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(english) Unicellular algae with silica walls; microscopic single-celled algae which have two ornate interfitting outer shells containing silica. (See also: algae)
(french) Algue unicellulaire avec des membranes siliceuse; algue microscopique unicellulaire qui a deux coquilles externes ornés et rapportables qui contiennent la silice. (See also: algae)
(portuguese) Algas unicelulares com paredes de sílica. (See also: algae)

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