332 Field Museum of Natural History — Zoology, Vol. XIII. 



Curucujus melanurus melanurus Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 

 191 1, p. 743, in key; Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, 

 p. 317 (Florencia, Colombia); Bangs and Penard, Bull. Mus. Comp. Zool., 

 LXII, No. 2, 1918, p. 60 (Rijsdijkweg, Surinam). 



Range : Guiana and northern Brazil to Colombia and Ecuador. 

 4: British Guiana. 



*Curucujus melanurus macrounis {Gould). Large-tailed Trogon. 



Trogon macroura Gould, Mon. Trogon., ed. i, 1838, pi. 17 and text ("Mexique," 



Caracas, Venezuela)." 

 Trogon macrurus Gould, Mon. Trogon., ed. 2, 1875, pi. 30 and text; Grant, Cat. 



Bds. Brit. Mus., XVII, 1892, p. 474. 

 Trogon melanurus macrurus Bangs, Proc. N. E. Zool. Club, II, 1900, p. 19 



(Panama). 

 Curucujus melanurus macrourus RiDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 



191 1, p. 747; Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 191 7, p. 318; 



(Salaqui; Rio Atrato, Colombia). 



Range: Northern Colombia and eastern Panama. 

 2 : Panama. 



*Curucujus massena massena (Gould). Massena Trogon. 



Trogon massena Gould, Mon. Trogon., ed. i, 1838, pi. 16 and text (Guatemala), 



Grant, Cat. Bds. Brit. Mus., XVII, 1892, p. 474; Salvin and Godman, Biol. 



Centr.-Am., Aves, II, 1896, p. 503; Ferry, Field Mus. Nat. Hist., Orn. Ser. 



I, 1910, p. 265 (Guayabo, Costa Rica). 

 Troctes hoffmanni Cabanis and Heine, Mus. Hein., IV, 1863, p. 204, footnote 



(Costa Rica). 

 Curucujus massena Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 1911, p. 744; 



Stone, Proc. Acad. Nat. Sci. Phila., 1918, p. 257 (Panama Canal Zone). 



Range: Southeastern Mexico (States of Vera Cruz, Oaxaca, etc.) 

 southward through Guatemala, British Honduras, Honduras, Nicaragua 

 and Costa Rica to eastern Panama; northwestern Colombia? 



7 : Mexico (Vera Cruz) i ; Guatemala (Los Amates) 2 ; Nicaragua 

 (San Emilis) i; Costa Rica (Guayabo i, "Costa Rica" 2). 



Curucujus massena australis Chapman.^ Southern Massena Tro- 

 gon. 



Curucujus massena australis Chapman, Bull. Am. Mus. Nat. Hist., XXXIV, 

 1915. P- 384 (Barbacoas, Colombia); Id., XXXVI, 1917, p. 318 (Alto Bonito; 

 Bagado; Barbacoas; La Frijola, Colombia). 



Trogon massena Hellmayr, Proc. Zool. Soc. Lond., 191 1, p. 1193 (Truando; 

 Delta of the Atrato, western Colombia). 



» I propose to substitute Rio Atrato, northern Colombia. 



*> Curucujus massena australis Chapman: Similar to C. m. massena, but smaller; 

 male with exposed upper surface of the inner rectrices bluish green (instead of bronze 

 green), somewhat as in C. melanurus; female decidedly darker gray. 



