title: Tethya
text: # 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
  
  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 Lamarck, 1815
  * Tethya aurantium (Pallas, 1766)
  * Tethya beatrizae Ribeiro & Muricy, 2011
  * Tethya bergquistae Hooper, 1994
  * Tethya bitylastra Mácola & Menegola, 2018
  * Tethya boeroi Sarà, 1992
  * Tethya brasiliana Ribeiro & Muricy, 2004
  * Tethya bullae Bergquist & Kelly-Borges, 1991
  * Tethya burtoni Sarà & Sarà, 2004
  * Tethya californiana de Laubenfels, 1932
  * Tethya citrina Sarà & Melone, 1965
  * Tethya coccinea Bergquist & Kelly-Borges, 1991
  * Tethya communis Bergquist & Kelly-Borges, 1991
  * Tethya comorensis Sarà, Corriero & Bavestrello, 1993
  * Tethya compacta Bergquist, 1961
  * Tethya cyanae Ribeiro & Muricy, 2004
  * Tethya deformis Thiele, 1898
  * Tethya dendyi Sarà & Sarà, 2004
  * Tethya densa Sarà, 1992
  * Tethya diploderma Schmidt, 1870
  * Tethya ensis Sarà, Gómez & Sarà, 2001
  * Tethya expansa Sarà & Sarà, 2004
  * Tethya fastigiata Bergquist & Kelly-Borges, 1991
  * Tethya fissurata Lendenfeld, 1888
  * Tethya flexuosa Sarà & Sarà, 2004
  * Tethya gigantea (Lendenfeld, 1888)
  * Tethya globostellata Lendenfeld, 1897
  * Tethya globum Duchassaing & Michelotti, 1864
  * Tethya gracilis Sarà, Sarà, Nickel & Brümmer, 2001
  * Tethya gunni Sarà & Sarà, 2004
  * Tethya hibernica Heim, Nickel, Picton & Brümmer, 2007
  * Tethya hooperi Sarà & Sarà, 2004
  * Tethya ignis Ribeiro & Muricy, 2004
  * Tethya ingalli Bowerbank, 1858
  * Tethya irisae Sorokin, Ekins, Yang & Cárdenas, 2019
  * Tethya irregularis Sarà & Bavestrello, 1998
  * Tethya japonica Sollas, 1888
  * Tethya laevis (Lendenfeld, 1888)
  * Tethya levii Sarà, 1988
  * Tethya leysae Heim & Nickel, 2010
  * †Tethya logani Dawson, 1857
  * Tethya magna Kirkpatrick, 1903
  * Tethya maza Selenka, 1879
  * Tethya melinka Hajdu, Desqueyroux-Faúndez, Carvalho, Lôbo-Hajdu & Willenz, 2013
  * Tethya meloni Corriero, Gadaleta & Bavestrello, 2015
  * Tethya mexicana Sarà, Gómez & Sarà, 2001
  * Tethya microstella Sarà, 1990
  * Tethya minuta Sarà, Sarà, Nickel & Brümmer, 2001
  * Tethya monstrosa (Burton, 1924)
  * Tethya mortoni Bergquist & Kelly-Borges, 1991
  * Tethya multifida (Carter, 1882)
  * Tethya multistella Lendenfeld, 1888
  * Tethya nicolae Ribeiro & Muricy, 2011
  * Tethya norvegica Bowerbank, 1872
  * Tethya novaecaledoniae Sarà, 1988
  * Tethya nux (Selenka, 1867)
  * Tethya omanensis Sarà & Bavestrello, 1995
  * Tethya ornata Sarà, Bavestrello & Calcinai, 2000
  * Tethya orphei Sarà, 1990
  * Tethya ovum Sarà, Gómez & Sarà, 2001
  * Tethya papillosa (Thiele, 1905)
  * Tethya paroxeata Sarà, Gómez & Sarà, 2001
  * Tethya parvistella (Baer, 1906)
  * Tethya parvula Ribeiro & Muricy, 2011
  * Tethya pellis Bergquist & Kelly-Borges, 1991
  * Tethya peracuata (Topsent, 1918)
  * Tethya popae Bergquist & Kelly-Borges, 1991
  * Tethya pulchra Sarà, 1992
  * Tethya pulitzeri Sarà & Sarà, 2004
  * Tethya robusta (Bowerbank, 1873)
  * Tethya rubra Samaai & Gibbons, 2005
  * Tethya samaaii Ribeiro & Muricy, 2011
  * Tethya sarai Desqueyroux-Faúndez & van Soest, 1997
  * Tethya seychellensis (Wright, 1881)
  * Tethya simi Sarà, Bavestrello & Calcinai, 2000
  * Tethya socius Sarà, Gómez & Sarà, 2001
  * Tethya solangeae Ribeiro & Muricy, 2011
  * Tethya sollasi Bergquist & Kelly-Borges, 1991
  * Tethya songakensis Kim & Sim, 2005
  * Tethya stellagrandis (Dendy, 1916)
  * Tethya stellodermis Sarà & Sarà, 2004
  * Tethya stolonifera Bergquist & Kelly-Borges, 1991
  * Tethya strongylata Sarà, Bavestrello & Calcinai, 2000
  * Tethya taboga (de Laubenfels, 1936)
  * Tethya tasmaniae Sarà & Sarà, 2004
  * Tethya tenuisclera Sarà & Corriero, 1994
  * Tethya topsenti Sarà, Bavestrello & Calcinai, 2000
  * Tethya uljinensis Shim & Sim, 2008
  * Tethya vacua Austin, Ott, Reiswig, Romagosa & McDaniel, 2014
  * Tethya varians Sarà & Bavestrello, 1998
  * Tethya viridis (Baer, 1906)
  * Tethya wilhelma Sarà, Sarà, Nickel & Brümmer, 2001
  