| Species | Name Used |
|---|---|
| Symplectoscyphus ralphae Vervoort, 1993 | Symplectoscyphus ralphae (p. ) |
| Symplectoscyphus tuba Totton, 1930 | Symplectoscyphus tuba (p. ) |
| Synthecium samauense Billard, 1925 | Synthecium samauense (p. ) |
| Thyroscyphus fruticosus (Esper, 1793) | Thyroscyphus fruticosus (p. ) |
| Thyroscyphus scorpioides Vervoort, 1993 | Thyroscyphus scorpioides (p. ) |
| Velella velella (Linnaeus, 1758) | Velella velella (p. ) |