In some slow-moving radially symmetrical marine animals such as ctenophores and cnidarians (including sea anemones and jellyfish), the nerves form a nerve net, but in most animals they are organized longitudinally into bundles.
Some slow-moving, radially symmetrical marine organisms like ctenophores and cnidarians (which include sea anemones and jellyfish) have their nerves spread out as a network, whereas the majority of animals have them arranged linearly in groups.