Dear Dan, here's one more: NATICIDAE Natica rufilabris Reeve ---------- Machinato Reef,Okinawa, Japan Natica rufilabris Reeve, 1855 is a Caribbean/ Western Atlantic species (the type locality is Bahia, Brazil), and on top of that it is a junior synonym of Natica (Natica) livida Pfeiffer, 1840. So your specimen, if it indeed comes from Okinawa, cannot possibly represent this species. Over the years I have seen many so-called "Natica rufilabris" from Japan, and they all turned out to be Natica gualtieriana Recluz, 1844. You might want to check that possibility. Cheers, Michael ****************************************** Prof. Dr. Michael Hollmann Goerdelerweg 17 D-37075 Goettingen GERMANY Tel.: (home) (49)-551-58468 Tel.: (work) (49)-551-3899-437 FAX: (work) (49)-551-3899-644 e-mail: [log in to unmask]