Elysiidae Forbes, 1851
Elysia abei Baba, 1955
Elysia amakusana Baba, 1955
Elysia annedupontae Ortea, Caballer, Moro & Espinosa, 2005
Elysia asbecki Wägele, Stemmer, Burghardt & Händeler, 2010
Elysia atroviridis Baba, 1955
Elysia australis (Quoy & Gaimard, 1832)
Elysia babai Pruvot-Fol, 1946
Elysia bangtawaensis Swennen, 1998
Elysia bella (Pease, 1860)
Elysia bengalensis Swennen, 2011
Elysia bennettae Thompson, 1973
Elysia canguzua Er. Marcus, 1955
Elysia catulus (Gould, 1870)
Elysia chilkensis Eliot, 1916
Elysia chitwa Er. Marcus, 1955
Elysia chlorotica Gould, 1870
Elysia clarki Pierce, Curtis, Massey, Bass, Karl & Finney, 2006
Elysia coodgeensis (Angas, 1864)
Elysia cornigera Nuttall, 1989
Elysia crispata Mørch, 1863
Elysia deborahae Ortea, Caballer, Moro & Espinosa, 2005
Elysia degeneri Ostergaard, 1955
Elysia diomedea (Bergh, 1894)
Elysia distinguendus Cossman
Elysia eugeniae Ortea & Espinosa, 2002
Elysia evelinae Er. Marcus, 1957
Elysia expansa (O'Donoghue, 1924)
Elysia fezi Vilella, 1968
Elysia filicauda K.R. Jensen & Wells, 1990
Elysia flava Verrill, 1901
Elysia flavipunctata Ichikawa, 1993
Elysia flavomacula K.R. Jensen, 1990
Elysia funiculifer Cossman
Elysia furvacauda Burn, 1958
Elysia gordanae Thompson & Jaklin, 1988
Elysia gracilis Risbec, 1928
Elysia grandifolia Kelaart, 1857
Elysia grandis Bergh, 1872
Elysia haingsisiana Bergh, 1905
Elysia hamatanii Baba, 1957
Elysia hedgpethi Er. Marcus, 1961
Elysia hendersoni Eliot, 1899
Elysia hetta Perrone, 1990
Elysia hirasei Baba, 1955
Elysia japonica Eliot, 1913
Elysia jibacoaensis Ortea, Moro, Caballer & Espinosa, 2011
Elysia kushimotoensis Baba, 1957
Elysia leucolegnote Jensen, 1990
Elysia lobata Gould, 1852
Elysia macnaei Marcus, 1982
Elysia manriquei Ortea & Moro, 2009
Elysia maoria Powell, 1937
Elysia marcusi (Ev. Marcus, 1972)
Elysia margaritae Fez, 1962
Elysia mercieri (Pruvot-Fol, 1930)
Elysia minima Ichikawa, 1993
Elysia nealae Ostergaard, 1955
Elysia nigrocapitata Baba, 1957
Elysia nigropunctata (Pease, 1871)
Elysia nisbeti Thompson, 1977
Elysia obtusa Baba, 1938
Elysia oerstedii Mørch, 1859
Elysia olivellaeformis Tate
Elysia orientalis Ortea, Moro, Caballer & Espinosa, 2011
Elysia ornata (Swainson, 1840)
Elysia papillosa A. E. Verrill, 1901
Elysia patagonica Munian & Ortea, 1997
Elysia patina Ev. Marcus, 1980
Elysia picta A. E. Verrill, 1901
Elysia pilosa Risbec, 1928
Elysia pratensis Ortea & Espinosa, 1996
Elysia punctata Kelaart, 1857
Elysia purchoni Thompson, 1977
Elysia pusilla (Bergh, 1871)
Elysia rufescens (Pease, 1871)
Elysia sarasuae Ortea, Moro, Caballer & Espinosa, 2011
Elysia scops Ev. Marcus & Er. Marcus, 1967
Elysia serca Er. Marcus, 1955
Elysia setoensis Hamatani, 1968
Elysia siamensis Swennen, 1998
Elysia singaporensis Swennen, 2011
Elysia slimora Er. Marcus & Ev. Marcus, 1966
Elysia stylifera (Jensen, 1997)
Elysia subornata A. E. Verrill, 1901
Elysia sugashimae Baba, 1955
Elysia thompsoni Jensen, 1993
Elysia timida (Risso, 1818)
Elysia tokarensis Baba, 1957
Elysia tomentosa Jensen, 1997
Elysia translucens Pruvot-Fol, 1957
Elysia trilobata Heller & Thompson, 1983
Elysia trisinuata Baba, 1949
Elysia tuca Ev. Marcus & Er. Marcus, 1967
Elysia verrucosa K.R. Jensen, 1985
Elysia viridis (Montagu, 1804)
Elysia vreelandae Marcus & Marcus, 1970
Elysia yaeyamana Baba, 1936
Elysia zuleicae Ortea & Espinosa, 2002