152 GENERA AND SPECIES. 



Total length, 4 inches ; bill, 1 ; tail, 1J. Loca- 

 lity : Venezuela. In Gould's cabinet. 



The Prince of Canino refers two closely allied 

 species, viz. Trochilus Bu/"oni, Less, see Nat. Lib. 

 Ornith. vol. ii. p. 98, pi. 19, and the Trochilus 

 cceruleogaster, Gould, to this genus, with this 

 expression, " Palde abnormes, mx hujus generis" 

 thereby intimating a provisional allocation only. 

 He farther observes, that the Tr. cyanopectus, 

 Gould, and the Tr. aurescens, Gould, are both 

 aberrant forms, and he is quite correct in this 

 opinion, which is that also of Mr. Gould. 



In the Proceeds. Zool. Soc. 184*7, Mr. Gould 

 thus describes the Tr. cceruleogaster* 



Trochilus (Glaucis?) cceruleogaster. Crown 

 of the head and back of the neck, dull bronzy 

 green ; back green, passing into a bronzy green 

 on the rump and upper tail-coverts ; chin and 

 sides of the neck green, gradually passing into 

 the beautiful blue of the throat and abdomen ; 

 under tail-coverts largely developed and of a 

 pure white ; tail black, with steel blue reflec- 

 tions ; wings purplish brown ; bill black ; feet 

 brown. Total length, 4f inches ; bill, 1 5 

 tail, 2. 



This species is similar in every respect to Tr. 

 Bu/"oni, excepting that the throat and abdomen 

 are of a beautiful blue, instead of being green. 

 The Tr. Bujfoni is a native of Brazil, but the 

 locality of the present species is not determined. 

 In Gould's cabinet. 



