Shell aquatic, oval, turreted or conical, thin, smooth, spire pointed; aperture oval, entire; edges disunited, the left with a very oblique plait at the point of junction of the columella with the rest of the margin.
Lymnæa stagnalis.
L. palustris.
L. Virginiana.
L. luteola.
L. acuminata.
L. auricularia.
L. ovata.
L. peregra.
L. intermedia.