(_Pleurotoma babylonia_.)
The Babylonian Split-Mouth is found in the East Indies and the Molucca
Islands, and is about three inches and a quarter in length. It is said
that the animal of this shell, when in motion, has its foot separated
as it were from its body by a long thick footstalk, which arises from
the centre of the mantle, which is at this time turned back over the
shell. This separation of the foot has the effect of causing the
creature to tumble over frequently, from the great weight it has to
support.