386 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Chrysuronia elidae Gould, Mon. Troch., pt. xvi, 1858 (vol. v), pi. 328; Introd. 

 Troch., oct. ed., 1861, 165.— Sclatee and Salvin, Ibis, 1859, 130 (Guate- 

 mala). — ScLATER, Cat. Am. Birds, 1862, 316 (Cobdn, Guatemala). — Law- 

 rence, Ann. Lye. N. Y., vii, 1862, 465 (Isthmus of Panamd); ix, 1868, 128 

 (Costa Rica). — Frantzius, Journ. fiir Orn., 1869, 317 (Costa Rica). — Salvin, 

 Proc. Zool. Soc. Lond., 1870, 211 (Bugaba and Chitra, Panamd); Ibis, 1872, 

 320 (Chontales, Nicaragua); Cat. Birds Brit. Mus., xvi, 1892, 251, 662 (Cobdn, 

 Choctum, and Masagua, Guatemala; La Libertdd, Salvador; La Libertad and 

 Santo Domingo, Chontales, Nicaragua; Costa Rica; Volcdn de Chtriqui, 

 Bugaba, Chitra, and David, Panamd). — Mulsant and Verreaux, Hist. Nat. 

 Gis.-Mouch., ii, livr. i, 1876, 4, 13 (Guatemala, etc.); iv, livr. 3, 1878, 186.— 

 Mulsant, Ann. Soc. Linn. Lyon, xxii, 1876, 207. — Boucard, Liste Ois. 

 recol. Guat., 1878, 47; The Hum. Bu-d, ii, 1892, 83 (Veragua); Gen. Hum. 

 Birds, 1894, 140 (Guatemala; Nicaragua; Veragua). — Zeledon, Cat. Aves de 

 Costa Rica, 1882, 21.— Elliot, Classif. and Synop. Troch., 1879, 169.— Ridg- 

 WAY, Proc. U. S. Nat. Mus., vi, 1883, 386 (Sucuya, Nicaragua; crit.); x, 1887, 

 591 (Rio Segovia, Hondm-as); Condor, vii, 1905, 154, in text (Pigres, Costa 

 Rica). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 311 (La 

 Libertdd and Santo Domingo, Nicaragua; etc.). — Cherrie, Expl. Zool. 

 Merid. Costa Rica, 1893, 44 (Lagarto and Boruca, e. w. Costa Rica). 



[Chrysuronia] elicias Sclater and Salvin, Nom. Av. Neotr., 1873, 93. 



C[hrysurisca] eliciae Cabanis and Heine, Mus. Hein., iii, 1860, 42 (Hondiu-as). 



[Chrysurisca] eliciae Heine and Reichenow, Nom. Mus. Hein. Orn., 1890, 180 

 (Guatemala; Honduras). 



Eylocharis elicix Mulsant and Verreaux, Claesif. Troch., 1866, 38. — Bangs, 

 Auk, xviii, 1901, 359 (Divala, Panamd); xxiv, 1907, 295 (Boruca and Pozo 

 del Rio Grande, Costa Rica); Proc. New Engl. Zool. Club, iii, 1902, 29 (Bo- 

 quete, Panamd, 3,000 ft.). — Carriker, Ann. Carnegie Mus., vi, 1910, 530 

 (Pacific slope, Costa Rica, 1,000-2,000 ft.). 



[Eylocharis] elicix Simon, Cat. Troch., 1897, 15. — Sharpe, Hand-list, ii, 1900, 111. 



II[ylocharis] eliciae Hartert, Das Tierreich, Troch., 1900, 68. 



Genus CHALYBURA Reichenbach. 



[Agyrtria.] 5. Chalybura Reichenbach, Aufz. der Colib., March (?), 1854, 10. 



(Type, Trochilus huffoni Lesson.) 

 Hypuroptila Gould, Mon. Troch., pt. vii (vol. ii), May, 1854, pi. 89. (Type, 



Trochilus huffoni Lesson.) 

 [Eylocharis.] 8. Cyanochloris Reichenbach, Aufz. der Colib., 1854, 10. (Type, 



Trochilus {Glaudsl) cseruleogaster Gould.) 

 Methon Mulsant, Ann. Soc. Linn. Lyon, n. s., xxii, 1876, 203 (Cat. Ois. Mouch., 



1875, 7). (Type, Chalybura caeruleiventris Reichenbach= Trochilus (Glaucis?) 



cseruleogaster Gould.) 



Rather large Trochilidae (length about 105-115 mm.), with pecul- 

 iarly modified or specialized under tail-coverts (these downy, semi- 

 decomposed, plume-like), stout, straight, or slightly decurved bill 

 much longer than head, the tail long (about two-thirds as long as 

 wing), emarginate, with broad rec trices, and coloration rather plain. 



Bill much longer than head, stout, straight, or faintly decurved, 

 nearly terete but slightly depressed, especially at base; culmen 

 rounded except for basal portion, where compressed into a narrow 



