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Limacina are a great genus of swimming predatory water snails which can be also called because of the identity “ocean butterflies
” This type of pelagic mollusks are offered so it nickname right down to the way they swimming. Limacina flap its parapodia in order to move you might say one they resemble a great butterfly. The shell of varieties owned by genus Limacina is unique as it has a keen operculum which acts as a cover or safety at the bottom of one’s cover. It absolutely was once considered that types of Limacina was in fact inactive seekers, but it has been discovered one species of Limacina seem to be aggresive predators. Limacina positively feed on plankton, quick crustaceans, gastropods, dinoflagellates, and diatoms because of the secreting webs out-of mucus to help you trap potential victim. Whenever Limacina go up for the surface, they rise in highest organizations and this attracts of several predators causing them to a straightforward target.
Pelagia noctiluca – Scyphozoan
Like other Cnidarians, so it variety was radially symmetrical. He has line of tissues, but no organs, and only one to human anatomy starting. This new https://datingranking.net/es/citas-sapiosexual/ architecture will be the outside body, the interior gastrodermis, and you will a center coating off gelatinous mesoglea, which includes a great cartilege-such as consistency. This new medusa phase try very prominant, no base-hold stage is obtainable. The new umbrella border was put into eight lobes, where feel areas such as for instance light receptors and you may scent pits are receive. Brand new umbrella shall be bell-molded or hemispherical, and colour can range from yellow so you can brownish-yellow. Pelagia noctiluca has actually a frilled line on bell, having eight slim, stinging tentacles and four lobes holding off throughout the mouth area, called dental hands.
