Description
Skeleton simple , composed of numerous hollow , thin , and tangential needles at periphery , or composed only of radial spines with proximal ends near the central capsule ; or combinations of radial and tangential needles (Fig . 2a).
Type species
Figures
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Raw text
Skeleton simple , composed of numerous hollow , thin , and tangential needles at periphery , or composed only of radial spines with proximal ends near the central capsule ; or combinations of radial and tangential needles (Fig . 2a).