In this duct and sac the spermatophores received in copulation from another snail are lodged.
Carmen continued at a snail's pace across the floor.
The number of cercariae produced by the pullulating rediae in a single water-snail is immense, and as they are emitted at a given period or a few successive periods, the snail at these times appears enclosed in a cloud of whitish flocculent matter.
Is it purely as a pet, for eggs, as a snail and slug deterrent or for meat?
There is not a very large amount of food-material present in the egg of this snail, and accordingly the cells resulting from division are not so unequal as in many other cases.