TWO NEW SUBSPECIES OF BIRDS FROM PANAMA 

 By E. W. nelson 



While working^ on the Smithsonian Biolog^ical Survey of the 

 Canal Zone,^ Mr. E. A. Goldman of the Biological Survey, United 

 States Department of Agriculture, collected specimens of two 

 undescribed subspecies of birds which are characterized below. 



HYLOMANES MOMOTULA OBSCURUS subsp. nov. 



Panama Pigmy Motmol. 



Type No. 229477, adult female, U. S. National Museum, Bio- 

 logical Survey Collection, from Cerro Brujo, Panama ; collected 

 by E. A. Goldman, June 7, 191 1. (Original number 15049.) 



Subspecific characters. — Size same as in typical momotula, but col- 

 ors generally darker ; the back and rump parrot green of Ridgway ; 

 outside of wings and top of tail olive green ; breast and sides of 

 neck and body darker, more olive, especially along flanks ; bend 

 of wing olive brownish and under wing coverts darker bulfy. 



PACHYSYLVIA OCHRACEICEPS BREVIPENNIS subsp. nov. 



Panama Pachysylvia. 



Type No. 229476, adult male, U. S. National Museum. Bio- 

 logical Survey Collection, from Lion Hill, Canal Zone: collected 

 by E. A. Goldman, May i, 191 1. (Original number 14686.) 



StibspecUic characters.— 'Nearest pallidipectns, but with much 

 shorter wings and tail ; forehead and crown similarly tawny, but 

 rest of upper parts of body from nape to upper tail coverts much 

 more olive greenish; middle of back, scapulars and wing coverts 

 dull olive brown, with much less russet than in either of the other 

 forms ; under parts of body from breast to under tail coverts pale, 

 dingy, greenish yellow, with scarcely a trace of the ochraceous 

 brown suffusion so marked in ochraceiceps zxi^ pallidipectvs. 



Measurements oftype.—Wmg,, 53 mm. ; tail, 40 mm. ; tarsus, 17 

 mm. ; culm en, 13 mm. 



Remarks.— The great difference in length of wing and tail between 

 the present form and the other subspecies, combined with the color 

 differences, are almost sufficient to warrant giving this bird specific 

 rank. One pair, shot on May i , were the only specimens taken. 



1 This paper is the second dealing with the results of the Smithsonian Bio- 

 logical Survey of the Canal Zone. 



Smithsonian Miscellaneous Collections Vol. 56, No. 22 



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