| author | date | title | journal / publication | Steinböck O | 1937 | The fishery grounds near Alexandria. 14. Turbellaria. Ministry of Commerce and Industry, Egypt; Hydrobiology and Fisheries Directorate. Notes and Memoirs No. 25. | Gov. Press, Cairo, pp 1-15 |
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| Opistomum serpentina Dalyell, 1853 | w | latest taxonomic authority | ||
| Neoplanocera steueri (Steinböck, 1937) | - | primary taxonomic authority (describer) | ||
| Stylochus alexandrinus Steinböck, 1937 | w | primary taxonomic authority (describer) | 1-5, figs. 1-3 | |
| Stylochus alexandrinus Steinbock, 1937 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Planoceridae Cirroposthia Steinbock, 1937 | w | primary taxonomic authority (describer) | 5 | |
| Cirroposthia steueri Steinbock, 1937 | w | primary taxonomic authority (describer) | ||
| Neoplanocera steueri (Steinbock, 1937) | [with synonyms] | w | primary taxonomic authority (describer) |