elcome to the new introduction page of the freshwater snails.This part of the site has information about the biology of freshwatersnails. On different pages you will find the species within their Superfamilies and Families.

Biology Breathing Nervous system Blood circulation Reproduction The shell

Introduction to the freshwatersnails

You will find freshwatersnails all over the world,from freezing conditions to hot,sunny areas in the tropics.There are many different kinds of habitats: large lakes,flowing streams,calm ponds,brackish pools or bodies of water which turn into muddy areas in the dry season. Freshwatersnails have adapted to all those conditions. Freshwatersnails fall in two categories: Prosobranchs or Pulmonates. The Prosobranchs have gills in their mantle cavity and an operculum on the back of their foot.They have separate sexes. The Pulmonates have no gills and are hermaphroditic.

Biology of Ampulariidae

The body of the snail can be divided in three parts:head,foot and visceral mass.The body is attached to the shell with a strongly developed muscle:the columellar muscle. This starts from the foot and is attached to the columella.The visceral mass is covered by a skin and forms the pallium or the mantle.It forms a cover over the anterior part of the animal and envelopes the head when it is withdraw in the shell. The edge of the mantle is thickened and has the glands that secrets the shell. The headbears on both sides a lab ...

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