How does a snail make its shell?

A small shell is formed while the embryo is still inside the shell. I don't know how this is formed. This shell is called the Protoconch. Once the snail has hatched, there are secretory cells in the mantle that lay down shell material along the leading edge. First there is an outer, protein layer, the Periostracum. read more

A baby snail begins its calcium-rich diet by eating the shell of the egg it hatched from, a convenient source of nutrients. As the snail continues to grow, its shell grows with it. The snail produces new shell material, like the soft material of its protoconch, that expands its shell and then hardens. read more

The snail produces new shell material, like the soft material of its protoconch, that expands its shell and then hardens. The part of the shell it was born with ends up in the center of the spiral when the snail and its shell are fully grown. read more

Quora. Frequently asked questions the snail wrangler. Make sure you get everything off, including cleaning the underside of shell apr 12, 2012 q my snail has left its. Because i (and nobody else know) has ever seen a baby snail so we can't say what new born it's better to avoid these issues instead of getting involved with them. I've always thought snail shells get larger as the grows. read more