EXPLANATION OF PLATE XII. 



Fig. 6. Lobularia viride, Q. & G. 



| 6a, 66, tic, Qd. Spic,ules from the ccenenchyira 



Fig. 7. Spongodes pallida, sp. nov. 



7a. Colony. Twice nat. size. 



,, 76. Portion of colony greatly enlarged. 



7c. Cortical spicule. 

 Pig. 8. Siphonogorgia macrospina, sp. nov. 



,, 8a. Portion of colony. Nat. size. 



86. Portion of colony. Greatly enlarged. 



,, 8c. Rods from the canal walls. 



8d. Cortical spicule. 



