Marphysa is een geslacht van borstelwormen uit de familie van de Siboglinidae. De wetenschappelijke naam van het geslacht werd voor het eerst geldig gepubliceerd in 1866 door Quatrefages.
Soorten De volgende soorten zijn bij het geslacht ingedeeld: Marphysa acicularum Webster, 1884 Marphysa aegypti Elgetany, El-Ghobashy, Ghoneim & Struck, 2018 Marphysa aenea (Blanchard in Gay, 1849) Marphysa angelensis Fauchald, 1970 Marphysa aransensis Treadwell, 1939 Marphysa atlantica (Kinberg, 1865) Marphysa bernardi Rullier, 1972 Marphysa bifurcata Kott, 1951 Marphysa bonhardi (McIntosh, 1885) Marphysa borradailei Pillai, 1958 Marphysa brasiliensis (Hansen, 1882) Marphysa brevitentaculata Treadwell, 1921 Marphysa californica Moore, 1909 Marphysa capensis (Schmarda, 1861) Marphysa chevalensis Willey, 1905 Marphysa chirigota Martin, Gil & Zanol in Martin et al. 2020 Marphysa corallina (Kinberg, 1865) Marphysa depressa (Schmarda, 1861) Marphysa digitibranchia Hoagland, 1920 Marphysa elityeni Lewis & Karageorgopoulos, 2008 Marphysa emiliae Molina-Acevedo & Carrera-Parra, 2017 Marphysa fauchaldi Glasby & Hutchings, 2010 Marphysa formosa Steiner & Amaral, 2000 Marphysa fragilis Treadwell, 1911 Marphysa furcellata Crossland, 1903 Marphysa gaditana Martin, Gil & Zanol in Martin et al. 2020 Marphysa galluccii Orensanz, 1990 Marphysa gayi Quatrefages, 1866 Marphysa gravelyi Southern, 1921 Marphysa hamata (Schmarda, 1861) Marphysa hemasoma Quatrefages, 1866 Marphysa hongkongensa Wang, Zhang & Qiu, 2018 Marphysa iloiloensis Glasby, Mandario, Burghardt, Kupriyanova, Gunton & Hutchings, 2019 Marphysa januarii (Grube, 1881) Marphysa johnsoni (Langerhans, 1880) Marphysa kristiani Zanol, da Silva & Hutchings, 2016 Marphysa macintoshi Crossland, 1903 Marphysa mangeri Augener, 1918 Marphysa mauritanica Gillet, 1990 Marphysa maxidenticulata Liu, Hutchings & Kupriyanova, 2018 Marphysa minima (Hansen, 1882) Marphysa moribidii Idris, Hutchings & Arshad, 2014 Marphysa mortenseni Monro, 1928 Marphysa mossambica (Peters, 1854) Marphysa mullawa Hutchings & Karageorgopoulis, 2003 Marphysa multipectinata Liu, Hutchings & Sun, 2017 Marphysa nobilis Treadwell, 1917 Marphysa orensanzi Carrera-Parra & Salazar-Vallejo, 1998 Marphysa orientalis Treadwell, 1936 Marphysa parvipes (Benham, 1927) Marphysa peruviana Quatrefages, 1866 Marphysa posterobranchia Day, 1962 Marphysa proppi (Averincev, 1972) Marphysa pseudosessiloa Zanol, da Silva & Hutchings, 2017 Marphysa quadrioculata (Grube, 1856) Marphysa regalis Verrill, 1900 Marphysa sanguinea (Montagu, 1813) Marphysa saxicola Langerhans, 1881 Marphysa schmardai Gravier, 1907 Marphysa sebastiana Steiner & Amaral, 2000 Marphysa sessilobranchiata Hartmann-Schröder, 1984 Marphysa simplex (Langerhans, 1884) Marphysa soembaensis Augener, 1933 Marphysa striata (Kinberg, 1865) Marphysa stylobranchiata Moore, 1909 Marphysa tamurai Okuda, 1934 Marphysa teres (Treadwell, 1922) Marphysa teretiuscula (Schmarda, 1861) Marphysa tribranchiata Liu, Hutchings & Sun, 2017 Marphysa tripectinata Liu, Hutchings & Sun, 2017 Marphysa unibranchiata Knox & Cameron, 1970 Marphysa victori Lavesque, Daffe, Bonifácio & Hutchings, 2017 Marphysa viridis Treadwell, 1917
