GLAUCIS. - 7 



bar is very conspicuous, hut as they grow older tlie rectrices lose their pointed tips, 

 and become more and more rounded, and the black bar grows narrower, sometimes 

 becoming obsolete. 



2. ^Glaucis dorhni. 



Trochilus dorhnii, BorRC, Ann. Soc. Sci., I.yon (1852), J. 



Grypus spi'xi, Gould, P. Z. S. (18G0), p. oOi. — Id., Mon. Troch., pi. 2, vol. i. — Id., Intr. Mnri. 'IVoch. p. 35, ^. 



Glaucis dorhtu, Goild, .Mon. Troch., vol. i, pi. 1.— lu., Intr. Mon. Troch., octavo eil., p. 39, 5 ?. — Salv. and 

 Elliot, Ibis (1873), p. 27G.— Rkich., Aufz. dcr Colib., p. 15 (1853).— Id., Troch. Kiiiini., p. 12 (1855).— 

 MuLS., Hist. Nat. Ois. Mouch., torn, i, p. 44. — Cab. and IIei.n., Mus. Ueiu. Th., iii, [). 4 (note 2). — Bo.\., 

 Rev. and Mag. Zool. (1854), p. 249. 



Hab. Brazil. 



I place this species in the present genus, because the bill docs not appear to 

 have the peculiar hook, characteristic of Rhamj^>hodoii,, nor do the mandibles possess 

 more serration on their edges than is perceived in tlie majority of" humming-birds. 

 See our remarks in the Ibis, 1873, p. 276. This bird is easily distinguished by the 

 colouring of the tail ; it resembles the G. liirsuta, but has all the rectrices reddish- 

 bronze, the females tipped with white, most extensive on the outermost feather. 

 Total length, 4| in. Wing, 2.| in. Tail, 1| in. Culmen, \\ in. 



3. Glaucis antoniee. 



Trochilus antonice, Bourc. and Muls., Ann. Soc. Agric, Lyon (184C), p. 329. 



Lampornis antonice, Bon., Consp. Gen. Av., vol. i (1850), p. "2 



AphaiUochroa anionice, Reich., Aufz. dcr Colib., p. 15 (1853). — Id., Troch. Enuni., p. 12 (1855). 



Polytmus antonice, Gkav, Gen. Birds, vol. i, p. 108, sp. 37. 



Thrcneles anionice, Goild, Mon. Troch., vol. i, pi. 15. — Id., lutr. Troch., octavo ed., p. 40. — Salv. and Elliot, 



Ibis (1873), p. 278. 

 Dnophera antonice, Heine, Journ. fiir Ornith. (1863), p. 175. 

 Glaucis antonice, AIuls., Hist. Nat. Ois. Mouch., torn, i, p. 46. 



Hah. Cayenne. 



Throat black, sometimes a light band across the upper part of breast, entire rest 

 of plumage very dark greenish-bronze, in some specimens almost black. Central 

 rectrices shining dark green; lateral ones purplish-brown glossed with green. Bill 

 black. Total length, 4^ in. "VVing, 2f in. Tail, Ig in. Culmen, 1 in. 



4. Glaucis leucurus. 



Trochilus leucxirtis, Linn., Syst. Nat. (1766), vol. i, p. 190.— Gmel., Syst. Nat. (1788), vol. i, p. 487.— D'Okb, 



and Lafres, Syn. Av. ii, p. 32, sp. 29 (1838). 

 White-tailed Eumming-bird, Lath., Gen. Syn., vol. ii, p. 757.— Id., Gen. Hist. Birds, vol. ir, p. 308. 

 Polytmus leucurus. Gray, Gen. Birds, vol. i, p. 108 (1844-49). 



Glaucis leucurus, Bon., Consp. Gen. Av., p. 67 (1850).— Muls., Hist. Nat. Ois. Mouch., torn, i, p. 49. 

 Threnetes leucurus, Gould, Mon. Troch., vol. i, pi. 13.— Id., Intr. Troch., octavo ed., p. 40.— Bon., Rev. and 



Mag. Zool. (1854), p. 249.— Rekh., Aufz. dcr Colib., p. 15 (1853).— Id., Troch. Enum., p. 12 (1855).- 



Salv. and Elliot, Ibis (1873), p. 277.— Elliot, Ibis (1877), p. 142. 



Hah. Surinam. 



Upper surface and median rectrices shining green. Wings purple, lateral feathers 

 white, margined and stained more or less with dark brown, most extensive on the 



