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Cifonauta
marine biology image database
11127 photos | 589 videos | 72 tags | 630 species | 89 places
1558 files founds
taxon (order):
Clypeasteroida
1558 files
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Pluteus larva of a sea biscuit
Early stage with two arms. Detail of a post-oral arm.
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Pluteus larva of a sea biscuit
Early stage with two arms (post-oral).
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Pluteus larva of a sea biscuit
Growth of antero-lateral pair of arms (2nd pair).
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Ectodermic cells during blastula formation
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Juvenile sea biscuit after metamorphosis
Ossicles of the lantern of Aristotle in formation at the oral region.
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Embryos initiating the first cleavage
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Ectoderm
Many cells with red granules are distributed in the epithelium of the gastrula.
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Pluteus larva of a sea biscuit
Post-oral arms of a six-arm pluteus larva.
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Embryo with 8 cells
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Gastrula
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Juvenile sea biscuit
Structure in the anal region.
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Pluteus larva of a sea biscuit
Stage with four pairs of arms.
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Juvenile sea biscuit
Oral region with the lantern of Aristotle in formation.
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Juvenile sea biscuit
Aboral surface (opposite to mouth).
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Juvenile sea biscuit
Anus on the juvenile aboral surface (red curved structure).
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Pluteus larva of a sea biscuit
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Embryo with 16 cells
Lateral view of mesomeres.
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Blastula
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Malformed blastula
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Juvenile sea biscuit after metamorphosis
Remnants of the larval skeleton in the aboral region of the juvenile.
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Juvenile sea biscuit
Aboral surface.
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Embryo with 32 cells
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Sand dollar
Zygote.
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Pluteus larva of a sea biscuit
Larva with four pairs of arms.
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Juvenile sea biscuit
Oral region with the lantern of Aristotle in formation.
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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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Sea biscuit gamete release (spawning)
Sperm release by genital papillae.
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Pluteus larva of a sea biscuit
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Ovule
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Juvenile sea biscuit
Podia and spine.
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Embryos initiating the first cleavage
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Pluteus larva of a sea biscuit
Post-oral arm tip in a six-arm pluteus larva.
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Embryo during blastula formation
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Pluteus larva of a sea biscuit
Early 2-arm stage showing the gut between the developing coelomic sacs.
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Pluteus larva of a sea biscuit
Larva with six arms.
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Pluteus larva of a sea biscuit
Microalgae in the larval gut.
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Juvenile sea biscuit
Aboral region.
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Pluteus larva of a sea biscuit
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