Phylum 
CEHLENTERATA 
Classes 
HYDROZOA 
(Zobphytes, small Jellyfishes, and a few Corals) 
SCYPHOZOA 
(Large Jellyfishes) 
ACTINOZOA 
(Sea-anemones and most of the Stony Corals) 
CTENOPHORA 
(Comb-jellies) 
