1917.] Chapman, Distribution of Bird-life in Colombia. 377 



lack topotypes of intermedia, but there is small probability of there being 

 any difference between La Playa and Cartagena birds. In any event, it 

 is far from likely that specimens from Cartagena would resemble those from 

 Santa Marta rather than those from the intervening locality of La Playa. 



It is true that Cabanis describes the female of intermedia as having the 

 breast spotted, but since he had a specimen or specimens from Venezuela 

 as well as Cartagena it is possible he may have described a female from 

 Venezuela under the belief that it belonged to the same species as that 

 found at Cartagena. However this may be, his name is applicable only 

 to the Cartagena form, which in view of our recently acquired specimens 

 from La Playa, I believe to belong to the species in which the female has 

 no spots on the breast. It therefore most nearly resembles true grisea of 

 the Guianas in which the female is more washed with ochraceous-rufous 

 below than in intermedia, but, like the latter, is without spots on the un- 

 derparts. 



Apparently these two forms are entirely cut off from each other by 

 others in which the female is conspicuously spotted below. The Orinoco 

 form is orenocensis of Hellmayr, and seems to be specifically distinct. The 

 form occupying the Caribbean coast region from Santa Marta to north- 

 eastern Venezuela, to which the name intermedia has been commonly ap- 

 plied, should apparently bear the name of cano-fumosa Cherrie. I have 

 not seen Cherrie's type, but in describing cano-fumosa (Bull. Bklyn. Inst. 

 Arts & Sciences, 1909, p. 388) from Las Barrancas on the lower Orinoco, 

 this author remarks : " Specimens in the American Museum collection from 

 Santa Marta, Colombia, San Antonio and Cumanacoa, Bermudez, Vene- 

 zuela, all seem to belong to this form." Hellmayr and Seilern (Archiv. 

 fiir Naturg. 1912, p. 126) also share this view, though they fall into the 

 common error of using the name intermedia for the species in which the 

 female has the breast streaked. 



The specimens in our museum, including thirty-four females of cano- 

 fumosa from Bonda, Santa Marta; Puerto Cabello, San Antonio, and 

 Cristobal Colon, Venezuela, and six males and six females of orenocensis 

 from Maripa on the Orinoco, lead me to believe that these forms are spe- 

 cifically distinct from each other and from grisea on the east and intermedia 

 on the west. The two latter, although most closely related of any in the 

 group, would therefore be separated by a wide area occupied with repre- 

 sentative but not intergrading races. The case is an exceptionally interest- 

 ing one and deserves a study which neither my time nor material wUl permit 

 me to give it. 



La Playa, Icf, 4 9 9 ; Calamar, 2 c? cf ; Honda, 8 cf cf , 4 9 9 ; Chico- 

 ral, 5 d^(^,3 9 9. 



