PLATE V, 



Figs. 1-7. Strophoi.icnia s|)ini).sa, X 33. Figs. S, 0, 13. S. oi)hi(li;iiia, X 24. Fig.s. 10-12, 14-17, 

 S. farciiiien, X 33. 



Figs. 1, 2, 3 fross srclioiis of S. spinosa (large spnrimni) along lines A, B, C indicated in fig. 2, 

 pi. S (the lines .\, H sliould be perpendieular to the entiele). 



Fig. 4. Cro.ss section through radida and salivary gland outlet, S. spinosa. 



Figs. .'), 0, 7 are through fig. 4, ])!. !) (posterior end). 



Figs. S, (I, i:i are cross sections of S. ophidiana along lines A, H, C of fig. 5, pi. S. 



Figs. 10, 11, It) are cross sections of S. farcimen along lines. A, B, C indicated in fig. 1, pi. 7 (ante- 

 rior end). 



Figs. 14, I.'), 12, of same species, corresjKind to lines D, E, F, of fig. 1, pi. 1 1 (posterior end). 



Fig. 17. Spines of Strophouienia farcimen. X 210. 



