(of fish) migrating from salt water to spawn in fresh water, as salmon of the genera Salmo and Oncorhynchus (distinguished from catadromous). Origin of anadromous.
A: A snail scrapes its food, rather than chews it like we humans do. A flexible structure called the radula in the snailâs mouth is lined with neatly organized rows and columns of tiny tooth-like projections. The snail moves its radula over the food, scrapes off bits of it, and swallows.
1 Some snails refuse to eat lettuce (or other food) that comes ready-to-eat (washed and what not), so try to use a fresh crop and wash it yourself.  If you keep more then one snail and want to name it, you may accidentally mix them up.