252 AMPHITRITE. 
PLATE XXXIV. 
Fic. 1. Filipora filograna, specimen. 
2. Cluster of tubes with the Amphitrite, enlarged. 
. Amphitrite protruding from a tube. 
. Plume of eight branchize viewed in front. 
. Amphitrite having fallen from its tube. 
. Another, exposing some internal organization. 
All the preceding figures, except the first, enlarged. 
aD oP 
