BIEDS OP NORTH AND MIDDLE AMETtTCA. 



281 



Adult male.— Length (skins), 145-160 (152); wing, 65.5-82 (77.1); 

 tail, 65.5-78 (73.5); culmen, 13-15.5 (14); tarsus, 15-18 (16.9); 

 middle toe, 11-13.5 (12.1 ).« 



Adult formle.— Length (skins), 131-156 (142); wing, 66-80 (70.8); 

 tail, 61.5-75 (67.1); culmen, 13-15 (13.9); tarsus, 15-17.5 (16.2); 

 middle toe, 10.5-13 (11.7).'' 



Southeastern Mexico, in States of Vera Cruz (Cordova; Potrero, 

 near Cordova; Jalapa; Mirador; Coatepec; Cofrc de Perote; Cuesta 

 delSIisantla; Socliiapa; Pasa Nueva), Puebla (Metlaltoyuca), Mexico 

 (near City of Mexico)?, Oaxaca (Santa Efigenia), Tabasco (Teapa), 

 Campeche (Apazote), anil Yucatan (La Vega; Izah\m; Chiclien- 

 Itza), and southward through Guatemala (Chisec; Choctum; Savana 

 Grande; Pie de la Cuesta in San Marcos; Naranjo; Patulul, Solola; 

 Mazatenango; Los Amates, Yzabdl), British Honduras (Orange 

 Walk; forest near Manatee Lagoon; Ycacos Lagoon; forest near 

 Quamius Creek), Honduras (Santa Ana), and Nicaragua (Sucuyji) to 

 Costa Rica'' (Naranjo de Cartago; Monte Redondo; La Cednll, 

 Aserri; Coralillo; Bonilla; Guayabo; Mojica; Dota; Santa Maria de 

 Dota; Cerro Santa Maria; Tenorio; Bolson; Volcan de Miravalies). 



Sittasomus sylvioidi'S Lafresnaye, Rev. et Mag. Zool., 1850, 590 (Mexico). — 

 Reiciienbach, Handb. Spec. Orn., 1853, 177. — Sclater, Proc. Zool. See. 

 Lend., 1856, 290 (C6rdova, Vera Cruz); 1859, 365 (Jalapa, Vera Cruz); 1864, 

 175 (near City of Mexico); Cat. Am. Birds, 18G2, 160 (do.).— Salvin, Ibis, 



o Twenty-three specimens. 



a Twenty-two specimens. 



c Costa Rican examples are intermediate between S. s. sylvioides and S. s. levis, agree- 

 ing best with the former in measurements and with the latter in coloration. In fact, 

 they may be as well referred to one form as to the other. 



