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Bulletin American Museum of Natural History. [Vol. XXXVI, 



the difference between the forms concerned is in this respect so marked that 

 one can not well refer the Puerto Valdivia birds to the large-billed Pacific 

 coast race. While it is true,- therefore, that they are not typical of minor 

 they certainly do not differ from it sufficiently to warrant subspecific sepa- 

 ration, and quite as certainly they could not be referred to platyrhynchus. 



Of minor I have four topotypical specimens from the Canal Zone, with 

 which five specimens from Tapaliza and Tacarcuna essentially agree. 



On purely faunal grounds the latter should be referable to E. p. suboles 

 Nels., but none of our east Panama specimens has as large a bill as Mr. 

 Nelson's measurements show that his type and only specimen of suboles 

 possesses. Either, therefore, the specimen on which suboles is based has 

 an abnormally large bill or the race is remarkably localized, and in view of 

 the fact that the locality whence the type comes is in the Tropical Zone, I 

 incline to the former theory. 



Puerto Valdivia, 4. 



1 Ex. Hartert, Nov. Zool., V, 1898, p. 498, 1912. 



2 Ex. Nelson, Smith. Misc. Coll., 60, 1912, p. 6. 



