140 



hilled Woodpecker of the United States, Picus principalis, as the latter 

 does the Pic. Martins of Emope. Mr. Gould described it as the 

 Picus imperiams, Mas. Pic.ater, virescenti splendens ; crista elon- 

 gatd occipitali coccined ; maculd triangulari interscapulari, remi- 

 gibus secundariis, primariarianque (prater trium quatuorve exte- 

 riorum) rhachibus internis albis ; rostro ehurneo. 

 Foem. Paullo minor ; crista occipitali cum corpore concolore. 

 Longitudo maris, 2 ped. ; alcB (clausse), 1 pcd. j caudce, 10 unc. ; 

 tarsi, vix 2 unc. ; digiti externi postici, eadem ac tarsi. Ungues 

 validissimi, arcuati ; Rostrum exacts cuneiforme, a rictu ad 

 apicem 4 unc. long., ad basin 1 unc. latum. 

 This species is readily distinguishable from the Pic. principalis by 

 its much larger size ; by the length of its occipital crest, the pendent 

 silky feathers of which measure nearly 4 inches ; by the absence of 

 the white stripe which ornaments the neck of that bird ; and by the 

 bristles which cover its nostrils being black, whereas those of the Pic. 

 lyrincipalis are white. 



