Hans von Berlepsch on new Trochilidse. 293 



mens of /. latirostris before me which, in this character, do 

 not differ from a long-billed specimen from the Tres Marias. 

 I have long possessed a Humming-bird obtained by Forrer 

 in the Tres Marias Islands (received from the collector in 

 October 1882), and always remarked its difference from 

 true /. latirostris. For some time I was inclined to believe 

 this bird to be the same as /, magica (Muls. & Verr.) de- 

 scribed from Mazatlan ; nevertheless, entertaining some doubt 

 about its correct determination, I sent it over last year to 

 my esteemed friend Mr. Geo. N. Lawrence, of New York, 

 asking him to compare it with the type specimen of /. magica 

 in the famous collection of Mr. D. G. Elliot. Mr. Law- 

 rence showed my bird to Mr. ElHot himself, who replied 

 that he could not make the desired comparison, his collec- 

 tion being at that time inaccessible, but that he strongly 

 believed my bird to be quite different from /. magica, the 

 latter being of rather inferior size &c. At the same time 

 Mr. Lawrence confirmed my belief that the Tres Marias bird 

 was quite different from true /. latirostris, as did also Mr. Ridg- 

 way, who told me that my specimen exactly agreed with a 

 skin belonging to the U.S. National Museum collected in Tres 

 Marias by the late Col. A. F. Grayson. As regards the skins 

 of lache collected near Mazatlan by Grayson, Mr. Ridgway 

 informed me that they were in no way different from speci- 

 mens of true /. latirostris from different parts of Mexico and 

 Arizona. Concerning /. magica, Bourc. & Muls., Mr. Ridg- 

 way suggests the probability of its being founded on an im- 

 mature specimen of /. latirostris. 



Finding the material for comparison at my own command 

 still incomplete, I wrote to Mr. A. Forrer, of Santa Cruz, 

 Ca., asking him to send me all the specimens of lache col- 

 lected by him. He immediately forwarded five of the desired 

 birds to me, viz. one collected in the Tres Marias, agreeing 

 perfectly with my former specimen ; further, three skins col- 

 lected near Mazatlan, which generally agree well with speci- 

 mens of true /. latirostris from Central Mexico, but are of 

 somewhat inferior size ; and a fifth skin exactly identical with 

 the Mazatlan specimens, but said to have been obtained in 



SER. V. — VOL. V. X 



