NO. 3 NEW BIRDS FROM PANAMA AND VICINITY — -NELSON 21 



yellow about like chin and throat ; in type of eximius the under parts 

 are a nearly uniformly darker greenish than in the present form. 



Measurements of type of eximius (sex?). — Wing, 75; tail, 48.5; 

 culmen, 19; tarsus, 21. 



Measurements of type of mutabilis (ad. J) — Wing - , yo ; tail, 44; 

 culmen, 17.5 ; tarsus, 21.5. Owing- to the sex of the type of eximius 

 being unknown it is impossible to decide whether the differences in 

 size shown in these measurements are due to sex or not. 



Remarks. — Through the courtesy of Mr. Witmer Stone, Curator 

 of Birds in the Philadelphia Academy of Natural Sciences, I have 

 been able to make direct comparison with the type of eximius. It 

 was formerly mounted and shows some signs of fading, but the re- 

 tention of the yellow practically unchanged on the superciliary stripe 

 and chin and its absence on the abdomen and under tail coverts indi- 

 cate that it never existed on these last named parts, and thus differs 

 strongly from the present form in this character as well as in the 

 restricted area of yellow on the chin and throat. The back of the 

 type of mutabilis is more bluish green than in the type of eximius 

 but this may be due to fading in the latter. From the foregoing it 

 appears that notwithstanding any fading that may have occurred in 

 the type of eximius the present form differs from it sufficiently to be 

 recognized as a geographic race. The type is the only specimen 

 seen by Goldman and these birds are apparently scarce in eastern 

 Panama. 



BASILEUTERUS MELANOGENYS IGNOTUS, subsp. nov. 



Mount Pirri Warbler 



Type. — No. 232972, adult female, U. S. National Museum, Bio- 

 logical Survey Collection, from Mount Pirri (at 5,200 feet elevation), 

 near head of Rio Limon, eastern Panama ; collected April 18, 1912, 

 by E. A. Goldman (collector's number 15539). 



Distribution. — Known from type locality only. 



Subspccific characters. — In general similar to typical meianogenys, 

 but superciliary line pale greenish yellow and broader in front where 

 occupying most of forehead ; lores black but remainder of sides of 

 head and chin pale greenish yellow (like under side of body) finely 

 flecked and mottled with black, the black heaviest on malar region 

 and immediately below eyes ; back distinctly greener and under parts 

 with a stronger greenish yellow suffusion ; size smaller with pro- 

 portionately larger bill. 



