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Hexastylus thaletis Haeckel, 1887

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Shell thin walled, with smooth surface. Pores subregular, circular, hexagonally framed, somewhat funnel-shaped, of the same breadth as the bars; eight to nine on the radius. Six spines triangular pyramidal, with prominent edges, as long as the radius, three to four times as broad at the base as one pore.
Dimensions:
Diameter of the shell 0.1, pores and bars 0.005; length of the spines 0.05, basal breadth 0.02.
Haeckel 1887


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