| Plagiostomum girardi (Schmidt, 1857) | [with synonyms] | w | other taxonomic work | 346, t. 12, f. 3, 13-16; t. 13, f. 1, 2, 10; t. 14 |
| Pseudostomidae Monoophorum Bohmig, 1890 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Plagiostomum sulphureum Graff, 1882 | | w | other taxonomic work | 360, t. 12, f. 9; t. 13, f. 6; t. 15, f. 17-21; t. |
| Plagiostomum maculatum Graff, 1882 | | w | other taxonomic work | 386, t. 12, f. 20; t. 13, f. 9; t. 14, f. 1,2; t. |
| Plagiostomum reticulatum (Schmidt, 1852) | [with synonyms] | w | other taxonomic work | 204, t. 13, f. 7,8; t. 15, f. 40-47; t. 17, f. 12- |
| Plagiostomum dioicum (Mecznikow, 1865) | | w | other taxonomic work | 241, t. 17, f. 20; t. 20, f. 11; t. 21, f. 10 |
| Plagiostomum chromogastrum Graff, 1890 | [with synonyms] | w | other taxonomic work | 379, t. 12, f. 1; t. 15, f. 34-39; t. 19 f. 5; t. |
| Pseudostomum quadrioculatum (Leuckart, 1847) | [with synonyms] | w | other taxonomic work | 291, t. 12, f. 6; t. 18, f. 6,7; t. 20, f. 17; t. |
| Pseudostomum klostermanni (Graff, 1874) | [with synonyms] | w | other taxonomic work | 447, t. 12, f. 2; t. 14, f. 4; t. 15, f. 48; t. 18 |
| Monoophorum striatum (Graff, 1878) | [with synonyms] | w | other taxonomic work | 269, t. 12, f. 5, 7, 8, 12; t. 13, f. 3; t. 14, f. |
| Cylindrostomidae Monoophorum Bohmig, 1890 | | w | primary taxonomic authority (describer) | |
| Cylindrostomidae Monoophorum Bohmig, 1890 | | w | latest taxonomic authority | |
