364 EEPORT OF NATIONAL MUSEUM, 1890. 



/ 2 . Belly and flanks cinnamon-rufous or pale cinnamon ; lores not distinctly 

 rusty. 

 g l . Belly and flanks deep cinnamon-rufous. Hat. Yucatan. 



A. yucatanensis (Cabot). Cabot's Humming Bird.* 

 g 2 . Belly and flanks pale cinnamon or cinnamon-buff. Hab. Eastern 

 Mexico, north to southeastern Texas. 

 A. cerviniventris Gould. Buff-bellied Humming Bird. (Page 364.) 

 a 2 . Lower parts entirely cinnamon. 



b l . Smaller (wing 2.15-2.25, exposed culmen 0,80-0.88). Hob. Western Mexico and 



Yucatan to Nicaragua. 



A. einnamomea (Less.) Cinnamomeus Humming BirdA 



I' 2 . Larger (wing 2.50-2.70, exposed culmen 0.90 — 1.05). Hab. TresMarias Islands, 



western Mexico. A. graysoni Lawr. Gray sons Humming Bird.t 



Buff-bellied Humming Bird. Amazilia cerviniventris Gould. 



Amazilius cerviniventris Gould, P. Z. S., 1856, 150. 



Amazilia cerviniventris Gould, Mon. Troch., pt. xni, 1857, pi. 12; vol. V, 1861, pi. 



309.— Merrill, Bull. Nutt. Oru. CI , n, Jan. 1877, 26 (Ft. Brown, Texas). 

 Amazilea yucatanensis Merrill and Ridgw., Pr. U. S. Nat. Mus,, i, 1878,148 (Ft. 



Brown, Texas ; not Trochilus yucatanensis Cabot). 

 Fawn-breasted Amazili (Gould). 

 Rufous-bellied Humming Bird (Coues). 

 L'Amazili a ventre de biche (Mulsant and Verreaux). 

 Chupamirto de pecho verde y vientre castano (D'Oca). 



Range. — Eastern Mexico, north to the lower Eio Grande Valley, in 

 Texas. 



Sp. Char. — Adult (both sexes) : Lores greenish or dull brownish (never 

 rusty); belly and flanks pale dull cinnamon-buff; upper parts metallic 

 bronze or bronze-green, the upper tail-coverts somewhat tinged with 

 rusty on basal portion ; tail rufous-chestnut (glossed with purple on the 

 under surface), the feathers broadly tipped and margined terminally 

 with metallic bronze; some specimens (immature specimens only?) 

 with a considerable blackish subterminal space on one or both webs of 

 all but the middle pair of feathers; chin, throat, and chest brilliant 

 metalli c Paris-green ; breast metallic bronze-green ; bill reddish (light 

 brownish in dried skins), blackish terminally; length about 4.00-4.50; 

 wing, 2.15-2.25; tail, 1.35-1.60, slightly emarginated; exposed culmen, 

 0.75-0.82. Young similar to adult, but upper mandible black, upper 

 tail-coverts broadly margined with rusty, and tail-feathers (except mid- 

 dle pair) with a more or less extensive subterminal space of blackish on 

 one or both webs, the median portion, however, including shaft, chest- 

 nut. 



Adult male (No. 90749, Fort Brown, Texas, Dr. J. C. Merrill, IT. S. 

 Army ): Above metallic green, tinged with bronze, the top of the head 

 very much duller; upper tail coverts bronze-green, their basal portion 



* Trochilus yucatanensis Cabot, Proc. Nat. His. Soc, Bost., 1845, 74. Amazilia yuca- 

 tanensis Gould, Mon. Troch. pt. xxiii, 1861 (vol. v, 1861, pi. 308). 



t Ornismya einnamomea Less., Rev. Zool., 1842, 175. Amazilia einnamomea Elliot, 

 Class, and Synop. Troch., 1879, 219. 

 J. Amazilia (Pyrrhophcena) graysoni Lawr., Ann. Lye. N. Y., 1867, 404. 



