318 Mr. D. G. Elliot on the Trochilidffi. 



Gould, by whom they were described as above. It is a very 

 distinct species, and very rare in collections. Although allied 

 to H. exortis, it has too many and too striking differences to 

 be confounded with that species. 



Heliotrypha exortis. 



Trochilus exortis, Fraser, P. Z. S. 1840, p. 14. 



Ornismya parzudakii, De Long. & Parz. (nee Less.), Rev. 

 Zool. 1840, March, p. 72. 



Heliotrypha parzudakii, Bp. Rev. et Mag. Zool. 1854, p. 

 254 ; Gould, Mon. Troch. vol. iv. p. 240 ; Id. Intr. Troch. 

 p. 131, sp. 265. 



Hab. Columbia, Ecuador, Quito {Jameson) . 



This well-known species (familiar to ornithologists as H. 

 parzudakii) was described by Eraser in February 1840, in 

 the ' Proceedings ' of the Zoological Society, as Trochilus 

 exortis, and by De Longuemare and Parzudaki in the ' Revue 

 Zoologique,' in March of the same year, as Ornismya par- 

 zudakii. The name given by Fraser will therefore stand by 

 right of priority ; and although one may regret thus to be 

 obliged to overturn an old established name, yet in the 

 present case the facts are too clear and unanswerable to ad- 

 mit the adoption of any other course, and the species must 

 hereafter be known as Heliotrypha exortis*. 



It is a beautiful species, very common in the vicinity of 

 Bogota, and in collections is generally the sole represen- 

 tative of the genus now under consideration. 



I notice that specimens from Ecuador are somewhat larger, 

 with longer bill and wings, while the throat-mark is more 

 restricted to the centre of the throat than in Columbian birds. 

 I do not consider these to be in any way of specific value, 

 or even as elevating the specimens to the dubious rank of a 

 variety. 



Heliotrypha barrali. 



Heliotrypha harrali, Muls. et Verr. Ann. Soc. Linneenne 

 de Lyon, xviii. p. 106 (1868). 



Heliangelus squamigularis, Gould, P. Z. S. 1871, p. 503. 



* [Quite clear, certainly, if reading a paper before a scientific meeting 

 is equivalent to publication. But are we all agreed on this point ? — Ed.] 



