(3-4 specie in Swedish waters)
Distribution in scandinavian waters
Maximum length: 6 mm.
Appearance: The shell
has a light pink to light brown colour, occasionally somewhat transparent.
At a distance, living mud snails look like small black or grey dots.
The soft parts of the mud snail are white with dark patches or streaks.
Depth: 0-20 m.
Environment: Mud snails live commonly on soft bottoms, but in
they are even found on hard bottoms. Certain specie of mud snail are
found in freshwater.
Misc: Mud snails are quite noticeable, especially on muddy and
sludge-like bottoms because of their high population densities - (as
many as tens of thousands per m2).
Classification: Often it is very difficult
or impossible to classify mud snails. To determine the specie it
is necessary to study their shell form, tentacle and mouth pigmentation,
the tongues appearance and the genital form.
Mud snails are mesogastropods, which belong to
the shells group under the molluscs.
Mud snail More
facts Other names
© Aquascope 2000 Tjärnö Marine Biological
Laboratory, Strömstad, Sweden
| Martin Larsvik
Loo | Helena