114 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Myrmeciza ocddentalis Cherrie, Anal. Inst. P'is.-Geog. Costa Rica, vi, 1893, 19 

 (Pozo del Pital, s. w. Costa Rica). — Carriker, Ann. Carnegie Mus., vi, 

 1910, 616 (Pacific lowlands and foothills, Costa Rica; crit.; descr. nest and 



Myrmelastes ocddentalis Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 

 228 (Bebedero, etc., w. Costa Rica). — Cherrie, Exj^l. Zool. Merid. Costa 

 Rica, 1893, 43 (Palmar, Lagarto, Boruca, and Buenos Aires, s. w. Costa 

 Rica). — Carriker, Ann. Carnegie Mus., v, 1908, 10 (crit.). 



[Myrmelastes] ocddentalis Sharpe, Hand-list, iii, 1901, 32. 



Myrmelastes exsul ocddentalis Hellmayr, Novit. Zool., xiii, 1906, 341 (Pozo 

 Azul, etc., s. w. Costa Rica; Bugaba, Panama; crit.). — Bangs, Auk, xxiv, 

 1907, 296 (Boruca, Paso Real, Pozo del Rio Grande, and Barranca, s. w. 

 Costa Rica). — Carriker, Ann. Carnegie Mus., v, 1908, 10, in text. 



M[yrmelastes] exsul ocddentalis Ridgway, Proc. Biol. Soc. Wash., xxi, 1908, 

 194, in text. 



Myrmelastes intermedius (not Myrmeciza intermedia Cherrie) Salvin and Godman, 

 Biol. Centr.-Am., Aves, ii, 1892, 227, part (San Carlos and San Mateo, Costa 

 Rica; Bugaba, Panama). 



MYRMECIZA ZELEDONI Ridgway. 

 ZELED6N'S antbird. 



Adult male. — Uniform black, relieved only by a white patch on 

 inner-anterior portion of lesser wmg-covert area, a narrow white 

 margin thence around bend of wmg, and white edging to alulae; 

 bill and feet black; iris chestnut; bare skin of lores and orbits blue, 

 becoming white behind eye;*^ length (skins), 168-188 (178); wing, 

 78-86 (80.9); tail, 70-82 (76.8); culmen, 21-23 (22); tarsus, 33.5- 

 34.5 (34); middle toe, 20-22 (21.2).^ 



Adult female. — Above plain dark chocolate brown (or between 

 chocolate and seal brown), the tail blackish brown or brownish 

 black; loral, orbital, and auricular regions, chin, and upper throat, 

 blackish brown or brownish black; under parts lighter chocolate 

 brown or Vandyke brown; maxilla blackish brown, mandible pale 

 yellowish brown or dull yellowish (in dried skins); legs and feet 

 dusk}^ brown (in dried skins); length (skins), 166-193 (175); wing, 

 75-81 (78.6); tail, 71.5-78 (75); culmen, 20.5-22 (21.1); tarsus, 

 32-35 (33.6); middle toe, 20-22 (21.1).'= 



Costa Rica (Naranjo de Cartago; Guayabo; Guapiles; Carrillo; La 

 Hondura; Tucurriqui; Cariblanco de Sarapiqui) and western Panama 

 (Boquete de Chitra; Calobre; Calovevora; Caribbean slope, Volcan 

 de Chiriqui). Western Colombia. 



ThamnopMlus immaculatus (not of Lafresnaye) Salvin, Ibis, 1870, 114 (Tucur- 

 riqui, Costa Rica; crit.); Proc. Zool. Soc. Lond., 1870, 194 (Volcan de Chiri- 

 qui, Calovevora, and Calobre, Panamd). — Sclater, Cat. Birds Brit. Mus., xv, 

 1890, 189, part (Tucurriqui, Costa Rica; Boquete de Chitra, Calobre, Calove- 

 vora, and Volcan de Chiriqui, Panama). 



o Zeledon, manuscript. 



b Five specimens, from Costa Rica. 



c Eight specimens from Costa Rica (7) and western Panama (1). 



