112 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



sometimes brownish; length (skins), 124-140 (132); wing, 64-69.5 

 (66.4); tail, 42.5-50 (45:2); cuhnen, 19-21 (20); tarsus, 27.5-31 

 (28.3); middle toe, 16.5-19 (17.9).« 



Caribbean slope of Panama (Lion Hill; Frijole station; Chepo; 

 Panama; Cascajal, Code), Costa Rica (Jimenez; Sipiirio; Talamanca; 

 Angostura; Rio Reventazon; Guacimo; Guapiles; Cuabre; Rio Sicsola; 

 Siquirres; LaCristina; Carrillo; Limon; La Balsa; Turrialba; Volcan 

 de Turrialba; El Ilogar; Rio Banana; La Vijagua; Pacuare) and 

 Nicaragua (Los Sabalos; Rio Escondido; Chontales; San Emilis, Lake 

 Nicaragua). 



Myrmeciza exsul Sclater, Proc. Zool. Soc. Lond., 1858 (pub. 1859), 540 (Panama; 

 coll. Derby Mus.). — Carriker, Ann. Carnegie Mus., vi, 1910, 614 (Caribbean 

 lowlands up to 2,000 ft., Costa Rica; crit.; habits; descr. nest and eggs). 



M[yrmeciza\ exsul Hellmayr, Verb. k. k. zool.-bot. Gesellsch. Wien, 1903, 215 

 (diagnosis). 



Myrmelastes exsul exsul Hellmayr, Novit. Zool., xiii, 1906, 341 (Panama; e. Costa 

 Rica; Rio Escondido and Chontales, Nicaragua; crit.; synonymy). 



Myrmeciza immaculaki (not Thamnophilus immaculatus Lafresnaye) Sclater and 

 Salvin, Proc. Zool. Soc. Lond., Oct. 1, 1864, 357 (Lion Hill, Panama; coll. 

 Salvin and Godman).— Lawrence, Ann. Lye. N. Y., ix, 1868, 109 (Pacuare 

 and Angostura, Costa Rica; crit.). — Frantzius, Journ. fur Orn., 1869, 305 

 (Costa Rica).— Nutting, Proc. U. S. Nat. Mus., vi, 1883, 405 (Los Sabalos, 

 Nicaragua; habits). — Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 115, 

 part (Pacuare and Jimenez, Costa Rica). — Sclater, Cat. Birds Brit. Mus., 

 XV, 1890, 279, part (Panama and Chepo, Panama; "Valza," i. e. La Balsa, 

 Costa Rica). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, pi. 51, 

 figs. 2, 3. [Myrmeciza] immaculata Sclater and Salvin, Nom. Av. Neotr., 

 1873, 74. 



Myrmeciza intermedia Cherrie, Proc. U. S. Nat. Mus., xiv, no. 355, Sept. 4, 1891, 

 345 (Sipurio, Talamanca, Costa Rica; coll. U. S. Nat. Mus.). 



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

 227, part (Los Sabalos, Nicaragua; Pacuare, Angostura, La Balsa, Jimenez, 

 and Carrillo, Costa Rica; Lion Hill and Chepo, Panama).— Richmond, Proc. 

 U. S. Nat. Mus., xvi, 1893, 502 (Rio Escondido, Nicaragua; habits).— 

 Bangs, Proc. New Engl. Zool. Club, ii, 1900, 25 (Loma del Leon, Panamd). 



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



Myrmelastes occidentalis intermedius Carriker, Ann. Carnegie Mus., v, no. 1, 

 Oct. 1, 1908, 10, in text. 



« Fourteen specimens. 



Locality. 



Six adult males from eastern PanamA 



Ten adult males from eastern Costa Rica (8) and Nicaragua (2). . 



Four adult females from eastern Panamfi. 



Ten adult females from eastern Costa Rica (8) and Nicaragua (2). 



Wing. 



67.4 

 67.4 



C6.6 

 06.3 



47.2 

 46.5 



45.4 

 45.2 



Cul- 

 men. 



19.4 

 20.6 



20.1 

 20.1 



Tar- 

 sus. 



28.4 

 28.1 



27.9 

 28.5 



Middle 

 toe. 



18 

 17.9 



