324 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. XIII. 



Trogonurus collaris RIDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 1911, p. 763, in 

 key; CHAPMAN, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, p. 315 (many 

 localities in Colombia). 



Range: Guiana, Trinidad, Tobago, Venezuela, Colombia, east 

 Ecuador, east Peru and Bolivia. 



8: Colombia (Antioquia i, "Colombia" 2); Venezuela (Maracay) 

 i; Tobago 4. 



Trogonurus collaris virginalis* (Cabanis and Heine). PALLATANGA 

 COLLARED TROGON. 



Trogon virginalis CABANIS and HEINE, Mus. Hein., IV, 1863, p. 173 (Pallatanga, 

 western Ecuador); SALVADOR! and FESTA, Boll. Mus. Torino, XV, 1900, 

 p. 17 (Rio Peripa, Ecuador). 



T[rogon] curucui virginalis HELLMAYR, Nov. Zool., XIII, 1906, p. 41, in text. 



Range: Western Ecuador. 

 *Trogonums elegans (Gould). ELEGANT TROGON. 



Trogon elegans GOULD, Proc. Zool. Soc. Lond., II, 1834, p. 26 (Guatemala or 

 Mexico); SALVIN, Ibis, 1866, p. 194; Id., 1872, p. 313 (Nicaragua); GRANT, 

 Cat. Bds. Brit. Mus., XVII, 1892, p. 449; SALVIN and GODMAN, Biol. Centr.- 

 Am., Aves, II, 1896, p. 489; DEARBORN, Field Mus. Nat. Hist., Orn. Ser., I, 

 1907, p. 88 (Guatemala); CARRIKER, Ann. Carnegie Mus., VI, 1910, p. 557 

 (Costa Rica). 



Trogonurus elegans RIDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 1911, p. 773. 



Range : Pacific slope of Central America from Guatemala to Costa 

 Rica. 



i: Guatemala (Zacapa). 



*Trogonurus ambiguus ambiguus (Gould). COPPERY-TAILED TROGON. 



Trogon ambiguus GOULD, Proc. Zool. Soc. Lond., 1835, p. 30 (northern Mexico); 



Id., Mon. Trogon., ed. I, 1838, pi. 4 and text; Id., ed. 2, 1875, pi. 8 and text; 



GRANT, Cat. Bds. Brit. Mus., XVII, 1892, p. 451, part; Swarth, Pacific 



Coast Avi., No. 10, 1914, p. 32 (Arizona records). 

 Trogonurus ambiguus ambiguus RIDGWAY, Bull. U. S. Nat. Mus., No. 50, V, 



1911, p. 768. 



Range: Highlands of Mexico to southern Arizona and Rio Grande 

 Valley, Texas. 



8: Mexico (San Luis Potosi 4, Tampico i, Tamaulipas 2, Arizona 

 Cochise Co.) i. 



Trogonurus ambiguus goldmani (Nelson). GOLDMAN'S TROGON. 



Trogon ambiguus goldmani NELSON, Proc. Biol. Soc. Wash., XII, 1898, p. 8 

 (Maria Madre Island, Tres Marias Group, west of Mexico). 



According to Salvadori and Festa and Hellmayr this form can be readily dis- 

 tinguished by having the dark band on the tail larger than the white band. The 

 emale has the chin blackish. I have not seen specimens of this bird. 



