| Gnesioceros sargassicola (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Gnesioceros pellucidus (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Pelagoplana sargassicola (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Leptoplana lichenoides (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Stylochoplana sargassicola (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Planocera pellucida (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Planocera sargassicola (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Discocelis lichenoides (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Stylochus pellucidus (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Stylochus sargassicola (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Planaria lichenoides Mertens, 1833 | | w | primary taxonomic authority (describer) | |
| Planaria pellucida(2) Mertens, 1833 | | w | primary taxonomic authority (describer) | |
| Planaria sargassicola Mertens, 1833 | | w | primary taxonomic authority (describer) | |
| Centrostomum lichenoides (Mertens, 1832) | | w | primary taxonomic authority (describer) | |
| Planaria lichenoides Mertens, 1833 | | w | primary taxonomic authority (describer) | 3-17 |
| Discocelis lichenoides (Mertens, 1832) | | - | primary taxonomic authority (describer) | |
| Planocera pellucida (Mertens, 1832) | | - | primary taxonomic authority (describer) | 8 |
| Discocelis lichenoides (Mertens, 1833) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Gnesioceros pellucidus (Mertens, 1833) | | w | primary taxonomic authority (describer) | |
| Gnesioceros sargassicola (Mertens, 1833) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Pelagoplana sargassicola (Mertens, 1833) | | w | primary taxonomic authority (describer) | |
| Leptoplana lichenoides (Mertens, 1833) | | w | primary taxonomic authority (describer) | |
| Stylochoplana sargassicola (Mertens, 1833) | | w | primary taxonomic authority (describer) | |
| Planocera pellucida (Mertens, 1833) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Planocera sargassicola (Mertens, 1833) | | w | primary taxonomic authority (describer) | |
| Stylochus pellucidus (Mertens, 1833) | | w | primary taxonomic authority (describer) | |
| Stylochus sargassicola (Mertens, 1833) | | w | primary taxonomic authority (describer) | |
