Virginia Institute of Marine Science
(...) In 1940, the ribbed mussels, Volsella demissus, of Tidewater Virginia were discovered by Du Pont chemists to be rich in this "provitamin D." This discovery was followed immediately by the development of a mussel fishery on the "Seaside" of Virginia's Eastern Shore peninsula, the activity centering on the large intertidal marshes where the mussels grow and in the shucking houses along the water fronts of shore towns where the mussels are steamed, shucked, and packed for shipment. This fishery has since constituted the country's principal available "provitamin D" source, and large war demands for eggs and poultry meat have been met by the poultry industry with the help of the previously unexploited Virginia mussels.
Because of the prospective importance of the mussel, the Du Pont company acted through the-Virginia Fisheries Laboratory in 1940 to initiate a biological study of this as yet little-known bivalve.
Ribbed mussels, Volsella demissus
Contribution (Virginia Fisheries Laboratory) ; no. 18.
Mackin, J.G. and Menzel, R. Winston, Research seeks to expand new fishery (1945). The Commonwealth, 12(2), 3-10.