CQELENTERATA 115 
stony corals; Scyphozoa, large jellyfishes, many of which do not 
have the double form of development; Actinozoa, the sea-anemones 
and the different forms of stony corals, including sea-fans, sea- 
pens, etc.; Ctenophora, the jellyfishes commonly known as comb- 
jellies. 
