Tethya [SEP] parent taxon
Tethya
Tethya is a genus of  sea sponges belonging to the family Tethyidae. Members of this genus all have a spherical body form and some are known to be able to move at speeds of between 1 and 4 mm per day.
Species.
Species in this genus include:
- "Tethya actinia"
- "Tethya acuta"
- "Tethya amplexa"
- "Tethya andamanensis"
- "Tethya asbestella"
- "Tethya aurantium"
- "Tethya beatrizae"
- "Tethya bergquistae"
- "Tethya bitylastra"
- "Tethya boeroi"
- "Tethya brasiliana"
- "Tethya bullae"
- "Tethya burtoni"
- "Tethya californiana"
- "Tethya citrina"
- "Tethya coccinea"
- "Tethya communis"
- "Tethya comorensis"
- "Tethya compacta"
- "Tethya cyanae"
- "Tethya deformis"
- "Tethya dendyi"
- "Tethya densa"
- "Tethya diploderma