Studies conducted in Mississippi Sound from April 1971 through June 1973 elucidated the seasonal and areal distribution of seven species of macrocoelenterates: Aurelia aurita (L), Chrysaora quinquecirrhu (Desor 1848), Pelagia noctiluca Forskål 1775, Chiropsalmus quadrumantus (Miiller 1859), Rhopilema verrillii (Fewkes 1887), Stomolophus meleagris L. Agassiz 1862, and Physalia physalis (L). Physical parameters presumed relevant to the distribution of each of these animals are presented. Developmental histories of certain of these forms are described
