BIRDS OF NORTH AND MIDDLE AMERICA. 395 



I'oinif/. Similar in coloration of upper parts to adults but slightly 

 duller, the gray of pileum and liindneek very slightly tinged with 

 ])rownish; yellow of under parts very much paler, almost yellowish 

 wliite. 



Southern Mexico, in wStates of Vera Cruz (Playa Vicente; Pasa 

 Nueva; Santa Lucrecia), Oaxaca (Santa Efigenia; Tapana; Guichi- 

 covi), Yucatan (Merida; Tizimin), and Chiapas (Iluehuetan; moun- 

 tains near Tonala; Tuxtla Gutierrez) ; Guatemala (Choctum; Cajabon 

 Chisec; Volcan de Fuego; Escuintla; Naranjo); Honduras (San Pe- 

 dro; Truxillo); Nicaragua (Greytown; Chinandega; Sucuya; San Juan 

 del Sur; Rio San Juan); Costa Rica (Angostura; La Palma de Xi- 

 coya; Pozo Azul de Pirris; Naranjo; Carrillo; Bonilla; Jimenez* 

 Pigres; Juan Vifias) ; Panama (Lion Hill Station) ? 



Cyclorhynchns dnereiceps Sclater, Ibis, Oct., 1859, 443 (Oaxaca, Mexico; coll. P. 

 L. Sclater); Proc. Zool. Soc. Loncl., 1859, 384 (Playa Vicente, Vera ("ruz).— 

 Salvin and Sclater, Ibis, 1860, 399 (Escnintla, Guatemala). 



Rhynchocydus dnereicejps Sclater, Cat. Am. Birds, 1862, 220 (Oaxaca; Cajabon, 

 Guatemala); Cat. Birds Brit. Mus., xiv, 1888, 169 (Oaxaca; n. Yucatan; 

 Choctum, Cajabon, Escuintla, Chisec, and Volcan de Agua, Guatemala; San 

 Pedro, Honduras; Angostura, Costa Rica; Panama). — Sclater and Salvin, 

 Proc. Zool. Soc. Lond., 1864, 359 (Isthmus Panama); 1870, 837 (San Pedro, 

 Honduras). — Lawrence, Ann. Lye. N. Y., ix, 1869, 201 (Me:ida, Yucatan). — 

 Lawrence, Bull. II. S. Nat. Mus., no. 4, 1876, 26 (Santa Efigenia and Tapana, 

 Oaxaca). — Nehrkorn, Journ. fiir Orn., 1879, 356 (descr. nest and eggs). — 

 BoucARD, Proc. Zool. Soc. Lond., 1883, 447 (Tizimin, Yucatan). — Nutting, 

 Proc. IT. S. Nat. Mus., v, 1882, 395 (La Palma de Nicoya, Costa Rica); vi, 

 1883, 374, 384 (San Juan del Sur and Sucuya, Nicaragua).— Ridgway, Proc. 

 U. ^S. Nat. Mus., V, 1882, 395 (descr. nest).— Salvin and Godman, Biol. 

 Centr.-Am., Aves, ii, 1888, 10.— Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 

 506 (Greytown, Nicaragua). — Underwood, Ibis, 1896, 437 (Volcan de Mira- 

 valles, Costa Rica). 



[Rhynrhocychis] cincrciceps Sclater and Salvin, Nom. Av. Neotr., 1873, 49. — 

 Sharpe, Hand-list, iii, 1901, 102. 



[Elainia] rinereiceps Gray, Hand-list, i, 1869, 354, no. 5372. 



Khynclioqjdus sulphurescens (not Flalyrhynchus sulphurescens Spix) Lawrence, 

 Ann. Lye. N. Y., ix, 1868, 112 (Angostura, Costa Rica; see correction on p. 

 146).— (?)Frantzius, Journ. fur Orn., 1869, 307 (Costa Rica).— (?) Boucard, 

 Proc. Zool. Soc. Lond., 1878, 63 (San Carlos, Costa Rica). 



Genus SERPOPHAGA Gould. 



Serpophaga Gould, Zool. Voy. "Beagle," iii, 1841, 49. (Type, S. alhncoronata 



Gould, = Sylvia sitbcristata Vieillot.) 

 Serphnphaga (emendation) Cabanis and Heine, Mus. Ilein., ii, 1859, 53. 



Small Tyrannida^ (wing not more than 63 mm., usually much less), 

 with small slender bill, basal j)halanx of middle toe onl}' about half 

 united to outer toe, and almost wholly free from inner toe, the colora- 

 tion plain gray and dusky above, with ])ai'tially concealed white spot 

 on crown, plain light gray or grayish wliite below (sometimes passing 

 into pale yellow on abdomen, etc.). 



