PLATE 21 



Anserii'ormes and Phoenicopteri 



All figures, except 28a and b, X 100 



Fig. 28. Anas platyrhynchos. 



a. Basal portion of barb from inner vane of primary. X 8. 



6. Portion of ventral part of basal region of barb, from outer vane 

 of primary. X 120. 



c. Distal barbule from inner vane of remex. 



d. Proximal barbule from same. 



e. Distal barbule from outer vane of remex. 



/. Proximal barbule from same, distal third of barb. 



g. Distal barbule from outer vane of tail feather. 



h. Proximal barbule from same, distal third of barb. 



i. Distal barbule from outer vane of violet speculum feather. 



Fig. 29. Nettion carolinense. 



a. Distal barbule from outer vane of primary. 



&. Distal barbule from outer vane of green speculum feather. 



c. Proximal barbule from same, distal third of barb. 



Fig. 30. Mareca americana. 



a. Distal barbule from outer velvety black vane of scapular feather. 



Fig. 31. Chauna cristata. 



a. Distal barbule from outer vane of remex. 



6. Proximal barbule from same. 



Fig. 32. Phoenicopteriis riiber. 



a. Distal barbule from inner vane of remex. 



&. Proximal barbule from outer vane of remex, distal third of barb. 



c. Proximal barbule from scapular feather, distal half of barb. 



[414] 



