238 Explanation of Plates. 



PLATE VIII. 



BuKSAE OF Intersexes of P. argus. 



Fig. 1. Bursa with gradually dilating tube and shrivelled caput. 

 Intersex no, 16. 



2. Bursa with two constrictions. Intersex no. 17. 



3. Bursa mth dilated tube and sharp constriction near caput. 



Intersex no. 7. 



4. Bursa with very dilated proximal and very thin distal 



part of tube. Intersex no. 14. 



5. Bursa with dilated proximal part of tube. The prominence 



of right side of caput and crmkling of inner lining are 

 artefacts. 



6. Very large bursa with two constrictions, one in the caput. 



7. Very small bursa. 



8. Bursa with long wide tube and short caput. 



9. Bursa with dilated tube constricted below caput and small 



caput. Intersex no. 9. 



10. Bursa with proximal part of tube dilated and distal part 



constricted. Caput large. 



11. Bursa with long dilated and short constricted portion. 



Intersex no. 18. 



12. Bursa with short dilated and longer constricted parts of 



tube and constricted caput. 



13. Bursa with very dilated proximal and very narrow 



distal part of tube. Recently impregnated specimen. 

 Intersex no. 14. 



14. Bursa with shrivelled caput, probably not abnormal. 



Intersex no. 4. 



15. Bursa with dilated proximal and very narrow distal part 



of tube. Intersex no, 19. 



16. Bursa with dilated proximal part of tube. Intersex 



no. 8. 



