Elophilus Labbé, 1935 accepted as Onchidium Buchannan, 1800 (basis of record)
Eudrastus Gistel, 1848 accepted as Peronia J. Fleming, 1822 (basis of record)
Hoffmannola Strand, 1932 accepted as Onchidella (Hoffmannola) Strand, 1932 represented as Onchidella J. E. Gray, 1850 (basis of record)
Hoffmannola hansi Ev. Marcus & Er. Marcus, 1967 accepted as Onchidella hansi (Ev. Marcus & Er. Marcus, 1967) (basis of record)
Lessonina Starobogatov, 1976 accepted as Peronia J. Fleming, 1822 (basis of record)
Occidentella Hoffmann, 1929 accepted as Onchidella J. E. Gray, 1850 (basis of record)
Onchidella accrensis (Plate, 1893) accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidella campbelli Filhol, 1880 accepted as Onchidella marginata (Couthouy, 1852) (basis of record)
Onchidella capensis H. Watson, 1925 accepted as Onchidella maculata Plate, 1893 (basis of record)
Onchidella celtica (Audouin & Milne-Edwards, 1832) (basis of record)
Onchidella condoriana Rochebrune, 1882 accepted as Platevindex condorianus (Rochebrune, 1882) accepted as Platevindex coriaceus coriaceus (C. Semper, 1882) (basis of record)
Onchidella flavescens Wissel, 1904 accepted as Onchidella marginata (Couthouy, 1852) (basis of record)
Onchidella griseofusca Tapparone Canefri, 1874 accepted as Onchidium griseofuscum (Tapparone Canefri, 1874) (basis of record)
Onchidella griseo-fusca Tapparone Canefri, 1874 accepted as Onchidella griseofusca Tapparone Canefri, 1874 accepted as Onchidium griseofuscum (Tapparone Canefri, 1874) (basis of record)
Onchidella hildae Hoffmann, 1928 (basis of record)
Onchidella juanfernandeziana Wissel, 1898 accepted as Onchidella marginata (Couthouy, 1852) (basis of record)
Onchidella kurodai Iw. Taki, 1935 (basis of record)
Onchidella maculata Plate, 1893 (basis of record)
Onchidella miusha Ev. Marcus, 1978 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidella monodi Gabe, Prenant & Sourie, 1951 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidella nigra Gray, 1850 accepted as Scaphis atra (Lesson, 1831) accepted as Wallaconchis ater (Lesson, 1831) (basis of record)
Onchidella obscura Plate, 1893 accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (basis of record)
Onchidella oniscioides (Blainville, 1816) (new combination reference)
Onchidella orientalis Iw. Taki, 1935 accepted as Onchidella kurodai Iw. Taki, 1935 (basis of record)
Onchidella pachyderma Plate, 1893 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidella philippei Ev. Marcus, 1979 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidella pulchella H. Watson, 1925 accepted as Onchidella maculata Plate, 1893 (basis of record)
Onchidella reevesii Gray, 1850 accepted as Onchidium reevesii (Gray, 1850) (basis of record)
Onchidella remanei Ev. Marcus, 1956 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832) (basis of record)
Onchidella souriei Gabe & Prenant, 1955 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidella wah Ev. Marcus, 1978 accepted as Onchidella floridana (Dall, 1885) (basis of record)
Onchidium ambiguum C. Semper, 1880 accepted as Marmaronchis vaigiensis (Quoy & Gaimard, 1825) (basis of record)
Onchidium applanatum Simroth, 1920 accepted as Platevindex applanatus (Simroth, 1920) (basis of record)
Onchidium ater Lesson, 1831 accepted as Wallaconchis ater (Lesson, 1831) (basis of record)
Onchidium burnupi Collinge, 1902 accepted as Platevindex burnupi (Collinge, 1902) (basis of record)
Onchidium cinereum Quoy & Gaimard, 1832 (basis of record)
Onchidium coriaceum C. Semper, 1880 accepted as Platevindex coriaceus (C. Semper, 1880) (basis of record)
Onchidium cubense L. Pfeiffer, 1840 accepted as Veronicella cubensis (L. Pfeiffer, 1840) (basis of record)
Onchidium dämelii C. Semper, 1880 accepted as Onchidium daemelii C. Semper, 1880 accepted as Paromoionchis daemelii (C. Semper, 1880) (basis of record)
Onchidium durum Labbé, 1934 accepted as Peronia verruculata (Cuvier, 1830) (basis of record)
Onchidium ferrugineum Lesson, 1831 accepted as Peronia verruculata (Cuvier, 1830) (basis of record)
Onchidium floridanum Dall, 1885 accepted as Onchidella floridana (Dall, 1885) (basis of record)
Onchidium fungiforme (Stantschinsky, 1907) accepted as Wallaconchis fungiformis (Stantschinsky, 1907) (basis of record)
Onchidium glabrum C. Semper, 1880 accepted as Semperoncis glaber (C. Semper, 1880) (basis of record)
Onchidium granulosum Lesson, 1831 (basis of record)
Onchidium griseum Plate, 1893 (basis of record)
Onchidium harmandianum Rochebrune, 1882 (basis of record)
Onchidium incisum Quoy & Gaimard, 1832 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidium laevigatum Cuvier, 1816 accepted as Vaginulus laevigatus A. Férussac, 1822 (basis of record)
Onchidium lanuginosum Hupé, 1854 accepted as Onchidella marginata (Couthouy, 1852) (basis of record)
Onchidium leopoldi Labbé, 1934 accepted as Marmaronchis vaigiensis (Quoy & Gaimard, 1825) (basis of record)
