The thick c.s. of sponge, with spicules in place, to demonstrate relation of spicules to canal system.
While supplies last. As of 3/28/12, 17 each in stock.
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The thick c.s. of sponge, with spicules in place, to demonstrate relation of spicules to canal system. While supplies last. As of 3/28/12, 17 each in stock.
The thick c.s. of sponge, with spicules in place, to demonstrate relation of spicules to canal system.
While supplies last. As of 3/28/12, 17 each in stock.