THE HUMMING BIRDS. 369 



rt^ Tail luaiuly l)lackish : posterior lower parts dull whitish, mixed with j^rayish 

 browu aud greenish. Adult male with forehead and chin deep rich blue; 

 middle tail-feather entirely metallic green or bronze, the others tipped with 

 green or bronzy. Adult female : Lower parts dull light grayish, or grayish 

 white, more or less spotted with green, the sides almost continuously of this 

 color; middle tail-feathers entirely green or bronzy, the others black, the two 

 or three outer ones tipped with dull grayish. Hah. Highlands of Guatemala 

 aud Mexico. B. leuootis {Yieill.). White-eared Humminfj Bird.^ 



Xantus's KuMMi>fG Bird. Baailinna xantusi {hAWR.). 



(Plate XLiv.) 



Amazilia zantusi Lawr., Ann. Lye. Nat. Hist. N. Y., vii, April, 18G0, 109 (female). 

 Heliopicdica xantusi Gould, Mon. Troch., pt. xxi, 181)1, pi. 2; vol. ii, 1861, pi. 

 65.— Coop., Orn. Cal., i, 1870, 365.— B. B. and R., Hist. N. Am. B., ii, 1874, 167, 

 pi. 47, fig. 3. 

 Basiliiuia xanthusi Elliot, Class, and Synop. Troch., 1879, 227. 

 Baailinna xantusi Ridgw., Pr. U. S. Nat. Mus.. iii, 1880, 6, 188. 

 Heliopadica castaneocauda Lawr., Ann. Lye. Nat. Hist. N. Y.,vii, Apr., 1860, 145 



(male).— Elliot, lUnstr. B. N. Am.,i, 1869, p. xxii. 

 LeCoelig^ne de Xauthus (Mulsant aud Verreaux). 

 Chupamirto de pico coral y vientre castauo (D'Oca). 



Range. — Cape district of Lower Califoruia. 



Sp. Char. — Tail mainly cbesttmt ; posterior under parts pale ciuna- 

 mon-riifons. Adult male with forehead and chin opaque black or dull 

 blue-black, throat and chest brilliant metallic yellowish green, and a 

 broad, white stripe behind eye; length (skins), about 3.40-8.60 ;t wing, 

 1.95-2.15; tail, 1.35-1.40; exposed culmen, 0.65-0.70. Adult female with- 

 out any black about head, the white post-ocular stripe less distinct, and 

 the entire under parts light cinnamon-rufous; length (skins), about 

 3.10-3.50;! wing, 1.85-2.00; tail, 1.15-1.25; exposed culmen, 0.60-0.70. 



Adult male (No. 117767, Miratiores, Lower California, November 29, 

 1859; J. Xantus):§ Forehead slightly glossy blue-black, changing grad- 

 ually into duller blackish on the crown ; chin and a broad stripe thence 

 beneath eye to ear-coverts opaque, velvety black ; lores dull grayish 

 white; behind the eye a distinct stripe of white, changiug into light 

 cinnamon grayish on side of neck ; occiput, hind-neck, wingcoverts, 

 scapulars, and back, metallic bronze-green ; upper tail-coverts bronze- 

 green mixed with rusty ; tail chestnut, faintly glossed with purple on 

 under surface, the middle pair of feathers broadly margined with metal- 

 lic bronze green ; remiges dusky brownish slate, very fiiintly glossed 

 with purplish. Throat and upper part of chest brilliant metallic yel- 

 lowish emerald-green or Paris green ; feathers of lower chest and breast 



* Trochilus leucoUsYvE.iiuL., Nouv. Dict.,ed. 2, XXH, 1818, 428. Baailinna leucotis 

 Reich., Aufz. der Colib., 1853; 13. 

 t Length of a specimen before skinniug said to be 4.75. 

 t Length before skinning said to be 3.30-3.65. 

 ^ Type of Heliopn'dica castaneocauda, Lawr. 



H. Mis. 129, pt. 2 24 



