| author | date | title | journal / publication | Krumwiede A, Witt J | 1995 | Zur Verbreitung freilebender Plathelminthen im Weserästuar. | Microfauna Marina 10: 319-326 |
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| Gnathorhynchus sp. Krumwiede & Witt, 1995 | - | primary taxonomic authority (describer) | 323 | |
| Cystiplana sp. Krumwiede & Witt, 1995 | - | primary taxonomic authority (describer) | 323 | |
| Zonorhynchus salinus Karling, 1952 | w | other research on this sp. | ||
| Zonorhynchus seminascatus Karling, 1956 | w | other research on this sp. |