| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Idas ghisottii Warén & Carrozza, 1990 |
Mediterranean Sea | ||
| Idas japonica (Habe, 1976) |
Western Pacific | ||
| Idas lamellosus Verrill, 1882 |
Atlantic Ocean | 0.8 | |
| Idas macdonaldi Gustafson, Turner, Lutz & Vrijenhoek, 1998 |
Western Atlantic | 1.34 | |
| Idas modiolaeformis (Sturany, 1896) |
Mediterranean Sea | ||
| Idas simpsoni (Marshall, 1900) |
Mediterranean Sea | ||
| Idas washingtoniana (Bernard, 1978) |
Southwest Pacific |