Hi, I am trying to find some resources on Central American land
snails.  Specifically, I want to know which land snail species
(species names with their families listed) can be found in Costa Rica
and Panama.  Species descriptions (typical, as found in field guides)
will also be very useful.
 
Does anyone know of such resources?
 
Thanks,
 
Mike Landolfa
Dept. Biology
McGill University
Montreal, Canada