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USNM 1499583 - Specimen Image; Field number: SERCINVERT2894
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USNM 1499584 - Specimen Image; Field number: SERCINVERT2895
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USNM 1499679 - Specimen Image; Field number: SERCINVERT2990
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USNM 1499681 - Specimen Image; Field number: SERCINVERT2992
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USNM 1499680 - Specimen Image; Field number: SERCINVERT2991
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Plate 17
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Plate 19
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Plate 19
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Plate 18
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Plate 17
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Plate 17
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Plate 16