Sandworms: Sandworms, also known as sand intestinal worms, are shaped much like an intestines in the form of a long tube. Although sandworms are not as famous as sea cucumbers, shark fins and abalone, they have a fresh and crunchy flavor that is as good as sea cucumbers and shark fins.

Red worms: According to zoologists, the world's red worms have a wide variety of species, a wide distribution, from tropical swamps to the polar regions, from the plains to more than 5,600 meters above the glacier are distributed. At present, the world's known rocking mosquito insects have more than 5,000 species, in our country known varieties are also in about 500 species. Red worms vary in size, thickness and length. Anglers are accustomed to the red bugs are divided into "male" and "female". "Male worms are 20 to 30 millimeters long, 1 to 1.2 millimeters in diameter (thick), with a short, thick, hard body, a blue-black head, and tough, bite-resistant skin. The head is blue-black, and the skin is tough and resistant to biting. These are the big red worms that are used as bait for fishing. The "mother worm" body length of 25 to 30 millimeters, less than 1 millimeter in diameter, but the body is slender, thin and soft, black or green head, mostly used as bait. There is also a small red worm, body length of only 1 cm, mainly used to feed ornamental fish, can also be crushed and mixed in pasta as bait. The "male" and "female" worms are actually different kinds of red worms, but they are just names that anglers are used to calling.