BIRDS OF NORTH AND MIDDLE AMERICA. 558 
dark brownish slate or dusky, faintly glossed with violaceous; under 
parts brilliantly metallic golden green, purer (less yellowish) green 
anteriorly; femoral tufts white; maxilla blackish or dusky for ter- 
minal half or more, fading into light brownish (reddish in life?) 
basally; mandible pale brownish (pinkish or flesh-colored in life), 
passing into dusky at tip; iris dark brown; feet dusky; length 
(skins), 95-105 (99); wing, 47-50.5 (48.3); tail, 39-45 (42.5), middle 
rectrices, 16-18.5 (17.2); culmen, 14.5-15.5 (14.9).¢ 
Adult female.—Above metallic green or golden green, the pileum 
not more brilliant than back, etc.; four middle rectrices metallic 
green or golden green, sometimes darker terminally or subterminally ; 
third rectrix with terminal third or fourth of outer web blue-black or 
black glossed with violet-blue, the remaining portion metallic green, 
the inner web with terminal portion blackish, middle portion brown- 
ish gray, basal portion metallic greenish; fourth rectrix (from middle) 
dusky metallic greenish basally, middle portion light brownish gray, 
subterminal portion (extensively) glossy blue-black, tip pale brownish 
gray or grayish white; fifth (outermost) rectrix similar, but whitish 
tip more extensive, and blackish subterminal area correspondingly 
more restricted; remiges dark brownish slate or dusky, faintly glossed 
with violaceous; under parts plain grayish white or very pale gray; 
femoral tufts white; bill, etc., as in adult male, but maxilla more 
extensively blackish and mandible with more of dusky at tip; length 
(skins), 83-91 (88); wing, 46-48.5 (47.2); tail, 31-35 (32.8), middle 
rectrices, 21.5-24 (22.6); culmen, 15-16.5 (15.8).° 
Islands of Cozumél, Mugeres, and Holbox, off coast of Yucatan. 
Chlorostilbon forficatus Ripaway, Descr. New Sp. B. Cozumel, Feb. 26, 1885, 3 
(Cozumél I., Yucatan: coll. U. 8. Nat. Mus.); Proc. Biol. Soc. Wash., iii, 
1885, 3; Proc. U. S. Nat. Mus., viii, 1885, 574 (descr.; crit.) —Satvin, Ibis, 
1889, 366 (Mugeres I., Holbox I., and Cozumél I., Yucatan; crit.); Cat. Birds 
Brit. Mus., xvi, 1892, 46.—Sauvin and Gopman, Biol. Centr.-Am., Aves, ‘ii, 
1892, 263. 
C[hlorostilbon] forficatus HarTERT, Das Tierreich, Troch., 1900, 74 (monogr.). 
[Chlorostilbon] forficatus SHaRPE, Hand-list, ii, 1900, 112. 
Chlorolampis forficata Boucarp, Gen. Hum. Birds, 1894, 113 (“Yucatan”). 
~ Chlorostilbon caniveti (not Ornismya canivetii Lesson) Satvin, Ibis, 1885, 119 
(Cozumél I.; crit.). - 
CHLOROSTILBON CANIVETII CANIVETII (Lesson). 
CANIVET’S EMERALD. 
Similar to C. forficatus, but tail much less deeply forked and wing 
decidedly shorter. 
Adult male.—Pileum bright metallic golden green or golden; rest 
of upper parts less brilliant golden green, varying to almost golden 
bronze; tail glossy blue-black or black glossed with blue, the four to 
a Ten specimens. b Six specimens. 
