The annotated proteins and unigenes were so numerous that it was difficult to identify all the toxins of jellyfish C. nozakii individually. So, we filtered all of the proteins and unigenes using keywords to index in the annotations according to the toxins from other venomous animals such as snakes, spiders, snails, bees, jellyfish, cone snails, sea anemones, lizards, and some fishes. We then analyzed all of the toxin candidates, removed non-toxins and classified all of the identified toxins according to their functional annotation.