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Transformation series of Stichopus californicus. Fully mature auricularia, 18 days old, just prior to the onset of metamorphosis. Body length 595 µ Oblique lateral view. |
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Beginning of transformation as as bands fragment. Body length 590 µ Oblique lateral view. |

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Mid-transformation, bands rearranging. Body length 400 µ Oblique lateral view. |

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Newly-formed formed doliolaria, end of the initial phase of metamorphosis. Body length 360 µ Oblique lateral view. |