• Emplectonema Stimpson, 1857
• Emplectonema antonina (Quatrefages, 1846) accepted as Tetranemertes antonina (Quatrefages, 1846)
• Emplectonema bocki Brunberg, 1957
• Emplectonema bonhourei (Joubin, 1904)
• Emplectonema buergeri Coe, 1901 accepted as Neesia buergeri (Coe, 1901)
• Emplectonema bürgeri Coe, 1901 accepted as Emplectonema buergeri Coe, 1901 accepted as Neesia buergeri (Coe, 1901)
• Emplectonema camillea accepted as Emplectonema neesii (Örsted, 1843) accepted as Neesia neesii (Örsted, 1843)
• Emplectonema carcinophilon (Kölliker, 1845) accepted as Carcinonemertes carcinophila (Kölliker, 1845)
• Emplectonema derjugini Ushakov, 1928 accepted as Neesia derjugini (Ushakov, 1928)
• Emplectonema duoni (Joubin, 1890)
• Emplectonema echinoderma (Marion, 1873)
• Emplectonema flavens (Bürger, 1896)
• Emplectonema francisca (Joubin & François, 1892)
• Emplectonema friederichi Sánchez, 1973
• Emplectonema giganteum (Verrill, 1873)
• Emplectonema gracile (Johnston, 1837)
• Emplectonema intestinalis Friedrich, 1958
• Emplectonema kandai Kato, 1939 accepted as Tetranemertes kandai (Kato, 1939)
• Emplectonema marioni (Hubrecht, 1879)
• Emplectonema mitsuii Yamaoka, 1947
• Emplectonema neesi accepted as Emplectonema neesii (Örsted, 1843) accepted as Neesia neesii (Örsted, 1843)
• Emplectonema neesii (Örsted, 1843) accepted as Neesia neesii (Örsted, 1843)
• Emplectonema nordgaardi (Punnett, 1903)
• Emplectonema ophiocephala (Schmarda, 1859)
• Emplectonema ophiocephalum accepted as Emplectonema ophiocephala (Schmarda, 1859)
• Emplectonema osceolai Corrêa, 1961
• Emplectonema purpuratum Coe, 1905
• Emplectonema quatrefagei (Rochebrune, 1881)
• Emplectonema rubea Korotkevich, 1977 accepted as Neesia rubea (Korotkevich, 1977)
• Emplectonema spongicola (Bergendal, 1903)
• Emplectonema violaceum (Bürger, 1896)
• Emplectonema viride Stimpson, 1857
• Emplectonema viridis Stimpson, 1857 accepted as Emplectonema viride Stimpson, 1857
• Emplectonematidae Bürger, 1904