“at 
268 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
EXPLANATION (OF ¢ PLATES, 
oc., otocyst; m. s., marginal sense organ. 
PLATE 1. 
Fig. 1. Euphysa tetrabrachia. 
Fig. 2. Oceania brunescens. 
Fig, 3. ce virens. 
Fig. 4. . a bell margin. 7 
Fig. 5. Eirene danduensis, bell margin. 
PLATE 2. 
Fig. 6. Eirene danduensis. 
Fig. 7. Eutimeta lactea. 
| Bigs 8: = «bell margin. 
Fig. 9. Aglaura octagona. 
PLATE 38. 
Fig. 10. Timoides agassizii. 
Fig. 11. # A bell margin. 
' PLATE 4. 
Fig. 12. Gonionemus pelagicus. 
Fig. 13. “ " bell margin. 
Fig. 14. oar . tip of tentacle. 
Fig. 15. Liriope hemisphericus. 
Fig. 16. * bell margin. 
PLATE 5. 
Fig. 17. Liriope indica. 
Fig. 18. x “bell margin. 
Fig. 19. Pegantha simplex. 
Fig. 20. * oral view. 
