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BIRDS OF THE REPUBLIC OF PANAMA PART 3 



rest of the dorsal surface darker brown. On the lower surface the 

 throat and the markings on the foreneck and breast are darker buff. 



The Spanish name in the heading above is the one by which this 

 species is known in Venezuela. 



The action of Vaurie (Classification Ovenbirds, 1971, pp. 13, 34) 



Figure 7. — Spotted barbtail, fafao punteado, Prcmnoplex brunnescens. 



in merging the genus Prernnoplex with Margarornis needs further 

 study. In the wing not only are the primary feathers shorter, but 

 this same distinction holds in the supporting skeleton in the bones 

 of humerus, forearm, and hand, these being definitely weaker in 

 Prcmnoplex than in Margarornis rubiginosus and M. sqitamigcr. 

 Body size also is less. It seems appropriate to continue use of 

 Premnoplex as a separate genus pending further information. 



