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Figure 5.

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Mean normal valve gape compared with the maximum valve gape of five different female N. novaezelandiae hosts during male crab entrance. The combined mean normal valve gape of 3.6 mm (±0.63 SE) differed significantly (Student’s t-test, P < 0.001) from the mean valve gape during male crab entrance 5.5 mm (±0.48 SE).
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