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. Gould^s bird should be so 
considered, I refrain from characterizing my specimen. Per¬ 
haps if the attention of ornithologists generally be directed to 
this matter, we may be able to learn if there is really existing 
a group of pink-throated Petasophorae living in the interior 
of Columbia or Ecuador, of which these examples have alone 
reached Europe; for it has happened that specimens regarded 
by naturalists as lusus naturae , 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 serrirostris, Vieill. Nouv. Diet. d J 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. 
Hab. 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 white under 
tail-coverts. It is very common in Brazil, and apparently 
migrates between Bahia and Rio de Janeiro. 
-f Petasophora delphin^e. 
Ornismya delphinae, Less. Rev. Zool. 1839, p. 44. 
Petasophora delphinae, Gould, Mon. Troch. vol. iv.pl. 229; 
id. Intr. Troch. (8vo ed.) p. 125. sp. 254. 
Hab. Central America, Trinidad, Guiana, Venezuela, Co¬ 
lumbia, Ecuador, and Peru. 
This widely distributed species was first described by Lesson 
(/. 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, 
