Mollusca- Arizona's Tree of Life Web Page. Pictures, characteristics, phylogenetic relationships, references on molluscs. Pictures and references, and links to polyplacophorans, gastropods, bivalves and cephalopods. Most sites have reference lists.
Phylum Mollusca- Animal Diversity Web, University of Michigan. Information on molluscs, and links to all 7 classes of molluscs. Some images may not be displayed due to copyright restrictions.
Phylum Mollusca- This site is from the University of Minnesota.
