Dear all, just recently I recieved an unidentified Spondylus in the mail. I found no reference to it in any of my books. I was hoping someone could Identify it for me. It is fairly large, perhaps 3-4", and is very light chalky purple in color. There is a large lump on the end of the top valve that may be the umbone. Spines are numerous and very short. Interior is glossy off white, with hints of green-yellow. The edge of the interior is purple-brown. The only data I have on it so far is that it came from Zanzibar. Thanks, James