52 Mr. D. G. Elliot on the Trochilidse. 



for examination and comparison, the type of the present 

 species. It is a small bird, and, as stated by its describer, 

 has a peculiarly coloured tail, quite different from any other 

 species with which I am acquainted, although most nearly 

 resembling, as I have already stated, the bird I have pro- 

 visionally called Thaumatias nitidicauda. I believe the type 

 is unique. 



17. Thaumatias lucijE. 



Thaumatias lucice, Lawr. Proc. Acad. Nat. Sci. Phil. 1867, 

 p. 233. 



Hab. Honduras. 



I do not know this species autoptically. It was described 

 by Mr. Lawrence (/. c.) from a single specimen contained in 

 a collection of birds formed in various parts of Central 

 America ; and the type, which is in the National Museum at 

 Washington, remains, I believe, unique. Mr. Lawrence says 

 that in size and colour of body it is much like T. linnm {T. 

 tobaci) ', but the tail is quite different, and closely resembles 

 in the colouring of its under surface that of T. chionopectus. 



18. Thaumatias nitidifrons. 



Thaumatias nitidifrons, Gould, P. Z. S. 1860, p. 308; id. 

 Mon. Troch. vol. v. pi. 297 ; id. Intr. Mon. Troch. 8vo ed. 

 p. 152. 



Hab. Venezuela? 



This is a very distinct and rare species. Besides Mr. 

 Gould's type I have seen but one other, now in the collection 

 of Count Turati, at Milan. In its glittering crown and breast 

 it is conspicuously different from all the members of this genus, 

 being the only one that has both these parts clothed in metallic 

 colours. Its habitat is not yet known. 



19. Thaumatias c^ruleiceps. 



Thaumatias cceruleiceps, Gould, P. Z. S. 1860, p. 307; id. 

 Intr. Mon. Troch. 8vo ed. p. 152. 



Hab. Columbia. 



I am indebted to Mr. Gould for the opportunity of ex- 

 amining this bird, the type of which is now before me, having 



