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The name "sea slug" is also often applied to the sacoglossans (clade Sacoglossa), the so-called sap-sucking or solar-powered sea slugs which are frequently a shade of green. Another group of main gastropods that are often labeled as "sea slugs" are the various families of headshield slugs and bubble snails within the clade Cephalaspidea.
The neon orange appendages on the back of Flabellinopsis iodinea are the cerata which extract oxygen from the sea water they are surrounded by and live in. The cerata are also extensions of the digestive system, and are used to store the stinging cells of the anemones and fan-like hydroids they eat.
Two very elegant species of Sea-slug, viz., Eolis punctata [i.e. Facelina annulicornis], and Tritonia arborescens [i.e. Dendronotus frondosus], certainly produce audible sounds. Professor Grant, who first observed the interesting fact in some specimens of the latter, which he was keeping in an aquarium, says of the sounds that 'they resemble ...
Dendronotus is a genus of sea slugs, nudibranchs, marine gastropod molluscs in the superfamily Tritonioidea. [ 1 ] This genus is within the clade Cladobranchia (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 ).
Peltodoris atromaculata, more commonly known as the dotted sea slug or sea cow, is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Discodorididae. [1] It dwells in salt water up to the depth of 40m. It is exclusively found in precorralligene and coralligene communities and is very common in such communities. [2]
In addition to trapping prey, the slug's hood can snap shut and propel the animal away from danger. Predators might overlook the sea slug's transparent body or be startled by its bioluminescence ...
6 species 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.
Monterey Bay Aquarium Research Institute scientists have discovered Bathydevius caudactylus, a new species of glowing sea slug that lives deep in the ocean.