652 Annals of the Carnegie Museum. 



Sittosomus olivaceus Sclater, Cat. Birds Brit. Mus., XV, 1890, 119 (Tempate, 

 Costa Rica [Arce]). — Salvin and Godman, Biol. Centr.-Am., Aves, II, 

 1 89 1, 176 (Costa Rican references). 



Sittasomus sylvioides Lafresnaye, Rev. Zool., 1849, 331 (Mexico). — Law- 

 rence, Ann. Lye. N. Y., IX, 1868, 106 (Dota [J. Carmiol]). — Frantzius, 

 Jour, fur Orn., 1869, 304 (Costa Rica). — Ridgway, Proc. U. S. Nat. Mus., 

 XIV, 1891, 509 (Costa Rica). — Underwood, Ibis, 1896, 440 (Miravalles). 



U. S. Nat. Museum : Guayabo and Bonilla (Ridgway and Zeledon), 



Santa Maria de Dota (Basulto), Monte Redondo (Alfaro), Cedral 



de Asseri (Underwood). 

 Bangs Collection : Bolson, Tenorio, Cedral de Asseri, Coralillo, Cerro 



de Santa Maria (Underwood). 

 Carnegie Museum : Miravalles (Carriker). Four skins. 



The range of this bird covers the whole of the highlands, from 

 about 2,000 feet up to 5,000 feet, and the Pacific slope from the 

 Gulf of Nicoya northward, down to at least 1,000 feet, perhaps lower. 

 It is found in the heavy forest and has habits very similar to Gfypho- 

 rhynchus cuneatus. 



391. Deconychura typica Cherrie. 



Deconychura typica Cherrie, Proc. U. S. Nat. Mus., XIV, 1891, 339 (Pozo Azul 

 de Pirris, Sept. 7, 1889 [J. Zeledon]; coll. U. S. Nat. Mus.); Expl. Zool. en 

 C. R., 1891-2, 1893, 39 (Palmar, one specimen). 



U. S. Nat. Museum : Pozo Pital (Cherrie), Pozo Azul de Pirris (type?). 



Bangs Collection : Pozo Azul de Pirris, and El General de Terraba 



(Underwood). Two skins. 

 Carnegie Museum : El Pozo de Terraba (Carriker). Three skins. 



This peculiar type of tree-creeper is found only in southwestern 

 Costa Rica, from Pozo Azul southward, and in western Chiriqui, from 

 sea-level up to not more than 1,000 feet, and most abundantly below 

 500 feet. I found it to be an inhabitant of the heavy dark forest along 

 the banks of the lower portion of the Rio Grande de Terraba, solitary, 

 and resembling in its habits Xiphorhynchus or Picolaptes. 



392. Xiphorhynchus nanus costaricensis (Ridgway). 



Dendrornis nana Lawrence, Ibis, 1863, 181 (Lion Hill, Panama). — Salvin 

 and Godman, Biol. Centr.-Am., Aves, II, 1891, 180, part (Costa Rican refer- 

 ences). — Underwood, Ibis, 1896, 440 (Miravalles, rare). 



Dendrornis pardalotus Lawrence, Ann. Lye. N. Y., IX, 1868, 107 (Tucurriqui, 

 Costa Rica [Carmiol]). — Frantzius, Jour, fur Orn., 1869, 305 (Costa Rica). 



Dendrornis susurrans Boucard, P. Z. S., 1878, 60 (San Carlos). — Sclatkr, 

 Cat. Birds Brit. Mus., XV, 1890, 133, part (Angostura [Carmiol]). 



