Limacina are an excellent genus regarding swimming predatory sea snails that will be known because of the name “sea butterflies

Limacina are an excellent genus regarding swimming predatory sea snails that will be known because of the name “sea butterflies

” Such pelagic mollusks are Oklahoma sugar daddies offered it nickname as a result of the way they move. Limacina flap its parapodia in order to swimming in a sense that it end up like a beneficial butterfly. The newest cover of types belonging to genus Limacina is special because the it includes an enthusiastic operculum and that will act as a top otherwise security towards the bottom of your own layer. It absolutely was once thought that types of Limacina was indeed couch potato seekers, but it has been discovered you to definitely species of Limacina are actually aggresive predators. Limacina definitely prey on plankton, brief crustaceans, gastropods, dinoflagellates, and you will diatoms because of the secreting webs away from mucus so you can pitfall prospective prey. When Limacina go up for the epidermis, they escalation in high groups and that pulls many predators causing them to a simple address.

Pelagia noctiluca – Scyphozoan

Like other Cnidarians, it varieties are radially symmetric. He’s distinctive line of buildings, but no body organs, and only one to system beginning. The architecture certainly are the outside body, the interior gastrodermis, and you will a center layer of gelatinous mesoglea, that has a good cartilege-for example consistency. The fresh medusa stage was extremely prominant, without bottom-hold phase can be acquired. The fresh new umbrella edge is actually divided in to seven lobes, in which sense areas for example light receptors and smell pits is actually found. The umbrella is bell-designed otherwise hemispherical, and you can colour can range out of reddish to help you brown-red-colored. Pelagia noctiluca enjoys a good frilled boundary into bell, having 7 slim, stinging tentacles and you will five lobes dangling down in the lips, called oral hands. The brand new tentacles have become elastic. (more…)

Continue ReadingLimacina are an excellent genus regarding swimming predatory sea snails that will be known because of the name “sea butterflies