| Convoluta sagittifera Ivanov, 1952 | prior to 1975 | | | |
| Plagiostomum whitmani Graff, 1911 | Jul 26, 1949 | 16 m | | |
| Childia groenlandica (Levinsen, 1879) | prior to 1975 | | mud | |
| Childia submaculatum (Westblad, 1942) | prior 1975 | | mud | |
| Cylindrostoma fingalianum (Claperede, 1861) | Jul 26, 1949 | | | |
| Allostoma pallidum Beneden, 1861 | Jul 26, 1949 | 16 m | | |
| Cylindrostoma inerme (Hallez, 1879) | Aug-Sep 1892 | | | |
| Leptoplana tremellaris (Müller, 1773) | Aug-Sep 1892 | | | The Hamoaze. Stones and debris covered with mud-tubes of Polydora caeca, tenanted, however, by an Amphipod, Corophium Bonellii. |
| Plagiostomum pseudomaculatum (Gamble, 1893) | Aug-Sep 1892 | | | The Hamoaze. Stones and debris covered with mud-tubes of Polydora caeca, tenanted, however, by an Amphipod, Corophium Bonellii. Among the weed-tubes of Polydora caeca in the Hamoaze. |
| Cylindrostoma inerme (Hallez, 1879) | Aug-Sep 1892 | | | The Hamoaze. Stones and debris covered with mud-tubes of Polydora caeca, tenanted, however, by an Amphipod, Corophium Bonellii. In dredgings. |
| Automolos ophiocephalus (Schmidt, 1861) | Aug-Sep 1892 | | | The Hamoaze. Stones and debris covered with mud-tubes of Polydora caeca, tenanted, however, by an Amphipod, Corophium Bonellii. |
| Automolos horridus Gamble, 1893 | Aug-Sep 1892 | | | The Hamoaze. Stones and debris covered with mud-tubes of Polydora caeca, tenanted, however, by an Amphipod, Corophium Bonellii. A single specimen in the Hamoaze. |