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



scribed bird is unquestionably entitled to the same rank ; but 

 as I do not feel satisfied that Mr. GouUVs bird should be so 

 considered, I refrain from characterizing my specimen. Per- 

 haps if the attention of ornitholofi^ists generally be directed to 

 this matter, we may be able to learn if there is really existing 

 a group of pink-throated Petasophoroi living in the interior 

 of Columbia or Ecuador, of Avhich these examples have alone 

 reached Europe; for it has happened that specimens regarded 

 by naturalists as lusus naturee, from their unusual appearance, 

 have eventually proved to represent very distinct forms ; and, 

 mindful of this fact, I do not at present feel inclined to place 

 P. coruscans among the synonyms of P. anais, nor bestow a 

 name upon the other form, which future evidence may show 

 ought to have been left undescribed. Better " learn to labour 

 and to wait.^^ 



Petasophora serrirostris. 



Trochilus serynrostris, Vieill. Nouv. Diet. d^Hist. Nat. 

 vol. vii. p. 359 (1817). 



Petasophora serrirostris, Gould, Mon. Troch. vol. iv. pi. 223 ; 

 id. Intr. Troch. (8vo ed.) p. 124. sp. 248. 



Hub. Brazil. 



This, the longest-known species of this genus, represents it 

 in the south-eastern part of South America, It is distin- 

 guished from all the other species chiefly by its Avhite under 

 tail-coverts. It is very common in Brazil, and apparently 

 migrates between Bahia and Rio de Janeiro. 



Petasophora delphin^e. 



Ornis7nya delphince, Less. Rev. Zool. 1839, j). 44. 



Petasophora delphince, Gould, Mon. Troch. vol. iv. pi. 229 ; 

 id. Intr. Troch. (8vo ed.) p. 125. sp. 254. 



Hub. Central America, Trinidad, Guiana, Venezuela, Co- 

 lumbia, Ecuador, and Peru. 



This widely distributed species was first described by Lesson 

 {I. c.) . It is remarkable among the members of this genus 

 by having its metallic colouring restricted to the throat and 

 ear-coverts, the rest of the plumage being devoid of brilliancy. 



