Notes on Humming-Birds. 435 



H. laticluvius, which is the same bird. The uuiuber of the 

 ' Humming Bird ' in which the description of H. heiirici 

 appeared is dated 1st April, 1891, and it certainly came out 

 in April, Salvin's description is in the Api-il number of the 

 ' Annals and Mag of Nat. Hist./ a journal which is always 

 in the hands of its subscribers on or soon after the first of 

 every month. The descriptions, therefore, are exactly con- 

 temporary ; and as INfr. Salvin's description was based on 

 three skins, and Mr. Boucard's on one only, and as Mr. 

 Salvin's type lias been figured (Cat. Birds B. M. xvi. pi. v. 

 fig. 1), we prefer to adopt his name for this distinct species. 

 The other species which Mr. Boucard described is H. rot- 

 schildi (sic), from a Bogota collection. In this bird, with its 

 deep purple npperside, the colour of the throat is of a fading 

 golden bronze. Although the coloration of this bird is 

 very peculiar, it is a tine HeUangelus. In this Mons. Simon 

 [in Utt.) also agrees with me. 



Genus Polvtmus. 



The name of viridissimus cannot be used for the second 

 species described in the ' Catalogue of Birds.' 



Vieillot did not give this name to the bird figured in 

 the ' Oiseaux Dores,' i. pi. xlii., -which he mentioned in 

 the Nouv. Diet, vii, p. 375, but identified his bird 

 (which seems to be what we now call P. viridissimus) with 

 Gmelin's Trochilus viridissimus. Gmelin's T. viridissimus, 

 however, is not the Oiseau-Mouche tout vert of Audebert and 

 Vieillot, but the All-green Humming-Bird of J^ldwards 

 (Gleanings Nat. Hist. iii. p. 316, pi. ccclx. fig. I) and the 

 Orvert of Buffon (Ois. vi. p. 17), M'hich Salvin quotes as a 

 synonym of Chlorosiilbon prasinus. It probably is the same 

 as prasinus of Lesson, but it is without locality, and the 

 figure and description are not exact enough to identify it with 

 certainty with any of our recognized forms of Cldorostilbon. 

 Therefore it may be better to retain the name 0. prasinus 

 (Less.) now in common use, although it is not much more 

 certain than Graelin's viridissimus [cf. Hartert, Nov. Zool. 

 iv. pp. 150, 151). 



