BIRDS OF NORTH AND MIDDLE AMERICA. 



469 



exposed culmen. 16.51; depth of bill at base, 8.38; tarsus, 27.94; mid- 

 dle toe, 18.29.1 



Costa Rica to Peru and Venezuela. 



Tanagra assimilis BoiSiioyEAV, Rev. Zool., 1840, 67 (Colombia). 



-l.[rTemon] ass imilis Gray, Gen. Birds, ii, 1844, 361. 



[Buarremonl asslmilis Bonaparte, Consp. Av., i, 1850, 484. — Sclater and Salvin, 

 Nom. Av. Neotr., 1873, 24. 



B.luarremon] assimilis Cabasis, Mus. Hein., i, 1851, 141 ("Mexico"). 



Buarremon assimilis Sclater, Proc. Zool. See. Lond., 1855, 155 (Bogota, Colom- 

 bia); 1856, 85 (monogr. ; Bogota; Quito, Ecuador); 1859, 441 (Eio Napo, e. 

 Ecuador); 1860, 76 (Lloa, centr. Ecuador); Synop. Av. Tanagr., 1856, 23 

 (monogr.); Cat. Am. Birds, 1862, 90 (Venezuela; Bogota; Pallatanga, w. 

 Ecuador); Cat. Birds Brit. Mus., xi, 1886, 257 (Venezuela; Bogota, and 

 Medellin, prov. Antioquia, Colombia; Sical and Quito, Ecuador; Cutervo 

 and Callacate, Peru). — Sclater and Salvin, Proc. Zool. Soc. Lond., 1875, 

 234 (Merida, Venezuela); 1879, 504 (Antioquia, Colombia).— Salvin, Ibis, 

 1874, 308 (Costa Rica; crit.); Cat. Strickland Coll., 1882, 197 (Colombia).— 

 Taczanowski, Proc. Zool. Soc. Lond., 1880, 196 (n. Peru) ; 1882,115 (n. e. Peru) ; 

 Orn. du Perou, ii, 1885, 531. — Berlepsch and Taczanowski, Proc. Zool. Soc. 

 Lond., 1884, 291 (Cechce, w. Ecuador). — Salvin and Godman, Biol. Centr.- 

 Am., Aves, i, 1884, 318. — Taczanowski and Berlepsch, Proc. Zool. Soc, 

 1885, 84 (San Rafael and Bancs, centr. Ecuador). — Zeledon, Cat. Aves de 

 Costa Rica, 1882, 8; An. Mus. Nac. Costa Rica, i, 1887, 110 (Ecuador).— 

 Allen, Bull. Am. Mus. N. H., ii, 1889, 71 (Quito).— Cherrie, Expl. Zool. 

 Costa Rica, 1893, 26 (Boruca, alt. 530 m., and Buenos Aires, alt. 300 m., s. 

 Costa Rica). — Salvadori and Festa, Boll. Mus. Zool., etc., Torino, xv, 1899, 

 19 (Pun, e. Ecuador; Nanegal, Niebli, and near Corazon, w. Ecuador). — 

 Allen, Bull. Am. Mus. N. H., xiii, 1900, 167 (Bonda, prov. Santa Marta, 

 Colombia; descr. young). 



Buarremon assimilisf Lawrence, Ann. Lye. N. Y., ix, 1868, 101 (Guiatil, Costa 

 Rica; crit.). — Frantzius, Journ. fiir Orn., 1869, 300 (Costa Rica). — Salvin, 

 Ibis, 1874, 308 (Costa Rica; crit.). 



Genus PSELLIOPHORUS Ridgway. 



Pselliophorus- Ridgway, Auk, xv, July, 1898 (pub. May 14, 1898), 225. 

 Tachyphoims tibialis Lawrence. ) 



(Type, 



Rather small terrestrial Frin^illidte related to the genus Buarremon., 

 but with mandibular tomium destitute of distinct subbasal tooth; tail 

 longer than wing, much rounded, composed of broad but somewhat 

 acuminate rectrices with semi-decomposed webs; plumage of forehead 



^One specimen, from Guiatil, Costa^Rica. 



Of the twelve adult specimens examined only three are sexed. 

 according to locality as follows: 



They average 



'From ^eXXiocpopoi; rpeXXiov = armilla. 



