ABT. 18 THE TREMATODE FAMILY SCHISTOSOMIDAE PRICE 37 



Plate 1 

 Schistosoma haematobium 



Figure 1. Anterior end of male. Original. 



2. Male and female. After Manson-Bahr and Fairley, 1920. 



3. Egg ; greatly enlarged. After Looss, 1896. 



4a. Cercaria. After Betteucourt and Borges, 1922. 



4&. Cercaria showing excretory system. After Bettencourt and Borges, 

 1922. 



Schistosoma incognitum 

 5. Egg. After Chandler, 1926. 



Plate 2 

 Schistosoma niansoni 



Figure 6. Anterior end of male; lateral view. Original. 



7. Anterior end of male ; ventral view. Original. 



8. Male. After Manson-Bahr and Fairley. 1920. 



. 9. Female. After Manson-Bahr and Fairley, 1920. 



10. Cercaria. After Faust, 1920. 



11. Egg. After Cort, 1919. 



Plate 3 



Sell Istosoma japonicum 



Figure 12. Male. Original. 



13. Female. Original. 



14. Cercaria. After Cort, 1919. 



15. Cercaria showing excretory system. After Cort, 1919. 



16. Egg. After Cort, 1919. 



Plate 4 



Schd^tosoma spindalis 



Figure 17. Male with female in the gynaecophoric canal. After Vryburg, 1907. 

 IS. Anterior end of male. After Vryburg, 1907. 



19. Female. After Vryburg, 1907. 



20. Cercaria. After Soparkar, 1921, 



21. Cercaria showmg excretory system. After Soparkar, 1921. 



22. Egg. After Montgomery, 1906. 



Plate 5 

 Soil istosoma hovis 



Figure 23. (a) Male, (6) female, (c) egg. After Khalil, 1924. 



24. Male and female. After Louckart, 1894. 



25. Eggs. After Sonsino, 1876. 



