| Nominal Species (n = 23) | Present allocation (n = 23) | Ref. |
|---|---|---|
| Ergasilus auritus Markevich, 1940 | Ergasilus auritus | 19 |
| Ergasilus chautauquaensis Fellows, 1887 | Ergasilus chautauquaensis | 19 |
| Ergasilus clupeidarum Johnson & Rogers, 1972 | Ergasilus clupeidarum | 19 |
| Ergasilus cyprinaceus Rogers, 1969 | Ergasilus cyprinaceus | 19 |
| Ergasilus elongatus Wilson, 1916 | Ergasilus elongatus | 19 |
| Ergasilus funduli Krøyer, 1863 | Ergasilus funduli | 19 |
| Ergasilus gibbus von Nordmann, 1832 | Ergasilus gibbus | 19 |
| Paraergasilus inflatus Ho, Khamees & Mhaisen, 1996 | Paraergasilus inflatus | 3477 |
| Ergasilus iraquensis Amado, 2001 | Ergasilus iraquensis | 3477 |
| Mugilicola kabatai Piasecki, Khamees & Mhaisen, 1991 | Mugilicola kabatai | 3477 |
| Ergasilus labracis Krøyer, 1863 | Ergasilus labracis | 19 |
| Ergasilus lizae Krøyer, 1863 | Ergasilus lizae | 19 |
| Paraergasilus longidigitus Yin, 1954 | Paraergasilus longidigitus | 19 |
| Ergasilus manicatus Wilson, 1911 | Ergasilus manicatus | 19 |
| Ergasilus mugilis Vogt, 1877 | Ergasilus mugilis | 19 |
| Ergasilus ogawai Kabata, 1992 | Ergasilus ogawai | 3477 |
| Ergasilus pararostralis Amado, 2001 | Ergasilus pararostralis | 3477 |
| Ergasilus rostralis Ho, Jayarajan & Radhakrishnan, 1992 | Ergasilus rostralis | 3477 |
| Ergasilus sieboldi von Nordmann, 1832 | Ergasilus sieboldi | 19 |
| Ergasilus synanceiensis Amado, 2001 | Ergasilus synanceiensis | 3477 |
| Ergasilus tenax Roberts, 1965 | Ergasilus tenax | 19 |
| Ergasilus turgidus Fraser, 1920 | Ergasilus turgidus | 19 |
| Dermoergasilus varicoleus Ho, Jayarajan & Radhakrishan, 1992 | Dermoergasilus varicoleus | 3477 |