Hirudisomatid Millipeds 
113 
Figs. 6-11. O. bivirgata, neotype. 6, head and collum, anterior view, setation 
and pigmentation omitted. 7, profile of midbody segment, caudal view. 8, 
midbody segments, lateral view of left side, pigmentation omitted. 9, left 
anterior gonopod and sternum, anterior view. 10, right anterior gonopod, 
caudal view. 11, left posterior gonopod, caudal view. Upper scale line = 
0.50 mm for figs 6-8; lower line = 0.25 mm for figs 9-11. 
