BIRDS OF NORTH AND MIDDLE AMERICA. 559 
Panama (Colén; Paraiso; Rio Grande Station; Lion Hill; Panama; 
Calobre; Chitra; Calovévora; Castillo; Boquete; Divala; Volcan de 
Chiriqui; Cordillera del Chucu; Santiago and Santa Fé, Veragua) and 
southwestern Costa Rica (Boruca; Buenos Aires; Dota Mountains).- 
Chlorostilbon assimilis Lawrence, Ann. Lyc. Nat. Hist. N. Y., vii, 1862, 292 
(Lion Hill Station, Panam4 Railway; coll. G. N. Lawrence?); ix, 1868, 128 
(Cartago, Costa Rica).—GouLp, Introd. Troch., oct. ed., 1861, 178.—Satvin, 
Proc. Zool. Soc. Lond., 1867, 156 (Santa Fé de Verd4gua, Panam4); Cat. Birds 
Brit. Mus., xvi, 1892, 54 (Volcan de Chiriqui, Chitra, Santa Fé, Calovévora, 
Lion Hill, and Paraiso, Panam4).—Frantzius, Journ. fir Orn., 1869, 317 
(Costa Rica)—Satvin and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 265 
(Cordillera del Chucu, Calobre, etc., Panam4).—Bovucarp, The Hum. Bird, 
ii, 1892, 79 (Verégua; Colén); Gen. Hum. Birds, 1894, 124 (Colén; Panamé; 
Veragua).—CuErRRIE, Expl. Zool. Merid. Costa Rica, 1893, 44 (Boruca, s. w. 
Costa Rica; crit.).—Banas, Auk, xviii, 1891, 28 (San Miguel I., Bay of Pan- 
ama); xxiv, 1907, 295 (Boruca); Proc. New Engl. Zool. Club, iii, 1902, 29 
(Boquete, Panam4, 4,000-4,800 ft.) —Tuayer and Banes, Bull. Mus. Comp. 
Zool., xlvi, 1905, 150 (San Miguél and Saboga islands, Bay of Panamé).— 
CaRRIKER, Ann. Carnegie Mus., vi, 1910, 532 (Dota Mts., Boruca, and Buenos 
Aires, Costa Rica), 
C[hlorostilbon assimilis Hartert, Das Tierreich, Troch., 1900, 76. 
[Chiorostilbon] assimilis SHarpze, Hand-list, ii, 1900, 113. 
C[hlorolampis] assimilis Hzine, Journ. fiir Orn., 1863, 201 (Panam4). 
Chlorolampis assimilis SctatEeR and Sauvin, Proc. Zool. Soc. Lond., 1864, 365 
(Lion Hill).—Satvin, Proc. Zool. Soc. Lond., 1867, 156 (Santiago and Santa 
Fé de Verdégua, Panam4; crit.); 1870, 211 (Volc4n de Chiriquf, Calovévora, 
Castillo, and Cordillera del Chucu, Panamé). 
[Hylocharis] assimilis Gray, Hand-list, i, 1869, 149, no. 1929. 
Chlorostilbon angustipennis (not Trochilus angustipennis Fraser) Exxiot, Ibis, 
1875, 153, part (Panama4; Ver4gua; crit.; synon.); Classif. and Synop. Troch., 
1879, 245, part (Panam4; Verd4gua)—ZEitepén, Cat. Aves de Costa Rica, 
1882, 22; Anal. Mus. Nac. Costa Rica, i, 1887, 122 (Panamé). 
[Chlorostilbon] angustipennis ScLaTER and Satvin, Nom. Av. Neotr., 1873, 94, 
part (Panam4; Veragu4). 
Chrysomirus angustipennis MULSANT and VERREAUX, Hist. Nat. Ois.-Mouch., ii, 
livr. 2, 1875, 102, part (Panam4; Veragud4); iv, livr. 3, 1878, 199, part. 
Chlorostilbon panamensis Boucarp, Gen. Hum. Birds, sig. 0, March, 1894, 124, 
in text (Panam4; name proposed ‘‘if it should prove new;’’ see Hartert, Novit. 
Zool., iv, 1897, 152). 
CHLOROSTILBON CARIBAUS Lawrence. 
CARIBBEAN EMERALD. 
Similar to C. assimilis, but wing and tail much shorter and bill 
longer, the adult male with pileum brilliant metallic golden instead 
of dull metallic grass green. 
Adult male.—Pileum brilliant metallic golden green; rest of upper 
parts varying from metallic golden green to nearly grass green, the 
upper tail-coverts sometimes slightly more bluish green; tail glossy 
blue-black or black glossed with steel-blue; remiges dark brownish 
slate or dusky, faintly glossed with violaceous; under parts brilliant 
metallic golden green, usually appreciably more golden posteriorly, 
purer (less yellowish) green anteriorly; femoral tufts white; bill 
