PLATE 16 
CoLYMBIFORMES 
All figures, except 9h, < 100 
Fig. 8. Gavia immer. 
a. Distal barbule from inner vane of remex. 
b. Proximal barbule from same. 
c. Distal barbule from outer vane of remex, pennulum in lateral view. 
d. Proximal barbule from same distal third of barb. 
e. Distal barbule from breast feather. 
f. Proximal barbule from same. 
Fig. 9. Aechmophorus occidentalis. 
a. Distal barbule from inner vane of remex. 
b. Proximal barbule from same. 
c. Distal barbule from outer vane of remex. 
d. Proximal barbule from same, distal third of barb. 
Distal barbule from back feather. 
Proximal barbule from same. 
Distal barbule from back feather, near tip of barb. 
Portion of barb from breast feather. 36. 
FQud 
[404] 
