| 21. | The sandy road to San Ignacio is lined with mounds of scallop and hatchet clam shells.
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| 22. | A clam shell dredge was employed to deepen the sandbars by digging out the river bottom.
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| 23. | In prehistoric times clam shells, shark teeth, and flint were sharpened and used to shave with.
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| 24. | Pale sea anemones bore long tentacles and huge clam shells lay stark white against black lava.
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| 25. | In this way, the rostroconch shell is more like a taco shell than a clam shell.
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| 26. | Tom shakes the bottle, sending Jerry flying through the air and crashing onto a clam shell.
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| 27. | Unlike those polystyrene clam shells that used to enshroud McDonald's hamburgers, our bodies are blessedly biodegradable.
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| 28. | Ruffles potato chips and sandwiches in plastic clam shells did not exactly advance the cause of glamour.
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| 29. | And with its pair of O'Keeffe works, " Open Clam Shell " and " Closed Clam Shell,"
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| 30. | And with its pair of O'Keeffe works, " Open Clam Shell " and " Closed Clam Shell,"
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