As I mentioned on the main slug page,
they are split into three groups. The slug pictured above is one of
three species which belong to the group called Shelled Slugs
which are easily recognised by the small shell at the rear end and a
small mantle (the smooth pad-like area on the head). This species is
one of the most common of it's type, and is found all over Britain apart
from the northern part of Scotland, being mostly seen in the spring.
When extended the body tapers markedly towards the front end consistent
with the mainly subterranean habits of these animals. They are carnivorous
creatures and their diet consists mainly of earthworms. The prey is
generally caught underground, but the slugs often emerge from their
burrows on warm damp nights and attack worms exploring on the surface.
A worm attacked in such a position will immediately withdraw back into
it's burrow, but such is the grip of the slug's radula (a file like
tongue) that the slug is merely drawn into the the burrow after the
worm. It can then finish it's meal in peace.
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Casual Intruders page