See text Tethya is a genus of sea sponges belonging to the family Tethyidae.

[1] Members of this genus all have a spherical body form[2] and some are known to be able to move at speeds of between 1 and 4 mm per day.

[3] The following species are recognised in the genus Tethya:[1] This article about a demosponge is a stub.

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