PLATE 37 



Types of Down Barbules, continued 



Entire barbules drawn X 40; portions of barbules marked by parenthesis 

 drawn enlarged, X 285, 



Fig. 110. Momotus lessoni. 



a. Entire barbule. 6. basal portion, c. terminal portion. 



Fig. 111. Hydrocorax mindanensis. 



a. Entire barbule. 6. basal portion, c. terminal portion. 



Fig. 112. Eugenes fulgens. 



a. Entire barbule from near base of barb. 

 6. Basal portion, c. distal portion. 



Fig. 113. Rhamphastus ariel. 



a. Entire barbule from near base of barb. 

 6. Basal portion, c. terminal portion. 



Fig. 114. Pipilo maculatus. 



a. Entire barbule from near base of basal barb. 

 6. Basal portion, c. terminal portion. 



Fig. 115. Corvus corax. 



a. Entire barbule from near base of basal barb. 

 6. Basal portion. 



[446] 



