(Córdova; Cobán, Guatemala); Cat. Birds Brit. Mus., xv, 1890, 115 (Córdova; Raxché, Cobán, Savana Grande, and Volcán de Agua, Guatemala; Calovévora, Cordillera de Tolé, and Santiago de Verágua, Panamá; Bogotá and Frontino, Colombia; Intaj and Sarayacu, Ecuadór; Ymimáguas, e. Peru; Capím R., lower Amazons; Bahia?). — Salvin and Sclater, Ibis, 1860, 35 (Cobán; crit.). — Sclater and Salvin, Proc. Zool. Soc. Lond., 1867, 574 (Capím R.; crit.), 750, 755 (Yurimaguas and Chyavetas, e. Peru); 1873, 269 (Yurimaguas, e. Peru). — {[sc|Salvin}}, Ibis, 1861, 143 (Raxché, Guatemala); Proc. Zool. Soc. Lond., 1867, 142 (Santiago and Cordillera de Tolé, Panamá; crit.); 1870, 191 (Calovévora, Panamá). — Sumichrast, Mem. Bost. Soc. N. H., i, 1869, 555 (tierra caliente of Vera Cruz, up to 1300 m.); La Naturaleza, v, 1881, 247 (Orizaba and Protrero, Vera Cruz). — Sanchez, Anal. Mus. Nac. Mex., i, 1877, 97 (Vera Cruz). — Taczanowski, Orn. du Pérou, ii, 1884, 115 (Yurimaguas). — Ridgway, Proc. U. S. Nat. Mus., xii, 1890, 25 (monogr.); xiv, 1891, 471 (Volcán de Puca, Honduras). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1891, 167. — Carriker, Ann. Carnegie Mus., vi, 1910, 645 (Costa Rica). — Chapman, Bull. Am. Mus. N. H., x, 1898, 32 (Jalapa). — Bangs, Proc. New Engl. Zool. Club, ii, 1900, 26 (Loma del León, Panamá). — Goeldi, Ibis, 1903, 499 (Capím R., n. e. Brazil).
- [Sclerurus] mexicanus Gray, Hand-list, i, 1869, 167, no. 2219. — Pelzeln, Orn. Bras., iv, Abth., 1870, 419. — Sclater and Salvin, Nom. Av. Neotr., 1873, 62. — Sharpe, Hand-list, iii, 1901, 72.
- (?) Sclerurtis rufigularis Pelzeln, Orn. Bras., ii Abth., 1869, 161 (Maribatanas; ex "Tinactor rufigularis, Natterer, Catal. msc.").[1]
- Sclerurus caudacutus (not Thamnophilus caudacutus Vieillot) Sclater and Salvin, Proc. Zool. Soc. Lond., 1879, 520 (Antioquía, Colombia). — Taczanowski, Orn. du Pérou, ii, 1884, 114.
SCLERURUS MEXICANUS PULLUS Bangs.
DUSKY SCLERURUS.
Similar to S. m. mexicanus but coloration much darker, the back, etc., dark sepia, the lower rump and upper tail-coverts deep vandyke to deep chocolate or walnut brown.
Adult male. - Length (skins), 146-160 (153); wing, 76.5-81 (78.7); tail, 56-57 (56.5); culmen, 21-24 (22.5); tarsus, 21-21.5 (21.2); middle toe, 18-19 (18.5).[2]
Adult female. — Length (skins), 146-156 (151); wing, 75-78 (76.5); tail, 50-54.5 (52.2); culmen, 20-21.5 (20.7); tarsus, 20-22 (21); middle toe, 18-19.5 (18.7).[2]
Caribbean slope of western Panamá (Boquete, Chiriquí) and Costa Rica (Cariblanco de Sarapiquí).
- Sclerurus mexicanus pullus Bangs, Proc. New Engl. Zool. Club, iii, Jan. 30, 1902, 45 (Boquete, Chiriquí, Panama, 5,000 ft.; coll. E. A. and O. Bangs).
