This CD-ROM presents the first complete overview on all pelagic molluscs of the world. Compiled by marine biologists and planktologists and produced following the high standards of a scientific monograph, this is an excellent source for more than 300 pelagic mollusc species. The CD-ROM contains well over 1000 drawings and photographs as well as a revolutionary interactive identification key. The entire text is hyperlinked, and an illustrated glossary defines more than 600 scientific terms.