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Date: | Mon, 29 Nov 2004 16:55:01 -0500 |
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> Congeria leucophaeta
Mytilopsis seems to be a valid genus, applicable to this and other generally (though not exclusively) estuarine dreissinids. M. sallei is another New World species that has reached the Old World. Congeria is mostly used for fossils, but a living species, the only cave-dwelling freshwater bivalve I know of, has been reported from the Balkans.
> Marine molluscs:
Crassostrea virginica has been deliberately introduced to Europe, but I don't know how the population is faring.
Probably many species of teredinids are invasive, but we don't know what was native where before wooden ships spread them around the globe.
I think I recall speculation that Macoma balthica might be a North American species transported to Europe by Vikings.
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
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