Onchidella J. E. Gray, 1850 (taxonomy source)
Onchidella (Hoffmannola) Strand, 1932 represented as Onchidella J. E. Gray, 1850 (basis of record)
Onchidella (Hoffmannola) hansi (Ev. Marcus & Er. Marcus, 1967) represented as Onchidella hansi (Ev. Marcus & Er. Marcus, 1967) (basis of record)
Onchidella (Onchidella) J. E. Gray, 1850 represented as Onchidella J. E. Gray, 1850 (basis of record)
Onchidella (Onchidella) celtica (Audouin & H. Milne Edwards, 1832) represented as Onchidella celtica (Audouin & H. Milne Edwards, 1832) (basis of record)
Onchidella (Onchidella) kurodai Iw. Taki, 1935 represented as Onchidella kurodai Iw. Taki, 1935 (basis of record)
Onchidella (Onchidella) maculata Plate, 1893 represented as Onchidella maculata Plate, 1893 (basis of record)
Onchidella (Onchidella) marginata (Couthouy, 1852) represented as Onchidella marginata (Couthouy, 1852) (basis of record)
Onchidella (Onchidella) nigricans (Quoy & Gaimard, 1832) represented as Onchidella nigricans (Quoy & Gaimard, 1832) (basis of record)
Onchidella (Peroniella) Starobogatov, 1976 represented as Onchidella J. E. Gray, 1850 (basis of record)
Onchidella (Peroniella) binneyi Stearns, 1893 represented as Onchidella binneyi Stearns, 1893 (basis of record)
Onchidella (Peroniella) carpenteri (W. G. Binney, 1860) represented as Onchidella carpenteri (W. G. Binney, 1860) (basis of record)
Onchidella (Peroniella) floridana (Dall, 1885) represented as Onchidella floridana (Dall, 1885) (basis of record)
Onchidella (Peroniella) hildae Hoffmann, 1928 represented as Onchidella hildae Hoffmann, 1928 (basis of record)
Onchidella (Peroniella) incisa (Quoy & Gaimard, 1832) represented as Onchidella incisa (Quoy & Gaimard, 1832) (basis of record)
Onchidella binneyi Stearns, 1893 (status source)
Onchidella borealis Dall, 1871 accepted as Onchidella carpenteri (W. G. Binney, 1860) (source of synonymy)
Onchidella brattstroemi Ev. Marcus, 1978 accepted as Onchidella floridana (Dall, 1885) (source of synonymy)
Onchidella campbelli Filhol, 1880 accepted as Onchidella marginata (Couthouy, 1852) (source of synonymy)
Onchidella capensis H. Watson, 1925 accepted as Onchidella maculata Plate, 1893 (source of synonymy)
Onchidella capensis var. paucidenta H. Watson, 1925 accepted as Onchidella maculata Plate, 1893 (source of synonymy)
Onchidella carpenteri (W. G. Binney, 1860) (status source)
Onchidella celtica (Audouin & H. Milne Edwards, 1832) (status source)
Onchidella flavescens Wissel, 1904 accepted as Onchidella marginata (Couthouy, 1852) (source of synonymy)
Onchidella floridana (Dall, 1885) (status source)
Onchidella hansi (Ev. Marcus & Er. Marcus, 1967) (status source)
Onchidella hardwickii Gray, 1850 accepted as Onchidium hardwickii (Gray, 1850) (status source)
Onchidella hildae Hoffmann, 1928 (status source)
Onchidella incisa (Quoy & Gaimard, 1832) (status source)
Onchidella irrorata (A. Gould, 1852) accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella juanfernandeziana Wissel, 1898 accepted as Onchidella marginata (Couthouy, 1852) (source of synonymy)
Onchidella kurodai Iw. Taki, 1935 (status source)
Onchidella lesliei (Stearns, 1892) (status source)
Onchidella maculata Plate, 1893 (status source)
Onchidella marginata (Couthouy, 1852) (status source)
Onchidella miusha Ev. Marcus, 1978 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella nana (R. A. Philippi, 1844) accepted as Onchidella celtica (Audouin & H. Milne Edwards, 1832) (source of synonymy)
Onchidella nigricans (Quoy & Gaimard, 1832) (status source)
Onchidella obscura Plate, 1893 accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella oniscioides (Blainville, 1816) (status source)
Onchidella pachyderma Plate, 1893 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella patelloida (Quoy & Gaimard, 1832) accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella philippei Ev. Marcus, 1979 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella pulchella H. Watson, 1925 accepted as Onchidella maculata Plate, 1893 (source of synonymy)
Onchidella remanei Ev. Marcus, 1956 accepted as Onchidella celtica (Audouin & H. Milne Edwards, 1832) (source of synonymy)
Onchidella reticulata (C. Semper, 1880) accepted as Onchidella nigricans (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella souriei Gabe & Prenant, 1955 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Onchidella steindachneri (C. Semper, 1880) (status source)
Onchidella wah Ev. Marcus, 1978 accepted as Onchidella floridana (Dall, 1885) (source of synonymy)
Onchidellinae Labbé, 1934 (status source)
Onchidiidae Rafinesque, 1815 (basis of record)
Onchidiinae Rafinesque, 1815 (status source)
Onchidium (Onchidella) transatlanticum Heilprin, 1889 accepted as Onchidella floridana (Dall, 1885) (source of synonymy)
Onchidium chilense Hupé, 1854 accepted as Onchidella marginata (Couthouy, 1852) (source of synonymy)
Onchidium lanuginosum Hupé, 1854 accepted as Onchidella marginata (Couthouy, 1852) (source of synonymy)
Onchidium schrammi Bland & W. G. Binney, 1874 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Onchidium tuberculatum Taslé, 1870 accepted as Onchidella celtica (Audouin & H. Milne Edwards, 1832) (source of synonymy)
Onchis armadilla Mörch, 1863 accepted as Onchidium incisum Quoy & Gaimard, 1832 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Oncidiella (Oncidiella) orientalis Iw. Taki, 1935 accepted as Onchidella kurodai Iw. Taki, 1935 (source of synonymy)
Oncidiella accrensis Plate, 1893 accepted as Onchidium incisum Quoy & Gaimard, 1832 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Oncidiella coquimbensis Plate, 1894 accepted as Onchidella marginata (Couthouy, 1852) (source of synonymy)
Peronia indolens Couthouy, 1852 accepted as Onchidella incisa (Quoy & Gaimard, 1832) (source of synonymy)
Peronia parthenopeia Delle Chiaje, 1841 accepted as Onchidella celtica (Audouin & H. Milne Edwards, 1832) (source of synonymy)

Galapagos Islands for Onchidium steindachneri C. Semper, 1880