Hello Conch-L, Gemmula congener is an attractive, beaded, white, deep water Turrid from the Philippines. Often, the lip is fairly simple and smooth, as in other Gemmula species, but just as often its edge is convoluted into strange-looking frills and folds - kind of bizarre for a turrid, but also rather beautiful in its own way. Question: I have heard (somewhere?) that this is due to infection of the mollusc by a virus. If so, it is a very common virus, as up to 50% of specimens seem to be "infected", and I have received some shipments where 100% showed this phenomenon. Also, while these frills are often present on the current lip margin, there is never any evidence that such frills have affected the prior shell growth. Does this "virus" arrest growth as well as deform the lip? I have seen this on the lip of specimens only 50 mm in length, and on specimens 80 mm in length. Also, I have never seen a specimen of any other species showing this. Does anyone have any information on this? Is it a virus? Or simply a genetic variation? Regards, Paul Monfils