Diam. 



Fig. 1. Parantipathes larix (Esper). Vertical transverse sections of a 

 polyp ; the right half of the figure passes through the base of 

 a lateral tentacle ; the left half represents a section nearer the 

 median transverse axis, ...... 



Fig. 2. Antvpathella subpinnata (E. & S.). Horizontal section of a transverse 

 mesentery, showing the position of the ova, 



Fig. 3. Leiopathes glaberrima (Esper). Longitudinal section of the wall of a 

 tentacle, ........ 



Fig. 4. Leiopathes glaberrima (Esper). Vertical section of a rather young 

 polyp, 



Fig. 5. Leiopatlies glaberrima (Esper). Vertical section of the mesenterial 

 filaments shown in the right half of fief. 4, . 



Fig. 6. Transverse section of the vermiform parasite from the ccelenteron of 

 Antipathella subpinnata (E. & S.), . 



108 



300 



560 



47 



250 



450 