Onchidium lesliei Stearns, 1892 accepted as Onchidella lesliei (Stearns, 1892) (basis of record)
Onchidium lixii Labbé, 1934 (basis of record)
Onchidium luteum C. Semper, 1882 accepted as Platevindex luteus (C. Semper, 1882) (basis of record)
Onchidium marmoratum Lesson, 1831 accepted as Marmaronchis marmoratus (Lesson, 1831) (basis of record)
Onchidium melanopneumon Bergh, 1884 accepted as Peronia peronii (Cuvier, 1804) (basis of record)
Onchidium meriakrii Stantschinsky, 1907 accepted as Alionchis meriakrii (Stantschinsky, 1907) (basis of record)
Onchidium multinotatum Plate, 1893 (basis of record)
Onchidium multiradiatum C. Semper, 1882 (basis of record)
Onchidium nanum R. A. Philippi, 1844 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832) (basis of record)
Onchidium nebulosum C. Semper, 1880 (basis of record)
Onchidium nigricans Quoy & Gaimard, 1832 accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (basis of record)
Onchidium occidentale Guilding, 1824 accepted as Diplosolenodes occidentalis (Guilding, 1824) (basis of record)
Onchidium ovale C. Semper, 1880 accepted as Wallaconchis ovalis (C. Semper, 1880) (basis of record)
Onchidium pallidum Stoliczka, 1869 (basis of record)
Onchidium patelloide Quoy & Gaimard, 1832 accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (basis of record)
Onchidium peronii Cuvier, 1804 accepted as Peronia peronii (Cuvier, 1804) (basis of record)
Onchidium planatum Quoy & Gaimard, 1825 (basis of record)
Onchidium platei Hoffmann, 1928 accepted as Peronia platei (Hoffmann, 1928) (basis of record)
Onchidium ponsonbyi Collinge, 1901 accepted as Semperoncis ponsonbyi (Collinge, 1901) (basis of record)
Onchidium punctatum Quoy & Gaimard, 1832 accepted as Peronia peronii (Cuvier, 1804) (basis of record)
Onchidium reticulatum C. Semper, 1880 accepted as Onchidella reticulata (C. Semper, 1880) accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (basis of record)
Onchidium schrammi Bland & W. G. Binney, 1874 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidium secatum Quoy & Gaimard, 1824 (basis of record)
Onchidium sloanei Cuvier, 1817 accepted as Veronicella sloanei (Cuvier, 1817) accepted as Veronicella sloanii (Cuvier, 1816) accepted as Leidyula sloanii (Cuvier, 1816) (basis of record)
Onchidium steenstrupii C. Semper, 1882 accepted as Marmaronchis vaigiensis (Quoy & Gaimard, 1825) (basis of record)
Onchidium steindachneri C. Semper, 1880 accepted as Onchidella steindachneri (C. Semper, 1880) (basis of record)
Onchidium tigrinum Stoliczka, 1869 accepted as Platevindex tigrinus (Stoliczka, 1869) (basis of record)
Onchidium tonganum Quoy & Gaimard, 1832 accepted as Peronia peronii (Cuvier, 1804) (basis of record)
Onchidium transatlanticum Heilprin, 1889 accepted as Onchidella floridana (Dall, 1885) (basis of record)
Onchidium trans-atlanticum Heilprin, 1889 accepted as Onchidella floridana (Dall, 1885) (basis of record)
Onchidium trapezoideum C. Semper, 1882 (basis of record)
Onchidium tricolor Simroth, 1918 (basis of record)
Onchidium tuberculatum Taslé, 1870 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832) (basis of record)
Onchidium vaigiense Quoy & Gaimard, 1825 accepted as Marmaronchis vaigiensis (Quoy & Gaimard, 1825) (basis of record)
Onchidium verruculatum Cuvier, 1830 accepted as Peronia verruculata (Cuvier, 1830) (basis of record)
Onchis A. Férussac, 1822 accepted as Peronia J. Fleming, 1822 (basis of record)
Onchis montana (Plate, 1893) accepted as Semperoncis montanus (Plate, 1893) (basis of record)
Oncidiella P. Fischer & Crosse, 1878 accepted as Onchidella J. E. Gray, 1850 (source of synonymy)
Oncidiella (Oncidiella) orientalis Iw. Taki, 1935 accepted as Onchidella kurodai Iw. Taki, 1935 (basis of record)
Oncidiella coquimbensis Plate, 1894 accepted as Onchidella marginata (Couthouy, 1852) (basis of record)
Oncidiella flavescens Wissel, 1904 accepted as Onchidella flavescens Wissel, 1904 accepted as Onchidella marginata (Couthouy, 1852) (basis of record)
Oncidiella hildae Hoffmann, 1928 accepted as Onchidella hildae Hoffmann, 1928 (basis of record)
Oncidiella juanfernandeziana Wissel, 1898 accepted as Onchidella marginata (Couthouy, 1852) (basis of record)
Oncidiella maculata Plate, 1893 accepted as Onchidella maculata Plate, 1893 (basis of record)
Oncidiella monodi Gabe, Prenant & Sourie, 1951 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Oncidiella obscura Plate, 1893 accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (basis of record)
Oncidiella pachyderma Plate, 1893 accepted as Onchidella pachyderma Plate, 1893 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Oncidiella souriei Gabe & Prenant, 1955 accepted as Onchidella souriei Gabe & Prenant, 1955 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Oncidiella tabularis Tapparone Canefri, 1883 (basis of record)