I realize now that this kind of shell collecting is destructive. Local divers come across a rare shell which they can make money and systematically search and collect (kill) them for sale. Eventually all are gone. I personally regret collecting. these of course are spondylus. I can take more detailed image if need be. basically what you see here is the entire collection except fossils. Pinnidae Xenophora Each box below contains unique species, all identified, Some duplicates I donated to the Smithsonian (they did not have examples) I have the letters to prove this. The collection started in the early 60s. . Name your price. This Tridacna gigas is 33 inches. there's also a separate pair (see below). What you see here is just the general stuff not my specialty collection . the three images above show Xenophora which was my speciality. In particular corrugata. The one Macromphalus is damaged but there's another that's fine. Th