 
white. Wings deep purple. Sides of breast bluish black. Flanks black 
with a deep brownish reflection. Abdomen white spotted with brown. 
Tail steel-blue, nearly square at tip. Feathers of under tail-coverts gray 
in centre, glossed with green, and edged with white. Thigh tufts white. 
Bill black, base of mandible flesh color; feet black. Length of wing, 
2% in; tail, 1°35 bill, ;% in. 
flabitat. Bogota? 
The specimen is not in fully adult plumage as is shown in the 
rufous edging of the feathers of the rump and upper tail-coverts, 
as these in the fully matured bird would undoubtedly be a uniform 
bluish black like the rest of the upper parts. The only species 
this bird can be compared with is &. dyselzuws from Ecuador, but 
besides being considerably smaller, 4. zzcaltus differs in its lead- 
colored throat, square tail, and lack of the purple hues seen in 
its large relative, and very differently colored under tail-coverts. 
The other two specimens were a very good example of Pefa- 
sophora coruscans, with the red on throat and breast rather 
darker and slightly more extended than ‘the specimen in my 
collection in the Museum, caused probably by individual varia- 
tion, and a male example of Chrysuronia enone with the under 
parts pure white, due probably to albinism. 
