Vol. XXVI, pp. 67-68 March 22, 1913 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 





A NEW SUBSPECIES OF NUN BIRD FROM PANAMA. 



BY E. W. NELSON. 



Study of the birds collected during 1912 in eastern Panama 

 by E. A. Goldman, while engaged on the Smithsonian Biological 

 Survey of the Canal Zone, continues to reveal forms previously 

 unknown. I am indebted to Mr. Robert Ridgway, Curator of 

 Birds of the U. S. National Museum, for directing my attention 

 to the present subspecies. 



Monasa pallescens minor subsp. now 



MARRAGAXTI NIX BIRD. 



Type No. 232,915, adult male, U. S. National Museum (Biological Sur- 

 vey Collection) from Marraganti, eastern Panama, collected April 5, 1912, 

 by E. A. Goldman. 



Distribution. — Known only from type locality. 



Subspecific characters. — Differs from typical pallescens in its smaller 

 size and darker, more plumbeous color. 



Measurements of type. — Wing, 131.5 millimeters; tail, 119.5; culmen, 

 36.5; tarsus, 22.5. 



Remarks. — This form has the bend of the wing and the upper and under 

 wing-coverts much paler than the back, but a little darker and more plumb- 

 eous than in typical pallescens. The dark area of head and neck, as in 

 the latter, merges gradually into the color of the body, and has a mixture 

 of dark gray feathers scattered through the dusky, especially on top of 

 head and neck. < roldman collected two of these birds during a brief slop 

 at Marraganti in the lowlands, on his way out from Mount Pirri. 



15— Pitoc. Biol. Soc. Wash., Vol.'XXVI, l'.ti:;. (67) 



