PLATE 20 



Ardeae and Ciconiae 



All figures X 100 



Fig. 20. Ardea herodias. 



a. Distal barbule from inner vane of remex. 



6. Proximal barbule from same. 



c. Distal barbule from outer vane of remex. 



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



e. Distal barbule from back feather, basal third. 

 /. Proximal barbule from same. 



Fig. 21. Butorides virescens. 



a. Distal barbule from outer vane of remex. 



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



Fig. 22. Egretta candidissima. 



a. Barbule from "aigrette." 



Fig. 23. Mycteria americana. 



a. Distal barbule from inner vane of remex. 



6. Proximal barbule from same. 



c. Distal barbule from outer vane of remex. 



d. Distal barbule from breast feather. 



Fig. 24. Leptoptilus duhius. 



a. Distal barbule from inner vane of remex. 



6. Distal barbule from outer vane of remex. 



Fig. 25. Plegadis guarauna. 



a. Distal barbule from inner vane of remex. 



Fig. 26. Guara (Eudocimus) ruber. 



a. Distal barbule from scarlet back feather. 



Fig. 27. Ajaja ajaja. 



a. Distal barbule from back feather. 



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