ABSTRACT
In order to limit such a wide-ranging subject, I shall limit my considerations here to the Coeienterates, a group including a large number of marine organisms responsible for a wide and recurring variety of reactions. Not to be neglected, however, and hence at least worth mentioning, are dermatitis caused by contact with Echinoderms and with several other animals (mollusks, arthropods, sponges, water worms, fish). Cutaneous pathology caused by Coeienterates is yet another example of how changing habits in the population can lead to subsequent changes in some reactions of series of dermatologic cases.
