402 Annals of the Carnegie Museum. 



Leptoptila riotlei Lawrence, Ann. Lye. N. V., IX, 1868, 137 (Navarro [J. 

 Cooper]). — Frantzius, Tourn. fiir Orn., 1869, 371. 



Engyptila verreauxi Nutting, Froc. U. S. Nat. Mus. , V, 1882, 408 (La Palma 

 de Nicoya). — Ridgway, Proc. U. S. Nat. Mus., V, 1882, 502 (Irazu [Nut- 

 ting])- — Zeledon, An. Mus. Nac. de C. R., I, 1887, 127 (Las Trojas, San 

 Mateo, San Jose, and Cartago). — Cherrie, Expl. Zool. en C. R., 1891-2, 

 J 893, 53 (Lagarto) ; Expl. Zool. Rio Naranjo, 1893, 7 (El Pozo del Pital) ; 

 Auk, JX, 1892, 329 (San Jose, tolerably common). 



U. S. Nat. Museum : Pigres (Ridgway). 



American Mus. Nat. History: San Jose (Underwood). 



Acad, of Nat. Sci. Philadelphia: Bebedero (Underwood). 



Bangs Collection: Pozo Azul, Bolson, San Jose (Underwood). 



Carnegie Museum : Bebedero, Miravalles, San Mateo, El Pozo de 



Terraba, Boruca, Buenos Aires (Carriker). Eight skins. 



Found only on the Pacific slope of the plateau region, from San 

 Jose westward, more abundantly at lower altitudes. Abundant all 

 over Nicoya and Guanacaste up to Nicaragua and in the Terraba Val- 

 ley. I found it quite common at Buenos Aires. It is very fond of 

 running along roads and paths, especially where they pass through 

 woodland. Like all the species of the genus it keeps near the ground 

 and is fond of thickets and second-growth woodland. 



33. Leptotila plumbeiceps Sclater and Salvin. 



Leptoptila plumbeiceps ScLATER and Salvin, P. Z. S., 1 868, 59 (Vera Paz in 

 Guatemala and Mexico). — Bangs, Proc. Biol. Soc. Wash., XXII, 1909, 29 

 (Bolson, Dec. 18-23, 1 9°7 [Underwood]). 



It is rather remarkable that this pigeon should be found in Costa 

 Rica, having never been recorded south of Guatemala and Honduras. 

 The specimens are typical plumbeiceps ■, agreeing with birds from Mexico. 

 There are two males collected by C. F. Underwood at Bolson, on the 

 Tempisque River, December 18 and 23, 1907. 



34. Leptotila cassini vinaceiventris (Ridgway). 



Engyptila vinaceiventris Ridgway, Pr. U. S. Nat. Mus., X, 1887, 583 (Truxillo, 

 Honduras [Townsend] ). 



Leptoptila cassini Lawrence, Ann. Lye. N. V., IX, 1868, 137 (San Jose [J. 

 Carmiol], Tucurriqui [Zeledon]). —Frantzius, Jour, fur Orn., 1869, 371 

 (Tucurriqui). — Boucard, P. Z. S., 1878, 43 (San Carlos). — Salvadori, 

 Cat. Birds Brit. Mus., XXI, 560 (Costa Rica). — Underwood, Ibis, 1896, 

 447 (Miravalles). — Salvin and Godman, Biol. Centr.-Am., Aves, III, 262 

 (Cartago and Carrillo [Underwood]). 



Leptotila cassini vinaceiventris Bangs, Proc. Biol. Soc. Wash., XIX, 102 

 (Miravalles and Juan Vinas [Underwood] ). 



