Sea cucumbers are organisms belonging to the phylum Echinodermata from the class Holothuroidea composed of five genera. Even though some are found in shallow waters, they are typically ocean dwellers and are found living in the deep ocean. They live on or near the ocean floor and are often buried beneath it.
Citation: Ceesay A, Shamsudin MN, Alipiah NM, Ismail IS (2012) Biodiversity and Adaptability of Holothuria leucospilota and Stichopus japonicus Sea Cucumber Species in Artificial Environment. J Aquac Res Development 3:123