| Species | Name Used |
|---|---|
| Ibacus alticrenatus Bate, 1888 | Ibacus altricrenatus (p. ) |
| Ibacus brevipes Bate, 1888 | Ibacus brevipes (p. ) |
| Ibacus brucei Holthuis, 1977 | Ibacus brucei (p. ) |
| Ibacus chacei Brown & Holthuis, 1998 | Scyllarus chacei (p. ) |
| Ibacus pubescens Holthuis, 1960 | Ibacus ciliatus pubescens (p. 135 ) |