n8 



MORPHOLOGICAL TYPES 



Fig. 54. — View of a portion of a feather to show the structure and relations 

 of the barbs and barbules. 



Two adjacent barbs (b) are represented cut off from the stalk. The 

 barbs bear distal barbules (db) on the side away from the base of the feather, 

 and proximal barbules (pb) on the opposite side. The hooks or hamuli (h) 

 on the distal barbules of one barb are attached to the groove on the edge of 

 the proximal barbules of the adjacent (distal) barb. 



