• Sporochnus C.Agardh, 1817
• Sporochnus aculeatus (Linnaeus) C.Agardh, 1817 accepted as Desmarestia aculeata (Linnaeus) J.V.Lamouroux, 1813
• Sporochnus aculeatus var. complanatus C.Agardh, 1820 accepted as Desmarestia aculeata (Linnaeus) J.V.Lamouroux, 1813
• Sporochnus aculeatus var. plumosus Suhr, 1834 accepted as Desmarestia aculeata (Linnaeus) J.V.Lamouroux, 1813
• Sporochnus adriaticus C.Agardh, 1827
• Sporochnus anomalus (Pallas) M.J.Wynne, 2003
• Sporochnus apodus Harvey, 1859
• Sporochnus bolleanus Montagne, 1856
• Sporochnus cabrerae (Clemente) C.Agardh, 1821 accepted as Carpomitra costata (Stackhouse) Batters, 1902
• Sporochnus comosus C.Agardh, 1824
• Sporochnus cryptocephalus Kützing, 1859 accepted as Sporochnus radiciformis (R.Brown ex Turner) C.Agardh, 1817
• Sporochnus decompositus J.Agardh, 1896 accepted as Sporochnus comosus C.Agardh, 1824
• Sporochnus dichotomus Zanardini, 1861 accepted as Carpomitra costata var. mediterranea (Feldmann) Feldmann, 1937
• Sporochnus dotyi Brostoff, 1984
• Sporochnus elsieae Lindauer, 1960
• Sporochnus gaertnera C.Agardh, 1820 accepted as Sporochnus anomalus (Pallas) M.J.Wynne, 2003
• Sporochnus gaertneri Kützing, 1843 accepted as Sporochnus anomalus (Pallas) M.J.Wynne, 2003
• Sporochnus gracilis J.Agardh, 1896 accepted as Sporochnus comosus C.Agardh, 1824
• Sporochnus harveyanus J.Agardh, 1896 accepted as Sporochnus comosus C.Agardh, 1824
• Sporochnus herbaceus (Lamouroux) C.Agardh, 1821 accepted as Desmarestia herbacea (Turner) J.V.Lamouroux, 1813
• Sporochnus herbaceus var. firma C.Agardh, 1824 accepted as Desmarestia herbacea subsp. firma (C.Agardh) A.F.Peters, E.C.Yang, F.C.Küpper & Prud'Homme van Reine, 2014
• Sporochnus herculeus J.Agardh, 1848 accepted as Sporochnus comosus C.Agardh, 1824
• Sporochnus ligulatus (Lightfoot) C.Agardh, 1820 accepted as Desmarestia ligulata (Stackhouse) J.V.Lamouroux, 1813
• Sporochnus ligulatus var. distans C.Agardh, 1824 accepted as Desmarestia ligulata subsp. ligulata f. distans (C.Agardh) A.F.Peters, E.C.Yang, F.C.Küpper & Prud'homme van Reine, 2014
• Sporochnus ligulatus var. firmus C.Agardh, 1824 accepted as Desmarestia ligulata var. firma (C.Agardh) J.Agardh, 1848
• Sporochnus medius C.Agardh, 1820 accepted as Desmarestia aculeata var. media (C.Agardh) J.Agardh, 1846
• Sporochnus moorei Harvey, 1858
• Sporochnus neushulii J.N.Norris, 2010
• Sporochnus obovatus Kützing, 1859 accepted as Sporochnus radiciformis (R.Brown ex Turner) C.Agardh, 1817
• Sporochnus pedunculatus (Hudson) C.Agardh, 1817
• Sporochnus pennatula Pöppig ex Sprengel, 1827 accepted as Grateloupia filicina (J.V.Lamouroux) C.Agardh, 1822
• Sporochnus radiciformis (R.Brown ex Turner) C.Agardh, 1817
• Sporochnus rhizodes (C.Agardh) C.Agardh, 1820 accepted as Stilophora tenella (Esper) P.C.Silva, 1996
• Sporochnus rhizodes var. paradoxus (Roth) C.Agardh, 1824 accepted as Spermatochnus paradoxus (Roth) Kützing, 1843
• Sporochnus rostratus W.R.Taylor, 1945
• Sporochnus scoparius Harvey, 1855 accepted as Sporochnus radiciformis (R.Brown ex Turner) C.Agardh, 1817
• Sporochnus sphaerocephalus Kützing, 1859 accepted as Sporochnus radiciformis (R.Brown ex Turner) C.Agardh, 1817
• Sporochnus stylosus Harvey, 1855
• Sporochnus verrucosus Zanardini, 1843 (uncertain)
• Sporochnus verticillatus C.Agardh, 1827
• Sporochnus villosus (Hudson) C.Agardh, 1824 accepted as Arthrocladia villosa (Hudson) Duby, 1830
• Sporochnus viridis (O.F.Müller) Greville, 1830 accepted as Desmarestia viridis (O.F.Müller) J.V.Lamouroux, 1813
• Sporochnus viridis var. major C.Agardh, 1820 accepted as Spinularius major (C.Agardh) Ruprecht, 1850