| Leptoplana tremellaris (Müller, 1773) | Aug-Sep 1892 | | | Among sand at the base of Corallina officinalis, curious colour-varieties of Leptoplana tremellaris.... |
| Convoluta paradoxa Ørsted, 1843 | Aug-Sep 1892 | | | |
| Plagiostomum girardi (Schmidt, 1857) | Aug-Sep 1892 | | | at low spring tides. |
| Aphanostoma diversicolor Ørsted, 1845 | Aug-Sep 1892 | | | In various localities between tide-marks. Not uncommon in the diatom-deposit on the sides of tanks in the aquarium. |
| Fovia affinis (Ørsted, 1843) | Aug-Sep 1892 | | | an example of what appears to be Fovia affinis (a marine Triclad). In a sandy creek, Wembury Bay. |
| Cylindrostoma quadrioculatum (Leuckart, 1847) | Aug-Sep 1892 | | | In tufts of matted Florideae which hang from the under surface of rocks, Cylindrostoma quadrioculatum occurs in hundreds. |
| Cylindrostoma inerme (Hallez, 1879) | Aug-Sep 1892 | | | Tow-netting in the narrow creeks that run in between the rocks produced young specimens of Leptoplana tremellaris, Convoluta paradoxa, Plagiostoma vittatum, and Cylindrostoma inerme. |
| Leptoplana tremellaris (Müller, 1773) | Aug-Sep 1892 | | | Tow-netting in the narrow creeks that run in between the rocks produced young specimens of Leptoplana tremellaris, Convoluta paradoxa, Plagiostoma vittatum, and Cylindrostoma inerme. |
| Convoluta paradoxa Ørsted, 1843 | Aug-Sep 1892 | | | Tow-netting in the narrow creeks that run in between the rocks produced young specimens of Leptoplana tremellaris, Convoluta paradoxa, Plagiostoma vittatum, and Cylindrostoma inerme. |
| Plagiostomum vittatum (Frey & Leuckart, 1847) | Aug-Sep 1892 | | | Tow-netting in the narrow creeks that run in between the rocks produced young specimens of Leptoplana tremellaris, Convoluta paradoxa, Plagiostoma vittatum, and Cylindrostoma inerme. |
| Promesostoma marmoratum (Schultze, 1851) | Aug-Sep 1892 | | | Not uncommon in tide-pools in Wembury Bay, Drake's Island, and Redding Point. |
| Provortex balticus (Schultze, 1851) | Aug-Sep 1892 | | | This species is apparently not common at Plymouth during August and September. It occurs between tide-marks, most commonly in Wembury Bay. |
| Plagiostomum girardi (Schmidt, 1857) | Aug-Sep 1882 | | | At extremely low spring-tide, Wembury Bay.. |
| Cylindrostoma elongatum (Levinsen, 1879) | Aug-Sep 1882 | | | Tide-pools. |