Mr. D. G. Elliot on the TrochilidEe. 151 



It may be as Avell here to point out what appears to be the 

 geographical distribution of the above acknowledged species. 

 Mexico seems to be the most northern point in which any 

 species of the two genera containing the green Humming- 

 birds is found. Here we meet with C. auriceps, the exact 

 locality of which is not known, and C. caniveti. The last is 

 common in the neighbourhood of Oaxaca and Jalapa, and ex- 

 tends its range southwards through Guatemala to Costa Rica, 

 In Veragua the last-named species is replaced by C. angus- 

 tipennis, which is common in Panama, Columbia, and Ecuador, 

 and, under different names, is the species commonly received 

 from those countries. The island of Trinidad supplies the 

 small bird named atala by Lesson, distinguished from pra- 

 sinus, Lesson, in having a tail slightly scalloped, but not 

 forked, in contradistinction to the almost square tail oi pra- 

 sinus. This last-named species appears to be distributed 

 throughout Venezuela and the western portion of the Amazo- 

 nian region into Peru, from which country Hauxwell has sent 

 a number of specimens from the vicinity of Pebas, it having 

 also been obtained in other localities by different collectors. 

 One specimen of C. hceberlini is before me as coming from 

 Panama, collected by McLeannan. This is the furthest point 

 north and west that it appears to go : and I am somewhat in- 

 clined to look upon it as a straggler there ; for the habitat of 

 the species appears to be Venezuela and Columbia, in the 

 neighbourhood of Cartagena; it is also frequently sent in 

 collections from Bogota. Bolivia possesses C. splendidus, 

 which extends in a southerly direction into Chili east of 

 the Andes, where it has been obtained at Mendoza, thence 

 across the continent to Buenos Ayres, where it is not uncom- 

 mon. Northward of this, throughout South-eastern Brazil, 

 as our present knowledge enables us to determine, is the range 

 of the allied species C. pucherani. It will thus be seen that, 

 with the exception of those portions of Ecuador, Peru, Bolivia, 

 and Chili which lie west of the Andes, and also Patagonia, 

 from none of which localities am I aware that any examples 

 have been received, the green Humming-birds are generally 

 distributed from Mexico, throughout Central America, over 



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