Hello He Jing My favorite book for that category has been the Large 2 Volume Australian Publication: "Mollusca: The Southern Synthesis. Fauna of Australia Vol 5" Beesley, P.L., Ross, G.J.B. & Wells, A (eds) CSIRO Publishing, Melbourne, AU. ISBN: 0 643 05756 0 Part A: pp 1-563 / Part B: pp 564-1234 1998 Hardback, List Price: $295.00 (Australian Dollars) Here is a good Review of it: http://www.seaslugforum.net/factsheet.cfm?base=brabrs1 ------------------------- Dear all Is there a book whick collected the description of all families together? i need the description of families, not the species. Best Regards He Jing [log in to unmask] 0086-021-64813575 www.shellsfromchina.com ---------------------------------------------------------------------- [log in to unmask] - a forum for informal discussions on molluscs To leave this list, click on the following web link: http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 Type your email address and name in the appropriate box and click leave the list. ----------------------------------------------------------------------