• Bifurcaria bifurcata R.Ross, 1958: all over the year
• Bifurcaria palaeobifurcata (Givulescu) Molinari & Guiry, 2021 †: all over the year
• Clathromorphum circumscriptum (Strömfelt) Foslie, 1898: all over the year
• Clathromorphum compactum (Kjellman) Foslie, 1898: all over the year
• Clathromorphum lemoineanum M.L.Mendoza & Cabioch, 1985: all over the year
• Clathromorphum nereostratum Lebednik, 1977: all over the year
• Clathromorphum obtectulum (Foslie) W.H.Adey, 1970: all over the year
• Clathromorphum tubiforme Y.M.Chamberlain, R.E.Norris, Keats & Maneveldt, 1995: all over the year
• Clathromorphum variabile M.L.Mendoza & S.Molina: all over the year
• Coccotylus brodiaei: all over the year
• Coccotylus brodiei (Turner) Kützing, 1843: all over the year
• Coccotylus hartzii (Rosenvinge) Le Gall & G.W.Saunders, 2010: all over the year
• Coccotylus orientalis (A.D.Zinova & Makienko) Perestenko, 1994: all over the year
• Coccotylus truncatus (Pallas) M.J.Wynne & J.N.Heine, 1992: all over the year
• Codium acuminatum O.Schmidt, 1923: all over the year
• Codium adhaerens C.Agardh, 1822: all over the year
• Codium afaqhusainii M.Nizamuddin, 2001: all over the year
• Codium aliyae M.Nizamuddin: all over the year
• Codium amplivesiculatum Setchell & N.L.Gardner, 1924: all over the year
• Codium apiculatum P.C.Silva, M.E.Chacana & H.B.S Womersley, 2012: all over the year
• Codium arabicum Kützing, 1856: all over the year
• Codium arenicola M.E.Chacana & P.C.Silva, 2014: all over the year
• Codium australicum P.C.Silva, 1956: all over the year
• Codium barbatum Okamura, 1930: all over the year
• Codium bartlettii C.K.Tseng & W.J.Gilbert, 1942: all over the year
• Codium bernabei A.V.González, M.E.Chacana & P.C.Silva, 2012: all over the year
• Codium bilobum M.Nizamuddin, 2000: all over the year
• Codium boergesenii M.Nizamuddin, 2001: all over the year
• Codium brandegeei Setchell & N.L.Gardner, 1924: all over the year
• Codium bursa (Olivi) C.Agardh, 1817: all over the year
• Codium campanulatum P.C.Silva & M.E.Chacana, 2013: all over the year
• Codium capitatum P.C.Silva, 1959: all over the year
• Codium capitulatum P.C.Silva & Womersley, 1956: all over the year
• Codium carolinianum Searles, 1972: all over the year
• Codium cerebriforme Setchell, 1937: all over the year
• Codium chazaliei Weber Bosse: all over the year
• Codium cicatrix P.C.Silva, 1959: all over the year
• Codium clypiatum J.Agardh: all over the year
• Codium coactum Okamura, 1902: all over the year
• Codium compressum Biasoletto: all over the year
• Codium contractum Kjellman, 1897: all over the year
• Codium convolutum (Dellow) P.C.Silva, 1962: all over the year
• Codium coralloides (Kützing) P.C.Silva, 1960: all over the year
• Codium corymbosum M.Nizamuddin, 1991: all over the year
• Codium cranwelliae Setchell, 1940: all over the year
• Codium cylindricum Holmes, 1896: all over the year
• Codium damicorne (Bory) Kützing: all over the year
• Codium dawsonii P.C.Silva, Pedroche, M.E.Chacana & K.A.Miller, 2014: all over the year
• Codium decorticatum (Woodward) M.A.Howe, 1911: all over the year
• Codium decumbens Martius, 1833: all over the year
• Codium desultorium P.C.Silva & M.E.Chacana, 2013: all over the year
• Codium dilatatum (Rafinesque) Delle Chiaje: all over the year
• Codium dimorphum Svedelius, 1900: all over the year
• Codium distichium A.C.Brown & N.Jarman: all over the year
• Codium distichum A.C.Brown & N.Jarman: all over the year
• Codium duthieae P.C.Silva, 1956: all over the year
• Codium dwarkense Børgesen, 1947: all over the year
• Codium edule P.C.Silva, 1952: all over the year
• Codium effusum (Rafinesque) Delle Chiaje, 1829: all over the year
• Codium elisabethiae O.C.Schmidt, 1929: all over the year
• Codium extricatum P.C.Silva, 1959: all over the year
• Codium faridii M.Nizamuddin: all over the year
• Codium fastigiatum M.Nizamuddin, 2001: all over the year
• Codium fernandezianum Setchell, 1937: all over the year
• Codium filiforme Montagne: all over the year
• Codium fimbriatum M.Nizamuddin, 2000: all over the year
• Codium flabellatum P.C.Silva ex M.Nizamuddin, 2001: all over the year
• Codium flagellare Agardh: all over the year
• Codium formosanum Yamada, 1950: all over the year
• Codium foveolatum M.Howe, 1914: all over the year
• Codium fragile (Suringar) Hariot, 1889: all over the year
• Codium galeatum J.Agardh, 1887: all over the year
• Codium geppii O. C. Schmidt, 1923: all over the year
• Codium geppiorum O.C.Schmidt, 1923: all over the year
• Codium gerloffii M.Nizamuddin, 2000: all over the year
• Codium giraffa P.C.Silva, 1979: all over the year
• Codium globosum A.H.S.Lucas, 1927: all over the year
• Codium gongylocephalum Kraft, 2007: all over the year
• Codium gracile (O.C.Schmidt) Dellow, 1952: all over the year
• Codium guineënse P.C.Silva ex G.W.Lawson & D.M.John, 1982: all over the year
• Codium harveyanum Stechell: all over the year
• Codium harveyi P.C.Silva, 1956: all over the year
• Codium hawaiiense P.C.Silva & M.E.Chacana, 2013: all over the year
• Codium hawkesbayense M.Nizamuddin, 2001: all over the year
• Codium hubbsii E.Y.Dawson, 1950: all over the year
• Codium incognitum P.C.Silva, 1959: all over the year
• Codium indicum S.C.Dixit, 1940: all over the year
• Codium inerme P.C.Silva, 2004: all over the year
• Codium intermedium P.C.Silva & M.E.Chacana, 2013: all over the year
• Codium intertextum Collins & Hervey, 1917: all over the year
• Codium intricatum Okamura, 1913: all over the year
• Codium isaacii P.C.Silva, 1959: all over the year
• Codium isabelae W.R.Taylor, 1945: all over the year
• Codium islamii M.Nizamuddin: all over the year
• Codium isthmocladum Vickers, 1905: all over the year
• Codium johnstonei P.C.Silva, 1951: all over the year
• Codium kajimurae P.C.Silva & M.E.Chacana, 2003: all over the year
• Codium kashiwajimanum Yamada: all over the year
• Codium laevigatum M.Nizamuddin: all over the year
• Codium laminarioides Harvey, 1855: all over the year