PLATE L1V. 



FIGS. 



1-3. Amaroncinm argus M. Edw. (p. 11) 1. Clusters 



of colonies from Polperro, Cornwall : natural size. 



2. The same : x 2. 3. A system : enlarged (M. 



Edwards, pi. i, f. 4). 

 4. Amaroncium Nordinauni M. Edw. (p. 14) A colony : 



natural size (M. Edwards, pi. i, f. 5). 

 5-7. Parascidta Forlesii Alder, (p. 19) Colonies : natural 



size (7) and slightly enlarged. 

 8 and 9. Parascidia Flemingii Alder, (p. 20) 8. A cluster 



of colonies : natural size. 9. A colony composed 



1 - 



or a single system : x o. 



