MUSEUM OF COMPARATIVE ZOOLOGY. 283 



DESCRIPTION" OF PLATES. 



PLATE I. 



Fig. 1. Ophiomyxa tumida, from below ; f . 

 Tig. 2. " " from above ; \. 



Tig. 3. " " arm-joints, profile ; |. 



PLATE II. 



Pig. 1. Ophiotoma coriacea, from below; ^. 



Pig. 2. " " from above ; %. 



Pig. 3. " " arm-joints, profile ; f . 



Pig. 4. Ophiobyrsa Perrieri, from below ; \. 



Pig. 5. " " from above; \. 



Pig. 6. " " arm-joints, profile ; { . 



PLATE III. 



Pig. 1. Pectinura tessellata, from below ; •§. 



Fig. 2. " " from above ; f . 



Pig. 3. " " arm-joints, profile ; f . 



Pig. 4. " lacertosa, from below , \. 



Pig. 5. " " from above; \. 



Pig. 6. " " arm-joints, profile; \. 



Pig. 7. " angulata, from below ; -|. 



Pig. 8. " " from above j |. 



Pig. 9. " " arm-joints, profile ; •§. 



Pig. 10. Ophiozona marmorea, from below ; \. 



Pig. 11. " " from above; \. 



Fig. 12. arm-joints, profile; \. 



Pig. 13. " clypeata, from below; \. 



Fig. 14. " " from above ; |. 



Fig. 15. " arm-joints, profile ; \. 



Fig. 16. Ophiochytra tenuis, from below : \, 



Fig. 17. " " from above j | 



Fig. 18. " " arm-joints, profile ; \. 



