Which sea cucumber in Jinan is authentic?

Sea cucumber, belonging to the class Holothuria, is a kind of marine echinoderm living at the seaside up to 8000 meters. 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, and about 20 kinds of sea cucumbers are edible.