By Dr. John B. Burch, Ph.D.
Clea sp., a Thai freshwater snail.
Neogastropods can usually be recognized by their long incurrent siphon and accompanying siphonal structure on the base of the shell. Nearly all neogastropods are marine. Clea is a rare freshwater genus.
Contributors
Dr. John B. Burch, Ph.D.
(author), Mollusk Division, Museum of Zoology, University of Michigan.

