Cifonauta

marine biology image database

11127 photos | 589 videos | 72 tags | 630 species | 89 places

2447 files founds

taxon (phylum):

Echinodermata

2447 files

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Sea cucumber

Blastula.

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Pluteus larva of a sea biscuit

Larva with six arms.

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Brittle star

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Prism larva

Skeleton formation of post-oral arms.

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Pluteus

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Prism larva

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Sea cucumber

Blastula.

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Pluteus larva of a sea biscuit

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Brittle star

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Sea cucumber

Blastula.

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Ectodermic cells during blastula formation

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Feather star

Pentacrinoid larva of a feather star on a hydroid (Eudendrium carneum).

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Juvenile sea biscuit

Podia and spine.

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Pluteus larva of a sea biscuit

Early with two arms.

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Blastulae

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Juvenile sea biscuit after metamorphosis

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Pencil sea urchin

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Four-cell stage embryo

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Black sea urchin

Detail of oral region.

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Sand dollar

The sand dollar Encope emarginata is found on soft sediments in the intertidal and subtidal zones

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Juvenile sea biscuit

Aboral region.

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Four-cell stage embryo

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Embryo with 56 cells

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Pluteus larva of a sea biscuit

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Black sea urchin

Detail of oral region.

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Pluteus larva of a sea biscuit

Early with two arms.

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Sea cucumber

Blastula.

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Gastrula

Primary mesenchymal cells secreting the larval skeleton.

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Pluteus larva of a sea biscuit

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Pluteus larva of a sea biscuit

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Sand dollar

Zygote.

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Feather star

Pentacrinoid larva of a feather star on a hydroid (Eudendrium carneum).

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Pluteus larva of a sea biscuit

Early with two arms.

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Juvenile sea biscuit

Oral region.

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Sea cucumber

Adult specimen. Detail of body wall and ossicles.

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Blastula

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Four-cell stage embryo

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Brittle star

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Ovule

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Becher with sea biscuit swimming gastrulae

After artificial fertilization and raising embryos in the laboratory, blastulae hatch from the vitelline membrane and begin to swim. Development occurs in the water column from gastrulation to pluteus larva stage until metamorphosis.

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