Acantharia

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[ə‚kan′tha·rē·ə]

(invertebrate zoology)

A subclass of essentially pelagic protozoans in the class Actinopodea characterized by skeletal rods constructed of strontium sulfate (celestite).

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Station 1 2 Depth (m) 0 50 0 50 Species Acantharia 0 20 0 0 Nasselaria 0 20 0 0 Bacillariophyceae 60 140 1040 180 Bacteriastrum sp.

levieri, but if a teleomorph is formed it might belong to Venturia or Acantharia as indicated for other Fusicladium species.

2+], although a marine organism, an Acantharia, constructs its internal skeleton of strontium sulfate [2].