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Cifonauta
marine biology image database
11127 photos | 589 videos | 72 tags | 630 species | 89 places
1426 files founds
taxon (genus):
Clypeaster
1426 files
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Blastula
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Blastula inside the fertilization membrane
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Juvenile sea biscuit
Aboral surface (opposite to mouth).
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Pluteus larva of a sea biscuit
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Pluteus larva of a sea biscuit
Post-oral arm tip in a six-arm pluteus larva.
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Pluteus larva of a sea biscuit
Early stage with two arms (post-oral).
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Sea biscuit metamorphosis
Polarized light highlights the calcareous skeleton showing the structure of spines, podia, and remnants of the larval skeleton.
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Embryo during blastula formation
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Pluteus larva of a sea biscuit
Early eight-arm stage.
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Embryo before the second division
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First cleavage
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Pluteus larva of a sea biscuit
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Embryo with 16 cells
Lateral view.
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Pluteus larva of a sea biscuit
Stage with three pairs of arms.
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Pluteus larva of a sea biscuit
Frontal view of an early two-arm stage pluteus larva.
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Coelomocytes of a sea biscuit
Perivisceral coelom cells.
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Pluteus larva of a sea biscuit
Stage with four pairs of arms.
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Pluteus larva of a sea biscuit
Larva with four pairs of arms.
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Pluteus larva of a sea biscuit
Early stage with two arms (post-oral).
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Embryo with 2 cells
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Pluteus larva of a sea biscuit
Growth of antero-lateral pair of arms (2nd pair).
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Embryo during seventh cleavage
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Gastrula
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Blastulae
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Pluteus larva of a sea biscuit united by an arm
Found during an artificial fertilization experiment. We do not know if it is the result of abnormal development or if the larva was reproducing asexually.
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Pluteus larva of a sea biscuit
Stage with four pairs of arms.
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Ovules
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Pluteus larva of a sea biscuit
Early stage with two arms, side view.
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Blastula and unfertilized eggs
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Pluteus larva of a sea biscuit
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Células ectodérmicas durante formação da blástula de uma bolacha-do-mar
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Pluteus larva of a sea biscuit
Larva with two pairs of aarms and early development of postero-dorsal arms on the body sides.
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Pluteus larva of a sea biscuit
Epithelium.
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Juvenile sea biscuit after metamorphosis
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Gastrula
Primary mesenchymal cells secreting the larval skeleton.
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Pluteus larva of a sea biscuit
Frontal view of an early two-arm stage pluteus larva.
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Pluteus larva of a sea biscuit
Larva with four pairs of arms.
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Embryo with 16 cells
Lateral view of mesomeres.
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Juvenile sea biscuit
Aboral view.
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Pluteus larva of a sea biscuit
Early with two arms.
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