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| Fingernail clam. The structures to the left are the incurrent and excurrent siphons through which the clam moves water for oxygen and food. Clams filter small particles from the water as a food source. The structure at the top is the muscular foot for movement. Fingernail clams are less than the size of a ... fingernail. | |
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Total images: 21 | Vernal Pool Association | Help