Mr. J. Gould on new Species of Humming-Birds. 303 
rufous colouring of the rump and upper tail-coverts. It belongs to 
that section of the genus Phaéthornis to which Prince Bonaparte 
has given the subgeneric name of Pygmornis. 
_ AUGASMA SMARAGDINEUM, Gould. 
Crown of the head ani throat glittering greenish-blue, imper- 
ceptibly passing into the glittering green at the breast ; back of the 
neck and upper surface golden-green ; upper tail-coverts grass-green ; 
under tail-coverts green inclining to purple on some of the feathers ; 
thighs brown; tail bluish-black, the two outer feathers on each 
side slightly tipped with white ; bill black, with the exception of the 
basal half of the under mandible, which is flesh-colour. 
Total length 32 inches; bill 27; wing 2; tail 13. 
Hab. Brasil. * mp thee ; 
Remark.—This bird is about the size of Thalurania furcata ; it is 
therefore a rather large species ; it is also an elegantly formed bird. 
Those who are acquainted with the 7. chlorocephala of M. Bourcier 
will find in this a very near ally ; I have not the least doubt, how- 
ever, of its being quite distinct. The only examples I have seen are 
one in my own collection, and another in that of M. Verreaux of Paris. 
In M. Verreaux’s specimen the white tippings of the outer tail-feathers 
are nearly obsolete, while in mine they are conspicuous ; in my speci- 
men, also, the two middle tail-feathers are marked with green on their 
upper surface, while in M. Verreaux’s these feathers are uniform in 
colour throughout. My bird was kindly sent to me by T. Reeves, 
Esq., of Rio de Janeiro. 
EvcEePHALA CZRULEO-LAVATA, Gould. 
Crown of the head greenish-blue, not very brilliant, but having a 
few conspicuous small bright-blue feathers intermingled ; throat and 
chest bright greenish-blue, passing into purer green on the flanks ; 
back of the neck, and back, deep grass-green ; wings purplish brown ; 
upper tail-coverts bronzy-orange ; under tail-coverts bronzy purplish 
brown ; two middle tail-feathers deep purplish bronze; the next on 
each side is washed with bronze on its outer margin; the remain- 
ing feathers purplish-black ; thighs greyish-white ; the bill appears 
to have been reddish flesh-colour at the base of both mandibles (this 
colour also pervades nearly the whole of the under mandible); the 
remainder of the bill black. 
Total length 32 inches; bill £; wing 2] ; tail 13. 
Hab. St. Paulo in Southern Brazil. 
Remark.—I am indebted to T. Reeves, Esq., of Rio de Janeiro, for 
a fine specimen of this new bird, which differs so widely from every 
other known species, that I am unable to compare it with any one of 
them. It is a stout and rather large bird, with a well-proportioned 
bill and tail, the latter of which is considerably forked. 
_ Lam not quite satisfied that a place in the genus Eucephala is the 
stead position for this bird among the Trochilide, and I feel that 
might, without overstepping the bounds of propriety, have con- 
stituted it the type of a new genus. 
