| 21. | This is peculiar given that most other early shark fossils show evidence of claspers.
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| 22. | The pelvic fins are small with rounded margins; claspers are found on males.
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| 23. | The pelvic fins are low; adult males have rather short, thick claspers.
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| 24. | This shrimp feeds using its feather like claspers to filter particles from the water.
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| 25. | The pelvic fins are small, with elongate, relatively short claspers in males.
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| 26. | Adult males have blue coloring on top and at the tip of the claspers.
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| 27. | Adult males have very short and thick claspers.
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| 28. | The pelvic fins are roughly triangular; the males have short, thick claspers.
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| 29. | Habiro found 12 moves which relate claspers along which surgery gives the same result.
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| 30. | First somite and anal claspers are crimson colored.
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