626 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



distinct bars except on under tail-coverts, even the latter sometimes 

 indistinctly barred.'' 



Adult m,ale. -'Length {skins), 140-147(143); wing, 65-Yl (69.8); tail, 

 54-60(55.8); exposed culmen, 19-20 (19.6); tarsus, 34-27(25.7); mid- 

 dle toe, 16-17.5 (16.8).* 



Adult female.— Length, (skins), 133-147,(140); wing, 64-72 (66.3); 

 tail, 49-53 (51.5); exposed culmen, 17-20 (19); tarsus, 24-25 (24.8); 

 middle toe, 15-18 (16).* . 



Eastern Costa Rica (Pacuare; Jimenez; Limon; Rio Frio; Talamanca; 

 San Jose; Angostura; Tucurrique; Rio Sucio) and Nicaragua (Grey- 

 town; Los Sabalos; Rio Escondido). 



ThryopMlus castaneus (not Thryoihorus castaneus Lawrence, 1861) Lawrence, Ann. 

 Lye. N. ,Y., ix, 1868, 93 (Pacuare and Angostura, Costa Rica). — Frantzius, 

 Journ. fiir Orn., 1869, 291 (Costa Rica). — Boucabd, Proc. Zool. Soc. Lond., 

 1878, 51 (Costa Rica). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 

 1880, 88, part (Pacuare, Angostura, and Tucurrique, Costa Rica). — Zeledon, 

 Cat. Aves de Costa Rica, 1882, 3.— Nutting, Proc. U. S. Nat. Mus., vi, 1884, 

 398 (Los Sdbalos, Nicaragua). 



[ThryopMlus'] castaneus Sclater and Salvin, Nom. Av. Neotr., 1873, 6, part 

 (Costa Rica). 



ThryopMlus costaricensis Shaepe, Cat. Birds Brit. Mus., vi, 1881, 217 (Costa Rica; 

 coll. Brit. Mus. ) . — Reichenow and Schalow, Journ. fiir Orn. , 1884, 428 (reprint 

 of orig. descr.). — Zeledon, Proc. U. 8. Nat. Mus., viii, 1885, 105; Anal. 

 Mus. Nac. Costa Rica, i, 1887, 105 (Jim(§nez and Rio Sucio, Costa Rica). — 

 Chbrrie, Proc. U. S. Nat. Mus., xiv, 1891, 519 (Costa Rica; Los Sabalos, 

 Nicaragua; crit.). — Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 482 (Grey- 

 town and Rio Escondido, Nicaragua; Rio Frio, Costa Rica; habits). — Salvin, 

 Bull. Brit. Orn.. Club, no vi, 1893, p. xxxii (Nicaragua). 



TlhryopMlusI castaneus costaricensis Hellmayr, Verb. k. k. zool.-bot. Gesellsch. 

 Wien, 1901, 767, in text. 



THRYOPHILUS NIGRICAPILLUS SCHOTTII (Baird). 

 SCHOTT'S WREN, 



Similar to T. n. nigncapillus," but back, etc., darker chestnut and 

 under parts more heavily or uniformly barred with black, the whole 

 throat narrowly barred, instead of immaculate white. 



Adult {sewes alike). — Pileum, nape, and sides of neck uniform black; 

 rest of upper parts bright chestnut, the wings and tail broadly barred 

 with black (the bars narrower and less distinct on wing-coverts) ; a very 

 narrow superciliary streak of white; suborbital region and upper 

 anterior portion of auricular region black; posterior and lower por- 

 tions of auricular region and malar region white, narrowly streaked 

 with black; chin and throat white, narrowly and irregularly barred 



" Occasionally there are naore or less distinct dusky bars on abdomen or sides, 

 sometimes both; and there can be no question as to the intergradation of this form 

 with the Panama type. 



6 Six specimens. 



'■See page 622.. 



