1917;] Chapinan; • Distribution of Bird-life in Colombia. 333 



Central American specimens reveals no constant color differences. In the 

 former the white border at the base of the bill is usually wider, and the bill 

 averages longer, but these characters are not always diagnostic and the 

 South American form is, in my opinion, barely worthy of recognition. 

 Puerto Valdivia, 6; Puerto Berrio, 2; Malena, 3; west of Honda, 3. 



(1552) Pteroglossus sanguineus Gould. 



Pteroglossus sanguineus Gould, Mon Ramph., 2nd- ed. 1854, pi. 21, upper figure 

 (no locality; I suggest San Jos6, w. Col.). 



Ptet%glossus erythropygius Cass., Proc. Acad. N. S. Phila., 1860, p. 136 (R. 

 Truandb). 



Pteroglossus erythropygius sanguineMsHBLLM., P. Z. S., 1911, p. 1201 (Noanamd,). 



A common species in the Tropical Zone of the Pacific coast. Our speci- 

 mens show no indication of intergradation with P. erythropygius, of which 

 I have seven specimens from western Ecuador, including two from Esme- 

 raldas. 



Salaqui, 1; Alto Bonito, 6; Bagado, 1; Baudo, 2; Novita, 1; Noanama, 

 1; San Jos^, 2; Los Cisneros, 2; Barbacoas, 5; Buenavista, Narino, 1. 



(1556) Pteroglossus flavirostris flavirostris Fraser. 



Pteroglossus flavirostris Fraseb, P. Z. S., 1840, p. 61 ("Rio Janeiro"; Berlepsch 

 and Hartert substitute Rio Solimoes, Brazil.) 



Inhabits the Tropical Zone at the eastern base of the Andes in Amazo- 

 nian Colombia. A specimen from Mt. Duida agrees with four from La 

 Morelia and Florencia and also one from La Union on the Caura, Vene- 

 zuela. 



La Morelia, 3; Florencia, 2. 



(1559) Pteroglossus humboldti Wagl. 

 Pteroglossus humboldti Wagl., Syst. Av. Pter., 1827, sp. 4 ("Brasilia"). 



Two males from La Morelia agree in color with one from Pebas, Peru, 

 but are somewhat smaller (wing, 115 and 121 mm. as compared with 127 

 mm.). 



La Morelia, 2. 



