Trumpet Snails

Can anyone provide a brief description of a Malaysian Trumpet snail?  At the
pet store where I work, we have some trumpet snails, that may be the right
kind.  Also, would these snails be a good addition to a tank that has a large
patch of Lilleopsis (not sure which species, it is rather short)?  The
substrate for the lilleaopsis is not very deep, compared to the rest of the

Alan Van Nevel		UMC Physics
573 882 6735
frog at theory_physics.missouri.edu

   "Animals are such agreeable friends-they ask no questions, and 
   pass no criticisms." -- George Eliot, _Scenes of Clerical Life_