154 Genera of Humming Birds. 



Thaumatias norrisii, Elliott, Ibis., 1878, p. 44. 



Thaumatia^ lerdi, De Oca, la Naturaleza, 1874, t. iii, p. 24. 



Norris's Emerald. 



Le Leucodore de Norris, Muls., Hist. Nat. Ois. Mou., 1874, 

 t. I, p. 310. 



Habitat. — Mexico. 



Male. — -Upper parts golden-green. Throat and sides of neck 

 metallic golden-green. Breast white. Abdomen and flanks 

 pale rufous. Uppertail-coverts light grayish-green. Under- 

 tail-coverts grayish-white. Wings pale green. Tail shining 

 grayish-green. Feet flesh colour. Bill flesh colour, black at 

 the point. 



Wing, 55 mill. Tail, 35. Bill, 18. 



" Bourcier, P.Z.S., 1847, p. 47." 



221. Agvrtria brevirostris, Less., Ois. Mou., 1829, p.p. 



35-211- 

 Basil inn a brevirostris, Less., Ind. Gen., and Syn., Gen. 

 Troch., 1 83 1, p. 26. 



Polyt)iins brevirostris, Gray, Gen. Birds, vol. i., p. 108. 



Thaumatias brevirostris, Bon., Consp. Gen. Av., 1850, 

 vol. i., p. 78. 



Agvrtria brevirostris, Reich., Aufz. der Col., 1853, P- 10. 



Short-billed Emerald, Gould, Mon. Troch., vol. v., p. 298. 



Le Thaumatias brevirostre, Muls., Hist. Nat. Ois. Mou., 

 1874, t. i., p. 242. 



Habitat. — Brazil. 



Male. — Upperside shining bronzy-green. Median rectrices 

 shining olive-green, lateral olive-green, with a subterminal 

 black bar near the tips, which are grayish-bronze. Sides of 

 neck and breast metallic-green. Throat, centre of breast, 

 and abdomen white. Flanks bronze-green. Undertail-coverts 

 gray, margined with white. Wing purple-brown. Maxilla 

 black. Mandible flesh colour, with black tip. 



Total length, 2|^in. Wing, 2. Tail, i|^. Culmen, f. 



Female. — Like the male, less brightly coloured on sides of 

 neck and breast. Lateral rectrices slightly tipped with gray. 



Abundant in Brazil. 



