Hello Alwyn: That book is probably: S. Peter Dance - 1969 Rare Shells, Univ of California Press, 128 pp, Hard Bound, Dust Jacket I do not know of any list that has been put together on it, but I do have an extra copy (which is probably signed). Let me know if you are interested in perhaps doing some trading for it. Leslie Allen Crnkovic Houston, Texas -------------------------------------------------- Dear all I am looking for the reference of a publication that describes the 100 (I think) rarest shells in the world. It’s quite an old publication and many of the shells are now readily available. I also know there is a website somewhere that a collector put up after collecting the 100 species. I am just looking for the reference and if possible the website that has a list of the shells explained in the book. I tried the archives as I can remember a discussion on the book a couple of years ago, but was unable to find it. Any help will be appreciated. Best regards Alwyn South Africa