Worm is a worm-like annelids, also known as sand intestines. This worm usually lives on the beach. It may come out at high tide and hide in the sand at low tide. Although the insect is an annelid, its larvae and adults are not segmented, and usually make a living by filtering sediments.

This insect is also called sea cucumber, and its scientific name is Sipunculus nudus. Its body structure is relatively simple, and it is all used to exercise muscles. Its body is very long, cylindrical, much like intestine, and its body length is about 10-22cm. It is naked and hairless, and its longitudinal muscles and annular muscles are staggered in bundles to form a square lattice pattern, which is distributed in the north and south coasts of China.

The difference between sand worms and sea intestines

1, the shape is different.

Sandworms, also known as sand intestines and starworms, often live in coastal beaches with sand and mud as the bottom, and are usually cylindrical and thin in shape. In fact, the sea sausage is a single ring thorn, pale yellow, usually thicker in diameter, and looks like a naked sea cucumber, so the two are different.

2. Different distribution

Seaweed is widely distributed in the ocean, and its growth can be found in waters from cold zone to tropical zone. In some Bohai Bay areas in China, it mainly grows in Yantai and Qingdao coastal areas. But for sand worms, most of them grow in some sandy land, which is related to the distribution of sand worms in many places in China, such as Beihai, Xiamen, Zhanjiang and Taiwan Province Province.

Please refer to Baidu Encyclopedia-Sandworm for the above contents.