^p^?' 



l*t. 



*k'' 



^(A ; fi-. 



"yi>^. 



u». 



23. A solitary cup coral, Canjopliyllia chivus, dredged from the Bay of Biscay, 

 abounds in the deeper waters off Enghind, France, and Spain, and also in the coastal 

 Mediterranean mud zone. If shell or gravel is lacking it is held in the mud by its 

 pointed base. (D. P. Wilson) 



24. An orange-colored coral, Astroides ciihj- 

 culuris, here shown at about natural size, 

 carpets rocks along the coasts of Italy, often 

 just below the water line. Only at the base 

 of the colonv, where some of the polyps 

 have died, can one see the gray limestone 

 skeleton, pocked with cavities that housed 

 the polvps. (Naples Atjuarium. D. P.Wilson) 



