| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Idotea aleutica Gurjanova, 1933 |
Bering Sea | ||
| Idotea balthica (Pallas, 1772) |
Baltic isopod | Atlantic Ocean and the Mediterranean | |
| Idotea brevicorna Milne-Edwards, 1840 |
Eastern Indian Ocean | ||
| Idotea chelipes (Pallas, 1772) |
Northeast Atlantic | ||
| Idotea emarginata (Fabricius, 1793) |
Northeast Atlantic | ||
| Idotea granulosa Rathke, 1843 |
Northeast Atlantic | ||
| Idotea gurjanovae Kussakin, 1974 |
N | ||
| Idotea hectica (Pallas, 1772) |
Mediterranean Sea | ||
| Idotea indica Milne-Edwards, 1840 |
Malabar, India | ||
| Idotea linearis (Pennant, 1777) |
Northeast Atlantic | ||
| Idotea margaritacea Dana, 1853 |
Southwest Pacific | ||
| Idotea metallica Bosc, 1802 |
Metallic isopod | Circumglobal | |
| Idotea montereyensis Maloney, 1933 |
Monterey isopod | Eastern Pacific | |
| Idotea neglecta Sars, 1897 |
Northeast Atlantic | ||
| Idotea obscura Rafi, 1972 |
British Columbia, Canada | ||
| Idotea ochotensis Brandt, 1851 |
Sea of Okhotsk | ||
| Idotea orientalis Gurjanova, 1933 |
Sea of Japan | ||
| Idotea pelagica Leach, 1815 |
Northeast Atlantic and the Mediterranean | ||
| Idotea phosphorea Harger, 1873 |
N | ||
| Idotea resecata Stimpson, 1857 |
Eelgrass isopod | Eastern Pacific | |
| Idotea rufescens Fee, 1927 |
British Columbia, Canada | ||
| Idotea spasskii Gurjanova, 1950 |
N | ||
| Idotea stenops Benedict, 1898 |
Feather boa isopod | Eastern Pacific | |
| Idotea urotoma Stimpson, 1864 |
Puget Sound | ||
| Idotea ziczac Barnard, 1951 |
South Africa |