This description is about a sea cucumber found in the deep sea. It is an invertebrate that lives in the dark depths of the ocean. It has a soft, cylindrical body and is covered in a leathery skin. Its body is filled with small, tube-like
From Wikipedia
Sea cucumbers are echinoderms from the class Holothuroidea. They are benthic marine animals found on the sea floor worldwide, and the number of known holothuroid species worldwide is about 1,786, with the greatest number being in the Asia–Pacific region. Sea cucumbers serve a useful role in the marine ecosystem as detritivores who help recycle nutrients, breaking down detritus and other organic matter, after which microbes can continue the decomposition process.