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The greatest diversity of nudibranchs is seen in warm, shallow reefs, although one nudibranch species was discovered at a depth near 2,500 m (8,200 ft). [10] This nudibranch, described in 2024 as Bathydevius , is the only known nudibranch with a bathypelagic lifestyle and is one of the very few to be bioluminescent .
Bathydevius is a bizarre nudibranch with a highly unusual appearance, ecology, and taxonomy. It is the first known nudibranch to inhabit the bathypelagic zone, and only one of very few pelagic, free-swimming genera within this generally benthic group.
Dendronotus iris, also known as the rainbow nudibranch, is a species of sea slug, a dendronotid nudibranch, a shell-less marine gastropod mollusc in the family Dendronotidae. [ 2 ] [ 3 ] Distribution
Of the approximately 3000 species of nudibranch, the vast majority are benthic, only a couple are neustonic, and Cephalopyge trematoides is very unusual in that it is pelagic. [6] [7] It is estimated to be one of only five planktonic nudibranch species (another epipelagic example is Phylliroe bucephala). [8] Further information (including photos):
Melibe leonina in aquaria. While most nudibranchs are predators of sessile benthic organisms, M. leonina feeds on planktonic invertebrates. [3] M. leonina is carnivorous and has been observed eating several types of planktonic crustaceans, including amphipods, copepods, ostracods, and various types of larvae.
Doris odhneri is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Dorididae. [2] [3] It is known by many common names, such as: giant white nudibranch, giant white dorid, and white-knight nudibranch.
Berghia is a genus of sea slugs, aeolid nudibranchs. They are shell-less marine gastropod molluscs in the family Aeolidiidae. [2] They are covered in cerata which give them their unique tentacle look and color. Berghia are commonly found in shallow waters and their diet consists of strictly Aiptasia Anemone. This genus is now commonly used ...
In the case of the diamondback tritonia, these nudibranchs are typically light pink, orange or white in color [7] and have an intricate pattern along their back. This pattern can vary amongst individuals. [8] They also possess a vestigial girdle of chitinous ridges that separates them from other nudibranch species. [9]