| Tethyidae () |
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sessile; marine |
| Northeast Atlantic and Indo-West Pacific. |
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Rounded elevations and depressions on surface, with elevations echinated by the spicules. Tesselation absent. Megasclere: rounded base; apex usually blunt but sometimes sharp; styli faintly tylote, no oxea nor strongyla. Microsclere: very small chiasters; larger and more massive spherasters. Chiasters are most abundant at the surface, forming a close layer, rays: 6 to 9. Spherasters rarely spined; unevenly scattered through the ectosome; rare in the choanosome. |
| Known from rock pools (Ref. 88951). |
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Not Evaluated (N.E.) Ref. 123251)
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