>Try Mytilopsis leucophaeara(sp?). Does it have a small platform on the inside near the tip?<
Mytilopsis spp. are relatives of the zebra mussel rather than true mussels. Instead of nacre, they have porcellaneous shells (similar to most mollusks). If the inside is not mother of pearl, it is probably not a true mussel.
Dr. David Campbell
Old Seashells
University of Alabama
Biodiversity & Systematics
Dept. Biological Sciences
Box 870345
Tuscaloosa, AL 35487-0345 USA
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That is Uncle Joe, taken in the masonic regalia of a Grand Exalted Periwinkle of the Mystic Order of Whelks-P.G. Wodehouse, Romance at Droitgate Spa