EXPLANATION OF PLATE VII. 



EUNICEA MURICATA. SPICULES. 



Figs, i, 3, 6, 13, 14, 18, 19. Symmetrical tuberculate fusiform. 

 Figs. 2, 5, 10, 20, 22, 25. Echinato-davatc . 

 Figs. 4, 7, 12, 24, 28. Attemiato-echinate. 

 Figs. 15,26,23. Arcuate tuberculate ftisijorm. 

 Figs. 8,9, n, 16. Irregular. 

 Fig. 17. Bi-pai tite tuberculate. 

 Fig. 21. ^uadri-par tite tuberculate. 



Fig. 27. Surface of tuberculate spicule highly magnified, sho'vifig axial cavities 

 of tubercles. 



