| Nominal Species (n = 26) | Present allocation (n = 26) | Ref. |
|---|---|---|
| Paradoxostoma abbreviatum Sars, 1866 | Paradoxostoma abbreviatum | 19 |
| Paradoxostoma angliorum Horne & Whittaker, 1985 | Paradoxostoma angliorum | 19 |
| Cytherois australis Hartmann, 1989 | Cytherois australis | 3477 |
| Pellucistoma bensoni McKenzie & Swain, 1967 | Pellucistoma bensoni | 19 |
| Paradoxostoma bradyi Sars, 1928 | Paradoxostoma bradyi | 19 |
| Xiphichilus complanatus Brady, 1880 | Xiphichilus complanatus | 3477 |
| Paradoxostoma elegans Bonaduce, Masoli, Minichelli & Pugliese, 1980 | Paradoxostoma elegans | 3477 |
| Paradoxostoma ensiforme Brady, 1968 | Paradoxostoma ensiforme | 19 |
| Pseudeucythere filiornata Hartmann, 1989 | Pseudeucythere filiornata | 90145 |
| Paradoxostoma fleetense Horne & Whittaker, 1985 | Paradoxostoma fleetense | 19 |
| Paradoxostoma hibernicum Brady, 1868 | Paradoxostoma hibernicum | 19 |
| Paradoxostoma hypselum Müller, 1908 | Paradoxostoma hypselum | 3477 |
| Cytherois major Hartmann, 1989 | Cytherois major | 3477 |
| Cytherois minor Mueller, 1908 | Cytherois minor | 3477 |
| Paradoxostoma nealei Horne & Whittaker, 1985 | Paradoxostoma nealei | 19 |
| Paradoxostoma normani Brady, 1868 | Paradoxostoma normani | 19 |
| Paradoxostoma novaecaledoniae Brady, 1890 | Paradoxostoma novaecaledoniae | 3477 |
| Chelonocytherois omuatai Tanaka & Hayashi, 2019 | Chelonocytherois omuatai | 3477 |
| Cytherois ovalis Müller, 1908 | Cytherois ovalis | 3477 |
| Paradoxostoma porlockense Horne & Whittaker, 1985 | Paradoxostoma porlockense | 19 |
| Paradoxostoma pulchellum Sars, 1866 | Paradoxostoma pulchellum | 19 |
| Paradoxostoma robinhoodi Horne & Whittaker, 1985 | Paradoxostoma robinhoodi | 19 |
| Paradoxostoma sarniense Brady, 1868 | Paradoxostoma sarniense | 19 |
| Pellucistoma scrippsi Benson, 1959 | Pellucistoma scrippsi | 19 |
| Paradoxostoma striungulum Smith, 1952 | Paradoxostoma striungulum | 19 |
| Paradoxostoma trieri Horne & Whittaker, 1985 | Paradoxostoma trieri | 19 |