| Zonorhynchus tvaerminnensis (Karling, 1931) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Koinocystis tvaerminnensis Karling, 1931 | | w | primary taxonomic authority (describer) | 44-53, Figs. 58-71 |
| Placorhynchidae Placorhynchus Karling, 1931 | | w | primary taxonomic authority (describer) | |
| Placorhynchus octaculeatus Karling, 1931 | | w | primary taxonomic authority (describer) | 26-44, Figs. 26-57 |
| Placorhynchus octaculeatus octaculeatus Karling, 1931 | | w | primary taxonomic authority (describer) | |
| Acrorhynchides robustus (Karling, 1931) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Acrorhynchus robustus Karling, 1931 | | w | primary taxonomic authority (describer) | 10-26, Figs. 3-25 |
| Polycystis robusta (Karling, 1931) | | w | primary taxonomic authority (describer) | |
