Encyclopedia > Radiolaria

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The radiolaria comprise three groups of amoeboids protists which form intricate mineral skeletons. They feed and move by means of axopods, and have a frothy ectoplasm often including symbiotic zooxanthellae, which is separated by a central capsule. Among the Polycystinea[?] and Phaeodarea[?], the skeleton is made of silica and sometimes organic materials, but among the less common Acantharea it is made of strontium sulfate.

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... is a French département, number 57, named after the Moselle River. Préfecture (capital): Metz. Sous-préfectures: Boulay Moselle[?], Château Salins[?], ...