- Elysia abei Baba, 1955
- Elysia amakusana Baba, 1955
- Elysia annedupontae Ortea, Caballer, Moro & Espinosa, 2005
- Elysia asbecki Wagele, Stemmer, Burghardt & Handeler, 2010[3]
- Elysia atroviridis Baba, 1955
- Elysia australis (Quoy & Gaimard, 1832)
- Elysia babai Pruvot-Fol, 1946
- Elysia bangtawaensis Swennen, 1997
- 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 - lettuce slug
- Elysia deborahae Ortea, Caballer, Moro & Espinosa, 2005
- Elysia degeneri Ostergaard, 1955
- Elysia diomedea (Bergh, 1894)
- Elysia ellenae Ortea, Espinosa & Caballer, 2013
- Elysia entredosaguas Ortea & Bacallado, 2014
- Elysia eugeniae Ortea & Esponosa, 2002
- Elysia evelinae Marcus, 1957
- Elysia expansa (O'Donoghue, 1924)
- Elysia filicauda Jensen & Wells, 1990
- Elysia flava Verrill, 1901
- Elysia flavipunctata Ichikawa, 1993
- Elysia flavomacula Jensen, 1990
- Elysia furvacauda Burn, 1958
- Elysia gordanae Thompson & Jaklin, 1988
- 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 leeanneae Caballer, Ortea & Espinosa, 2013
- Elysia leucolegnote Jensen, 1990
- Elysia lobata Gould, 1852
- Elysia macnaei Marcus, 1982
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- Elysia manriquei Ortea & Moro, 2009
- Elysia maoria Powell, 1937
- Elysia marcusi (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 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 pilosa Risbec, 1928
- Elysia pratensis Ortea & Espinosa, 1996
- Elysia punctata Kelaart, 1857
- Elysia purchoni Thompson, 1977
- Elysia pusilla Bergh, 1872
- Elysia rufescens (Pease, 1871)
- Elysia sarasuae Ortea, Moro, Caballer & Espinosa, 2011
- Elysia scops Ev. Marcus & Er. Marcus, 1967
- Elysia serca Er. Marcus, 1955
- Elysia siamensis Swennen, 1997
- 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 and Er. Marcus, 1967
- Elysia verrucosa Jensen, 1985
- Elysia viridis (Montagu, 1804)
- Elysia vreelandae Marcus & Marcus, 1970
- Elysia yaeyamana Baba, 1936
- Elysia zuleicae Ortea & Espinosa, 2002
- Elysia fezi Vilella, 1968 (taxon inquirendum)
- Elysia pruvotae Risbec, 1953 (taxon inquirendum)
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