''Tethya'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of sea sponges belonging to the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Tethyidae Tethyidae is a family of sea sponges belonging to the order Tethyida. ReferencesTethyidae
at

Members of this genus all have a spherical body formBranch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. ''Two Oceans: a guide to the marine life of southern Africa'' and some are known to be able to move at speeds of between 1 and 4 mm per day.Ruppert, E.E., Fox, R.S. and Barnes, R.D. 2004. ''Invertebrate Zoology''

Species

The following species are recognised in the genus ''Tethya'': * '' Tethya actinia'' de Laubenfels, 1950 * '' Tethya acuta'' Sarà & Sarà, 2004 * '' Tethya amplexa'' Bergquist & Kelly-Borges, 1991 * '' Tethya andamanensis'' Dendy & Burton, 1926 * ''

Tethya asbestella ''Tethya'' is a genus of sea sponges belonging to the family Tethyidae. Members of this genus all have a spherical body formBranch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. ''Two Oceans: a guide to the marine life of southern ...

'' Lamarck, 1815 * ''

Tethya aurantium ''Tethya aurantium'', also known as the golf ball sponge or orange puffball sponge, is a species of sea sponge belonging to the family Tethyidae. It is spherical in shape, with a warty surface, and grows to about 10 cm in diameter. Oscula a ...

'' (Pallas, 1766) * ''

Tethya beatrizae ''Tethya'' is a genus of sea sponges belonging to the family (biology), family Tethyidae. Members of this genus all have a spherical body formBranch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. ''Two Oceans: a guide to the marine ...

'' Ribeiro & Muricy, 2011 * ''