Sea cucumber: It belongs to the class Holothuria. It is a marine echinoderm that lives below 8000 meters by the sea. It has a history of over 600 million years. Sea cucumbers feed on algae and plankton on the seabed. Sea cucumbers are covered with thorns and are widely distributed in the oceans of the world. There are many kinds of sea cucumbers along the coast of the South China Sea, about 20 of which are edible. Sea ginseng, bird's nest and shark's fin are equally famous, and it is one of the eight treasures in the world.
Sandworm: also known as sea cucumber, scientific name nudus, commonly known as "sandworm". Its shape is very similar to that of the intestine, and it is long and cylindrical, with a body length of about 65,438+00 to 20 cm. It is naked and hairless, and its longitudinal muscles are in bundles, and the annular muscles are staggered to form a square lattice pattern. Although starworm is not as valuable as sea cucumber, shark's fin and abalone, it tastes delicious and crisp, not as delicious as sea cucumber and shark's fin.