Those elusive coeloms, once so difficult to image, are now taking over the innards of our
Patiria miniata. What started as tiny little "
blebs" of mesoderm pinched off of the archenteron, now occupy a large fraction of the larva's volume. These coeloms, previous referred to as either the somatocoel/axocoel/hydrocoel or anterior/posterior coelom, flank the esophagus, before joining together in the diminished blastocoelic space.
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| P. miniata 1 week post-fertilization (10X) |
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| P. miniata ~2.5 weeks post fertilization (20X) |
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