African giant snails (Achatina fulica) gastropod-stemmed ophthalmidae African giant snails, also known as "black field snails" (but not field snails), native to East Africa. The African giant snail is one of the largest existing terrestrial snails. Its adult shell is 10-20cm high (up to 30cm), its shell width is 8-15cm, conical or top-shaped, its shell surface is dark brown or yellowish brown, and it has 5-6 dark longitudinal ribs. It is artificially introduced, the current invasion is distributed in tropical/subtropical regions such as Asia (India, Southeast Asia), Pacific Islands (Hawaii), and America (Brazil, Florida).

Snails are mollusks of the family Snails, with over 25000 known species worldwide. Snails have a soft body with a spiral shaped outer shell, and their body is divided into a head and feet; There are 2 pairs of antennae on the head, 1 pair of longer antennae on the back, and 1 pair of eyes at the top of the antennae. There are jaws and file shaped teeth in the mouth, which are used for chewing and chopping food; The abdomen and feet are flat and secrete mucus at the bottom, making it convenient for the feet to use muscle contractions to glide on different surfaces. Breathing occurs in tissues similar to lungs, and air enters through the inhalation port. Snails are named because they have two horn like antennae on their heads when crawling.

The garden snail belongs to the "Halix" snail genus, which is native to central western Europe such as France and England. It usually inhabits gardens or shrubs, hence it is called the "garden snail" or the scattered snail. There are dense and delicate engraved patterns, with multiple dark brown spiral shaped bands that block the yellow spots or stripes that intersect with them., Shells have 4.5 to 5 snail layers, with a shell height of 29 to 33 millimeters and a shell width of 32 to 38 millimeters. The shell surface has obvious threads and growth lines, and the spiral part is short. The embryonic snail layer is smooth, and the body snail layer is particularly enlarged, with extreme inclination in the forward direction.

The garden snail belongs to the "Halix" snail genus, which is native to central western Europe such as France and England. It usually inhabits gardens or shrubs, hence it is called the "garden snail" or the scattered snail. There are dense and delicate engraved patterns, with multiple dark brown spiral shaped bands that block the yellow spots or stripes that intersect with them., Shells have 4.5 to 5 snail layers, with a shell height of 29 to 33 millimeters and a shell width of 32 to 38 millimeters. The shell surface has obvious threads and growth lines, and the spiral part is short. The embryonic snail layer is smooth, and the body snail layer is particularly enlarged, with extreme inclination in the forward direction.

Snails are mollusks of the family Snails, with over 25000 known species worldwide. Snails are named because they have two horn like antennae on their heads when crawling. Snails have a wide variety of species and are distributed around the world. Snails like to live in dark, damp, loose, and humus rich environments. They work during the day and stay up at night, and are most afraid of direct sunlight, making them sensitive to environmental reactions. Snails mainly feed on plant-based foods, especially vegetables, fruit tree buds, and crop roots and leaves. Snails are a well-known traditional Chinese medicine with a sweet, salty, and cold taste. They have the effects of clearing heat, diuresis, detoxification, reducing swelling, relieving heat, removing phlegm, and promoting lactation.

The African giant snail, also known as the brown cloud agate snail, African giant snail, vegetable snail, flower snail, etc., is a soft bodied animal belonging to the Agate snail family. The African giant snail is a medium to large terrestrial snail. The African giant snail is distributed in Guangdong, Hong Kong, Yunnan, Guangxi, Fujian, and Taiwan in China. The Zanzibar and Pemba Islands along the East African coast are the original habitats of the African giant snail. The African giant snail is a global agricultural pest that has had a significant impact and harm on China's native species, ecological environment, and socio-economic development. It is the intermediate host of many human and animal parasites and pathogens, especially for the transmission of tuberculosis and eosinophilic meningitis.