• Aquaplana oceanica Hyman, 1953 accepted as Paraplanocera oceanica (Hyman, 1953)
• Aquaplana pacifica Hyman, 1959
• Carenoceraeus oceanica Schmarda, 1859 accepted as Planocera pellucida (Mertens, 1833)
• Cirroposthia steueri Steinbock, 1937 accepted as Neoplanocera steueri (Steinbock, 1937)
• Disparoplana dubia Laidlaw, 1903
• Heteroplanocera katoi Oya & Kajihara, 2021
• Neoplanocera elongata Yeri & Kaburaki, 1918
• Neoplanocera steueri (Steinbock, 1937)
• Paraplanocera angeli Soutullo, Cuadrado & Norena, 2021
• Paraplanocera aurora Laidlaw, 1903
• Paraplanocera discus (Willey, 1897)
• Paraplanocera fritillata Hyman, 1959
• Paraplanocera kalpeniensis Dixit & Sreraj, 2024
• Paraplanocera laidlawi Jacubowa, 1906 accepted as Paraplanocera discus (Willey, 1897)
• Paraplanocera langi (Laidlaw, 1902)
• Paraplanocera langii (Laidlaw, 1902) accepted as Paraplanocera langi (Laidlaw, 1902)
• Paraplanocera marginata Meyer, 1922
• Paraplanocera misakiensis Yeri & Kaburaki, 1918
• Paraplanocera oceanica (Hyman, 1953)
• Paraplanocera oligoglena (Schmarda, 1859)
• Paraplanocera oligoglenoides Ramos-Sanchez, Bahia & Rolando Bastida-Zavala, 2019
• Paraplanocera rotumanensis Laidlaw, 1903
• Paraplanocera rubrifasciata Kato, 1937
• Planocera amphibola (Schmarda, 1859) accepted as Paraplanocera oligoglena (Schmarda, 1859)
• Planocera amphibolus (Schmarda, 1859) accepted as Paraplanocera oligoglena (Schmarda, 1859)
• Planocera armata Laidlaw, 1902
• Planocera aurea (Kelaart, 1858)
• Planocera bituberculata (Leuckart, 1828) accepted as Stylochus suesensis Ehrenberg, 1831
• Planocera burchami Heath & McGregor, 1912 accepted as Koinostylochus burchami (Heath & McGregor, 1912)
• Planocera californica Heath & McGregor, 1912 accepted as Hylocelis californica (Heath & McGregor, 1912)
• Planocera ceratommata (Palombi, 1936)
• Planocera corniculata (Dalyell, 1853) accepted as Stylochoplana maculata (Quatrefage, 1845)
• Planocera corniculatus (Dalyell, 1853) accepted as Stylochoplana maculata (Quatrefage, 1845)
• Planocera crosslandi Laidlaw, 1903
• Planocera dictyota (Schmarda, 1859)
• Planocera dictyotus (Schmarda, 1859) accepted as Planocera dictyota (Schmarda, 1859)
• Planocera discoidea Willey, 1897 accepted as Planocera discoides Willey, 1897
• Planocera discoides Willey, 1897
• Planocera discus Willey, 1897 accepted as Paraplanocera discus (Willey, 1897)
• Planocera edmondsi Prudhoe, 1982
• Planocera edmonsi Faubel, 1983 accepted as Planocera edmondsi Prudhoe, 1982
• Planocera elegans (Kelaart, 1858) accepted as Stylochoplana elegans (Kelaart, 1858)
• Planocera elliptica Girard, 1851 accepted as Stylochus ellipticus (Girard, 1850)
• Planocera folia (Grube, 1840)
• Planocera folium (Grube, 1840) accepted as Planocera folia (Grube, 1840)
• Planocera gaimardi Blainville, 1828 accepted as Planocera pellucida (Mertens, 1833)
• Planocera gilchristi Jacubowa, 1906
• Planocera graffi Lang, 1879
• Planocera grubei Graff, 1892 accepted as Chatziplana grubei (Graff, 1892)
• Planocera hawaiensis Heath, 1907 accepted as Planocera hawaiiensis Heath, 1907
• Planocera hawaiiensis Heath, 1907
• Planocera heda Kato, 1944
• Planocera heteroglena (Schmarda, 1859) accepted as Imogine megalops (Schmarda, 1859) accepted as Stylochus megalops (Schmarda, 1859)
• Planocera inquilina Wheeler, 1894 accepted as Hoploplana inquilina (Wheeler, 1894)
• Planocera insignis Lang, 1884 accepted as Hoploplana insignis (Lang, 1884)
• Planocera langi Laidlaw, 1902 accepted as Paraplanocera langi (Laidlaw, 1902)
• Planocera langii Laidlaw, 1902 accepted as Paraplanocera langi (Laidlaw, 1902)
• Planocera marginata (Stimpson, 1857) accepted as Callioplana marginata Stimpson, 1857
• Planocera muelleri Audouin, 1827 accepted as Stylochus suesensis Ehrenberg, 1831
• Planocera mulleri (Audouin, 1827) accepted as Stylochus suesensis Ehrenberg, 1831
• Planocera multitentaculata Kato, 1944
• Planocera nebulosa Girard, 1853 accepted as Imogine nebulosus (Girard, 1853) accepted as Stylochus nebulosus (Girard, 1853)
• Planocera oligoglena (Schmarda, 1859) accepted as Paraplanocera oligoglena (Schmarda, 1859)
• Planocera oxyceraea (Schmarda, 1859) accepted as Callioplana marginata Stimpson, 1857
• Planocera oxycerea (Schmarda, 1859) accepted as Callioplana marginata Stimpson, 1857
• Planocera pacifica Hyman, 1954
• Planocera papillosa Lang, 1884 accepted as Hoploplana papillosa Lang, 1884
• Planocera pelagica (Moseley, 1877) accepted as Planocera pellucida (Mertens, 1833)
• Planocera pelagica (Moseley, 1877) accepted as Planocera pellucida (Mertens, 1833)
• Planocera pellucida (Mertens, 1833)
• Planocera profunda Kato, 1937
• Planocera purpurea Yeri & Kaburaki, 1918
• Planocera rainieri Belloc, 1961 (unaccepted > nomen nudum)
• Planocera reticulata (Gray, 1860) accepted as Planocera reticulata (Stimpson, 1855)
• Planocera reticulata (Stimpson, 1855)
• Planocera sandiegensis Boone, 1929 accepted as Interplana sandiegensis (Boone, 1929)
• Planocera sargassicola (Mertens, 1833) accepted as Gnesioceros sargassicola (Mertens, 1833)
• Planocera simrothi Graff, 1892 accepted as Planocera pellucida (Mertens, 1833)
• Planocera suesensis (Ehrenberg, 1831) accepted as Stylochus suesensis Ehrenberg, 1831
• Planocera thesea (Kelaart, 1858)
• Planocera tridentata Hyman, 1953
• Planocera uncinata Palombi, 1939
• Planocera villosa Lang, 1884 accepted as Hoploplana villosa (Lang, 1884)
• Planocerodes ceratommata Palombi, 1936 accepted as Planocera ceratommata (Palombi, 1936)
• Planoceros gaimardi (Blainville, 1826) accepted as Planocera pellucida (Mertens, 1833)
• Pseudoplanocera izmirensis Bulnes, 2010
• Spinicirrus inequalis Hyman, 1953