Taxon inquirendum Marphysa grunwaldi (Risso, 1826) Marphysa pacifica (Rullier, 1972) Marphysa triantennata (Risso, 1826)
Nomen nudum Marphysa corallina Ehlers, 1901
Synoniemen Marphysa posteriobranchia Day, 1962 ⇒ Marphysa posterobranchia Day, 1962 Marphysa adenensis Gravier, 1900 ⇒ Paucibranchia adenensis (Gravier, 1900) Marphysa amadae Fauchald, 1977 ⇒ Treadwellphysa amadae (Fauchald, 1977) Marphysa angeli Carrera-Parra & Salazar-Vallejo, 1998 ⇒ Nicidion angeli (Carrera-Parra & Salazar-Vallejo, 1998) Marphysa antipathum Pourtalès, 1867 ⇒ Eunice antipathum (Pourtalès, 1867) Marphysa belli [auctt.] ⇒ Marphysa bellii (Audouin & Milne Edwards, 1833) ⇒ Paucibranchia bellii (Audouin & Milne Edwards, 1833) Marphysa bellii (Audouin & Milne Edwards, 1833) ⇒ Paucibranchia bellii (Audouin & Milne Edwards, 1833) Marphysa bulla Liu, Hutchings & Kupriyanova, 2018 ⇒ Marphysa victori Lavesque, Daffe, Bonifácio & Hutchings, 2017 Marphysa capensis Fauvel, 1950 ⇒ Marphysa corallina (Kinberg, 1865) Marphysa cinari Kurt-Sahin, 2014 ⇒ Paucibranchia cinari (Kurt-Sahin, 2014) Marphysa conferta Moore, 1911 ⇒ Paucibranchia conferta (Moore, 1911) Marphysa dartevellei Monro, 1936 ⇒ Treadwellphysa dartevellei (Monro, 1936) Marphysa disjuncta Hartman, 1961 ⇒ Paucibranchia disjuncta (Hartman, 1961) Marphysa durbanensis Day, 1934 ⇒ Marphysa macintoshi Crossland, 1903 Marphysa escobarae Salazar-Vallejo & Carrera-Parra, 1997 ⇒ Marphysa fragilis Treadwell, 1911 Marphysa fallax Marion & Bobretzky, 1875 ⇒ Paucibranchia fallax (Marion & Bobretzky, 1875) Marphysa floridana Pourtalès, 1867 ⇒ Eunice floridana (Pourtalès, 1867) Marphysa gemmata Mohammad, 1973 ⇒ Paucibranchia gemmata (Mohammad, 1973) Marphysa goodsiri McIntosh, 1885 ⇒ Eunice goodsiri (McIntosh, 1885) Marphysa haemasoma Quatrefages, 1866 ⇒ Marphysa sanguinea (Montagu, 1813) Marphysa hentscheli Augener, 1931 ⇒ Nicidion hentscheli (Augener, 1931) Marphysa iwamushi Izuka, 1907 ⇒ Marphysa sanguinea (Montagu, 1813) Marphysa kinbergi McIntosh, 1910 ⇒ Paucibranchia kinbergi (McIntosh, 1910) Marphysa languida Treadwell, 1921 ⇒ Treadwellphysa languida (Treadwell, 1921) Marphysa leidii Quatrefages, 1866 ⇒ Marphysa sanguinea (Montagu, 1813) Marphysa longula (Ehlers, 1887) ⇒ Nicidion longula (Ehlers, 1887) Marphysa mcintoshi [misspelling of macintoshi] ⇒ Marphysa macintoshi Crossland, 1903 Marphysa mixta Fauchald, 1970 ⇒ Treadwellphysa mixta (Fauchald, 1970) Marphysa parishii Baird, 1869 ⇒ Marphysa sanguinea (Montagu, 1813) Marphysa purcellana Willey, 1904 ⇒ Paucibranchia purcellana (Willey, 1904) Marphysa simplex Crossland, 1903 ⇒ Marphysa teretiuscula (Schmarda, 1861) Marphysa simplex Treadwell, 1922 ⇒ Marphysa mossambica (Peters, 1854) Marphysa sinensis Monro, 1934 ⇒ Paucibranchia sinensis (Monro, 1934) Marphysa stragulum (Grube, 1878) ⇒ Paucibranchia stragulum (Grube, 1878) Marphysa tibiana Pourtalès, 1867 ⇒ Eunice tibiana (Pourtalès, 1867) Marphysa totospinata Lu & Fauchald, 1998 ⇒ Paucibranchia totospinata (Lu & Fauchald, 1998) Marphysa veracruzensis de Léon-González & Castañeda, 2006 ⇒ Treadwellphysa veracruzensis (de León-González & Castañeda, 2006)