PLATE 37 
TYPES OF DOWN BARBULES, continued 
Entire barbules drawn 40; portions of barbules marked by parenthesis 
drawn enlarged, 285. 
Fig. 110. 
Fig. 111. 
Fig. 112. 
Fig. 113. 
Fig. 114. 
Fig. 115. 
Momotus lessoni. 
Entire barbule. 6. basal portion. c. terminal portion. 
Hydrocorax mindanensis. 
Entire barbule. 0b. basal portion. c. terminal portion. 
Eugenes fulgens. 
Entire barbule from near base of barb. 
Basal portion. ec. distal portion. 
Rhamphastus ariel. 
Entire barbule from near base of barb. 
Basal portion. c. terminal portion. 
Pipilo maculatus. 
Entire barbule from near base of basal barb. 
Basal portion. c. terminal portion. 
Corvus corax. 
Entire barbule from near base of basal barb. 
Basal portion. 
[446] 
