| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Elysia annedupontae Ortea, Espinosa & Caballer, 2005 |
Western Atlantic | ||
| Elysia arena Carlson & Hoff, 1978 |
Western Central Pacific | ||
| Elysia atroviridis Baba, 1955 |
Northwest Pacific | ||
| Elysia australis (Quoy & Gaimard, 1832) |
Indo-West Pacific | 2.5 | |
| Elysia canguzua Marcus, 1955 |
Western Atlantic | 4 | |
| Elysia catulus (Gould, 1870) |
Eelgrass slug | Western Atlantic | 0.9 |
| Elysia chilkensis Eliot, 1916 |
Indo-West Pacific | ||
| Elysia chitwa Marcus, 1955 |
Western Atlantic | 0.2 | |
| Elysia chlorotica Gould, 1870 |
Emerald Elysia | Western Atlantic | 4.5 |
| Elysia clarki Pierce et al., 2006 |
Western Atlantic | 5.5 | |
| Elysia coodgeensis Angas, 1864 |
Coodgee Elysia | Indo-West Pacific | |
| Elysia cornigera Nuttall, 1989 |
Horned sapsucker | Eastern Central Pacific, Western Atlantic and Mediterranean | 1.5 |
| Elysia crispata Morch, 1863 |
Lettuce seaslug | Western Atlantic | 15 |
| Elysia deborahae Ortea, Espinosa & Moro, 2005 |
Western Atlantic | ||
| Elysia degeneri Ostergaard, 1955 |
Western Central Pacific | ||
| Elysia diomedea (Bergh, 1894) |
Diomede's sapsucker | Eastern Central Pacific | 10 |
| Elysia evelinae Marcus, 1957 |
Western Atlantic | 0.8 | |
| Elysia fezi Vilella, 1968 |
Mediterranean Sea | ||
| Elysia flava Verrill, 1901 |
Western Central Atlantic and the Mediterranean | 2.5 | |
| Elysia flavomacula Jensen, 1990 |
Northwest Pacific | ||
| Elysia furvacauda Burn, 1958 |
Eastern Indian Ocean | 1.9 | |
| Elysia gordanae Thompson & Jaklin, 1988 |
Mediterranean Sea | ||
| Elysia grandifolia Kelaart, 1857 |
Mediterranean Sea | ||
| Elysia halimedae Macnae, 1954 |
Indo-Pacific and Southeast Atlantic | ||
| Elysia hedgpethi Marcus, 1961 |
Hedgpeth's sapsucker | Eastern Pacific | 2.5 |
| Elysia hetta Perrone, 1990 |
Mediterranean Sea | ||
| Elysia hirasei Baba, 1955 |
Indo-West Pacific | ||
| Elysia japonica Eliot, 1913 |
Northwest Pacific | ||
| Elysia leucolegnote Jensen, 1990 |
Indo-West Pacific | ||
| Elysia maoria Powell, 1937 |
Maori Elysia | Indo-West Pacific | 2.5 |
| Elysia margaritae Fez, 1962 |
Mediterranean Sea | ||
| Elysia marginata (Pease, 1871) |
Indo-Pacific | ||
| Elysia mercieri (Pruvot-Fol, 1930) |
Western Central Pacific | ||
| Elysia moebii (Bergh, 1888) |
Western Indian Ocean | ||
| Elysia nigrocapitata Baba, 1957 |
Northwest Pacific | ||
| Elysia nigropunctata (Pease, 1871) |
Central Pacific | ||
| Elysia nisbeti Thompson, 1977 |
Western Atlantic | 1 | |
| Elysia obtusa Baba, 1938 |
Indo-Pacific | ||
| Elysia ornata (Swainson, 1840) |
Ornate Elysia | Indo-Pacific and Western Atlantic | 4 |
| Elysia papillosa Verrill, 1901 |
Papillose Elysia | Western Atlantic | 3.5 |
| Elysia patagonica Muniain & Ortea, 1997 |
Green sea slug | Southeast Pacific and Southwest Atlantic | 7 |
| Elysia patina Marcus, 1980 |
Western Atlantic | 2 | |
| Elysia purchoni Thompson, 1977 |
Western Atlantic | 0.5 | |
| Elysia pusilla Bergh, 1872 |
Flat Elysia | Indo-West Pacific | 3 |
| Elysia ratna Marcus, 1965 |
Western Central Pacific | ||
| Elysia rubeni Martín-Hervás, Carmona, Jensen, Licchelli, Vitale & Cervera, 2020 |
Northeast Atlantic and the Mediterranean | ||
| Elysia rufescens (Pease, 1871) |
Indo-Pacific | ||
| Elysia scops Marcus & Marcus, 1967 |
Western Atlantic | 2 | |
| Elysia serca Marcus, 1955 |
Seagrass Elysia | Western Atlantic | 0.8 |
| Elysia subornata Verrill, 1901 |
Western Atlantic | 7 | |
| Elysia timida (Risso, 1818) |
Mediterranean Sea | ||
| Elysia tomentosa Jensen, 1997 |
Sap sucking slug | Indo-West Pacific and the Mediterranean Sea | 3 |
| Elysia translucens Pruvot-Fol, 1957 |
Mediterranean Sea | ||
| Elysia trisinuata Baba, 1949 |
Northwest Pacific | ||
| Elysia tuca Marcus & Marcus, 1967 |
Sacoglossan sea slug | Western Atlantic | 4 |
| Elysia verrucosa Jensen, 1985 |
Northwest Pacific | ||
| Elysia virgata (Bergh, 1888) |
Western Indian Ocean | ||
| Elysia viridis (Montagu, 1804) |
Green Elysia | Atlantic, Western Indian Ocean and the Mediterranean | 4.5 |
| Elysia zuleicae Ortea & Espinosa, 2002 |
Western Atlantic | 1.7 |