PICID^ — THE WOODPECKERS. 



549 



between the outer and inner anterior, the outer largest, instead of being 

 longest, and having the outer anterior intermediate between it and the 

 inner, the shorter bill, the gonys fully half the length of the commissure, 

 are additional distinctive features. 



Of Hylotomus there are several species in tropical America, all differing, 

 however, in transversely banded lower parts, while some have a broad white 



Hylotomus pileatus. 



scapular stripe ; in these features of coloration (but in these only, for the head 

 pattern is always much as in the H. pileatus) they resemble closely species 

 of Campephilns (C. guatemalensis, C. alhirostris, C. malhcrhei, etc.,) found in 

 the same region ; one {JI. scapularis, of Mexico) even has a whitish ivory- 

 like bill. They may all be distinguished from the species of Campcphilus, 

 however, by the generic differences. 



