EXPLANATION OF PLATE VII. 



Fig. 1. Ophryocotyle bengalensis, n. sp. Entire worm, X about 

 30. 



2. Scolex of same. Magnified about 100. 



3. Perirostral spines. Greatly enlarged. 



4. Bothriocephalus [Anchistrocephalus) polyptera (Leyd.). 

 Entire worm, X about 18. 



5. Scolex of same, X 75. 



6. View of anterior end of scolex, X about 140. 



7. Ligula simplicissima , Rudolphi. Showing pointed poste- 

 rior extremity, X 2^. 



8. Another specimen of same showing concave anterior and 

 posterior extremities, X 2^. 



