n = 6
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Idus idus | (Linnaeus, 1758) | Leuciscus idus | Leuciscidae | Ide |
| Idus melanotus | Heckel, 1843 | Leuciscus idus | Leuciscidae | Ide |
| Idus miniatus | Bonaparte, 1845 | Leuciscus idus | Leuciscidae | Ide |
| Idus oxianus | Kessler, 1877 | Leuciscus idus | Leuciscidae | Ide |
| Idus stagnalis | Dubalen, 1913 | Leuciscus leuciscus | Leuciscidae | Common dace |
| Idus waleckii | Dybowski, 1869 | Leuciscus waleckii | Leuciscidae | Amur ide |