PLATE V. 



Page 



Fig. 1. SIPTJNCULTJS 250 



Fig. 2. NEMERTES BORLASII 256 



Fig. 3. PONTOBDELLA MURICATA. a, b. Egg-capsules . . 270 



Fig. 4. SERPULA CONTORTUPLICATA 272 



Fig. 5. SPIRORBIS 274 



Fig. 6. SABELLA ALVEOLARIA 277 



Fig. 7. AMPHITRITE VENTILABRUM 280 



Fig. 8. AMPHITRITE BOMBTX. a, b, c. Reproductive 



powers after mutilation 282 



Fig. 9. AMPHITRITE INFTJNDIBULTJM 285 



