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Umbraculum umbraculum, common name the umbrella slug, is a species of large sea snail or limpet, a marine gastropod mollusc in the family Umbraculidae. [2] It is found in tropical to warm temperate parts of the Indo-Pacific and Atlantic Oceans, where it feeds on sponges .
These sea slugs live in the pelagic zone (open ocean), where they float upside-down by using the surface tension of the water to stay afloat. They are carried along by the winds and ocean currents. G. atlanticus makes use of countershading; the blue side of their bodies faces upwards, blending in with the blue of the water. The silver/grey side ...
The name "sea slug" is often applied to nudibranchs and a paraphyletic set of other marine gastropods without apparent shells. [2] Sea slugs have an enormous variation in body shape, color, and size. Most are partially translucent. The often bright colors of reef-dwelling species imply that these animals are under constant threat of predators ...
Some snails and slugs are serious crop pests, [53] and in new environments can unbalance local ecosystems. One such pest, the giant African snail Lissachatina fulica , has been introduced to many parts of Asia and islands in the Indian and Pacific Oceans , reaching the West Indies in the 1990s.
A cnidosac is an anatomical feature that is found in the group of sea slugs known as aeolid nudibranchs, a clade of marine opisthobranch gastropod molluscs. [1] A cnidosac contains cnidocytes, stinging cells that are also known as cnidoblasts or nematocysts. These stinging cells are not made by the nudibranch, but by the species that it feeds upon.
Marine scientists have identified and named a mysterious creature of the deep sea after studying the elusive sea slug for twenty years.
Sacoglossa are a superorder of small sea slugs and sea snails, marine gastropod mollusks that belong to the clade Heterobranchia known as sacoglossans. There are 284 valid species recognized within this superorder. [3] Sacoglossans live by ingesting the cellular contents of algae, hence they are sometimes called "sap-sucking sea slugs". [4]
Hexabranchidae is a family of colourful nudibranchs (often called "sea slugs") which contains only a single genus, Hexabranchus, with six species.. This family is one of the many families of dorid nudibranchs in the suborder Doridina, named after Doris, who was a sea nymph in ancient Greek mythology.