BIRDS OF NORTH AND MIDDLE AMERICA. 21 



Cascajal, Code), and southward through Colombia and Ecuador to 

 northern Peru. 



Cymbilanius lineatus (not Lanius linmtus Leach) Lawrence, Ann. Lye. N. Y., 

 vii, 1862, 293 (Lion Hill, Panamd); ix, 1868, 107 (Angostura, Costa 

 Rica). — ScLATER and Salvin, Proc. Zool. Soc. Lond., 1864, 355 (Lion Hill; 

 crit.). — Salvin, Free. Zool. Soc. Lond., 1867, 144 (Santiago and Santa F6 de 

 Veriigua, Panamd,); 1870, 194 (Mina de Chorcha, Calovevora, and Calobre, 

 Panamd). — Frantzius, Journ. fiir Orn., 1869, 305 (Costa Rica). — Salvin and 

 GoDMAN, Biol. Centr. Am., Aves, ii, 1892, 194, part (excl. South Am. locali- 

 ties and references). 



(J)Cymbilanius lineatus Sclater, Proc. Zool. Soc. Lond., 1854, 112 (Quijos, 

 Ecuador); 1858, 65 (e. Ecuador), 206, part (monogr.). — Sclater and Salvin, 

 Proc. Zool. Soc. Lond., 18G6, 566 (Rio Ucayali, e. Peru); 1873, 272 (Nauta 

 and Pebas, e. Peru); 1879, 524 (Remedies and Nechi, Antioquia, Colom- 

 bia). — Taczanovv.ski, Proc. Zool. Soc. Lond., 1874, 529 (Monterico, centr. 

 Peru); Orn. du Perou, ii 1884, 1.— Allen, Bull. Am. Mus., ii, 1889, 74 (Rio 

 Napo, e. Ecuador). — Hartert, Novit. Zool., v, 1898, 492 (Cachavi, n. w. 

 Ecuad6r). — Salvadori and Festa, Boll. Mus. Zool., etc., Torino, xv, no. 362, 

 1899, 27 (Valle del Rio Santiago, e. Ecuador). — Berlepsch and Stolzmann, 

 Proc. Zool. Soc. Lond., 1902, 59 (Monterico, Peru). 



[Cymbilanius] lineatiLs Sclater and Salvin, Nom. Av. Neotr., 1873, 69, part. — 

 Sharpe, Hand-list, iii, 1901, 9, part. 



Cymbilanius lineatus fasciatus Ridgway, Proc. U. S. Nat. Mus., vi, no. 26, April 

 11, 1884, 404 (Los Sdbalos, Nicaragua; coll. U. S. Nat. Mus.), 415 (Rio Siicio, 

 Costa Rica). — Zeledon, An. Mus. Nac. Costa Rica, 1887, 114 (Jimenez, Costa 

 Rica; Panamd).— Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 498, 499 (Rio 

 Escondido, Nicaragua; crit.). — Bangs, Proc. New Engl. Zool. Club, ii, 1900, 

 24 (Loma del Leon, Panama). — Carriker, Ann. Carnegie Mus., vi, 1910, 600 

 (Caribbean lowlands and foothills Costa Rica; habits). — Ferry, Pub. 146, 

 Field Mus. N. H., orn. ser., i, no. 6, 1910, 271 (Guayabo, Costa Rica). 



Cymbilanius lineatus (fasciatus) Ridgway, Proc. U. S. Nat. Mus., vi, 1883, 415 

 (Rio Sucio, Costa Rica). 



(?) Thamnophilus nigricristatus (not of Lawrence) Boucard, Proc. Zool. Soc. 

 Lond., 1878, 60 (San Carlos, Costa Rica). 



Genus THAMNISTES Sclater and Salvin. 



Thamnistes Sclater and Salvin, Proc. Zool. Soc. Lond., 1860, 299. (Type, T. 

 anabatinus Sclater and Salvin.) 



Medium-sized or rather small Formicariidse (length about 130 

 mm.) with rather large, stout, and strongly hooked bill, small, cir- 

 cular nostrils and coloration plain brown above with wings and tail 

 more rufescent (adult male with a concealed dorsal patch of ochra- 

 ceous or tawny), the under parts plam olive-buffy or yellowish. 



Bill a little shorter than head, rather stout, strongly hooked, its 

 width at frontal antiae greater than its depth at same point and equal 

 to about half the distance from nostril to tip of maxilla; culmen very 

 slightly curved from base to near tip, where strongly decurved, the 

 tip of maxilla conspicuously uncinate; maxillary tomium nearly 

 straight, deeply notched subterminally; mandible subfalcate (slightly 

 recurved terminally), the tomium nearly straight, distinctly toothed 



