| Provortex rubrobacillus Gamble, 1893 | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. |
| Macrorhynchus croceus (Fabricius, 1826) | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. Dredged on one occasion on the "New Grounds". |
| Macrorhynchus helgolandicus (Metschnikoff, 1865) | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. Probably a search instituted earlier in the year would reveal more localities for these two species. Only a few adults were found, usually each with a single egg-capsule. |
| Promesostoma solea (Schmidt, 1857) | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. |
| Macrorhynchus naegelii (Kölliker, 1845) | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. |
| Leptoplana tremellaris (Müller, 1773) | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. |
| Plagiostomum vittatum (Frey & Leuckart, 1847) | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. |
| Vorticeros luteum Hallez, 1879 | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. A single specimen dredged off the New Grounds. |
| Cylindrostoma inerme (Hallez, 1879) | Aug-Sep 1892 | | | New Grounds, north of the west entrance to the [Plymouth] Sound. |