SPECIES OF HUMMING BIRDS. 
TROCHILUS (■• ?) AURICEPS. 
Forehead and crown of the head of a glitteiing metallic gol ® 
hue; upper surface and wing-coverts golden green; throat and the 
whole of the under surface lustrous metallic green ; wings purp is 1 - 
brown ; tail, which is deeply forked and longer than body, 
purplish-black, all but the outer feather on each side obliquely 
tipped with greyish-green; bill reddish at the base, and black for 
the remainder of its length. 
Total length, 3| inches ; bill, f ; wing, If ; tail, If. 
Habitat. Mexico. 
Remark— Allied to T. caniveti, but differs from that species in 
its long and deeply forked tail, the feathers of which aie extienie y 
narrow. 
From the Collection of Don Floresi d Areais. 
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