GOULDIA. 137 



Bellatrix chalybeus, Bon., Rev. and Mag. Zool. (1854), p. 297. 



Lophornis festivus, Burm., Th. Bras., vol. ii, p. 354, sp. 2 (185C). 



Polemislria chalybea. Cab. and IIein., Mus. Uein. {18G0) Tb., iii, p. 63.— Gould, lutr. Troch., octavo cd., p. 85 



(1861). 

 Polemislria vieilloti, Muls., Hist. Nat. Ois. Mouch., vol. iii, p. 231 (1876). 



Hab. Brazil. 



31ale. Forehead, line beneath the eye, and ear coverts metallic grass-green. 

 Back, wing coverts, and back of head bronzy-green. Rump dark purple, crossed 

 by a narrow white band. Throat and lengthened feathers on the sides dark glossy 

 green, not metallic, the latter tipped with white. Breast grayish-white ; abdomen 

 and flanks dark brown with bronze reflections. A line of wliite across the vent. 

 Upper tail coverts pale gray tipped and margined with bronzy-green. Tail bronzy- 

 brown tipped with white. Wings dark purplish-brown. Bill black. Total length, 

 3g in. Wing, If in. Tail, 1| in. Culnien, f"-^ in. 



Female. Top of head brown, upper surface of body greenish-bronze ; beneath 

 grayish-white. Throat streaked with brown. Tail bronzy-green at base, changing 

 into dark bronzy-brown, and tipped with buff. Rump, bill, and wings like the male. 



We now reach a group of birds allied, in many ways to those of the genus 

 Lophornis, yet differing greatly in their singular tails, which are composed of 

 lengthened attenuated feathers, the three outermost ones on either side being the 

 longest, although very unequal, and the four median ones so short as to be hardly 

 visible. The species first given is perhaps possessed of the most spine-like rectrices, 

 closely followed, however, by the next; but when the G. hvtiiiai is reached we find 

 it to be almost the counterpart of Discura lonjicauda, the only species of the fol- 

 lowing genus, but without the spatules at the end of the external rectrices. All 

 the species of Gouldia are small but of a graceful shape. I have kept the G. ^mpe- 

 lairi in the same genus as the rest, not considering that the possession of a crest is 

 of sufficient importance to give the species a distinct generic rank. 



Genus LXXL— GOULDIA. 



Type. 



Gould{a,'Boti.. Compt. Rend., p. 381 (1850). T. langsdorffi, Vieill. 



Popelairia, Reich., Aiifz. der Colib., p. 12 (1853). T. popelairi, DuBus. 



Oouldomyia, Bon., Rev. and Mag. Zool. (1854), p. 257. T. lanyxdorffi, Vieill. 



Prymnacantha, Cab. and Hein., Mus. IIein. Th., iii (1860), p. 64. T. popelairci, DuBus. 



Trtcholopha , Heine, Journ. fur Ornitli. (1863), p. 209. T. popelaireif, DuBus. 



Mytinia, Muls., Catal. Ois. Mouch. (1875), p. 28. T. lo'titicc, Bourc. 



Mythinia, Muls., Hist. Nat. Ois. Mouch., vol. iii (1876), pp. 235, 245. T. Icctitiw, Bourc. 



18 Ootober, 1878. 



