| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Idotea | balthica | 66 |
| 2 | Idotea | resecata | 44 |
| 3 | Idotea | stenops | 21 |
| 4 | Idotea | urotoma | 18 |
| 5 | Idotea | phosphorea | 9 |
| 6 | Idotea | metallica | 7 |
| 7 | Idotea | baltica | 6 |
| 8 | Idotea | aculeata | 5 |
| 9 | Idotea | montereyensis | 3 |
| 10 | Idotea | granulosa | 2 |
| 11 | Idotea | fewkesi | 2 |
| 12 | Idotea | rufescens | 1 |
| 13 | Idotea | ochotensis | 1 |
| 14 | Idotea | schmitti | 1 |