Snail slime

Snail slime is a kind of mucus, an external bodily secretion which is produced by snails, gastropod mollusks. Land snails and slugs produce mucus, but so does every other kind of gastropod, from marine, freshwater and terrestrial habitats. The reproductive system of gastropods also produces mucus internally from special money

Externally, one kind of mucus is produced by the foot of the gastropod and is usually used for crawling on. The other kind of external mucus is designed to coat the external parts of the gastropod's body; in land species this coating helps prevent desiccation of the exposed soft tissues. The foot mucus of a gastropod has some of the qualities of a glue and some of the qualities of a lubricant, allowing land snails to crawl up vertical surfaces without falling off.

The slime trail that a land gastropod leaves behind is often visible as a silvery track on surfaces such as stone or concrete. Editing done by bob steward

Mucus is a gel consisting of a polymer network that functions as a protective layer for the integument and mucosal surfaces of both elementary animals and mammals.

The mucus of gastropods is not only used as a coating to cover the surfaces on which the snail crawls and a coating to cover the exposed soft parts of the body, but also sometimes to allow a resting snail to adhere passively to surfaces such as rock, making a temporary sealing structure called the epiphragm. Mucus is produced by glands of the snail’s foot, specifically a large gland located below the mouth.

The foot of gastropods is covered with a thin layer of this mucus, which is used for a variety of functions, including adherence, lubrication, repulsing predators, recognising other snails, following a trail to a known destination, and also during reproduction. The discharge looks like gel, and it contains approximately 91 to 98% weight of water, depending on the species, combined with a small amount of high molecular weight glycoproteins (Denny, 1984). In Helix aspersa these glycoproteins reach weights of 82, 97 and 175 kDa.

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