Helmet jellyfish reach a body size of up to 30 cm (12 in). The average wet weight of the jellyfish is 540 grams. Overall, helmet jellyfish have a uniform size. They consist 90% of water, the rest being tissue and gelatinous … Meer weergeven

Periphylla periphylla represents an exception, very rarely found in the phylum Cnidaria: the medusae do not go through a polyp … Meer weergeven

The jellyfish is found in depths up to 2700 meters and is adapted to its dark environment. Not only have they become adapted and more abundant in darker environments, but they are also found in very opaque and cloudy waters. They are found in … Meer weergeven

The helmet jelly is found in nearly every ocean of the world, as well as in the Norwegian fjords and in the Mediterranean Sea. The only ocean they are not known … Meer weergeven