^Structure of Bispiia volutacornis and Pomatocorus triqueter. 



PLATES IN VOL. IL 



Pl.ATF. L"| 



IL I 

 III. 



vij 



VILj 



I 



IX. ^Genitalia of Indo-Malayan Ileterocora. 

 X. 



xij 



XII. Mediterranean Bryozoa. 



XIII. Asterina coronata cristata (Fisher). 



XIV. Dicrocoelium lanceatum, var. symmetricum. 

 XV. _ 



Echeueis or Remora. 



xvL \: 

 XVII. 3 



XVIIL\ 

 XIX. > Ungual Phalanges. 

 XX. ) 



