| author | date | title | journal / publication | Ax P, Weidemann E, Ehlers B | 1978 | Zur Morphologie sublitoraler Otoplanidae (Turbellaria, Proseriata) von Helgoland und Neapel. [On the morphology of sublittoral Otoplanidae (Turbellaria, Proseriata) from Helogoland and Naples.] | Zoomorphologie 90:113-133. |
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| Monostichoplana filum (Meixner, 1938) | [with synonyms] | w | latest taxonomic authority | |
| Orthoplana foliacea (Meixner, 1938) | w | latest taxonomic authority | ||
| Otoplana filum Meixner, 1938 | w | latest taxonomic authority | ||
| Otoplana foliacea Meixner, 1938 | w | latest taxonomic authority | ||
| Pseudorthoplana foliacea (Meixner, 1938) | [with synonyms] | w | latest taxonomic authority | 120-124, Figs. 4, 5 |
| Monostichoplana filum neapolitana Ax, Weidemann & Ehlers, 1978 | w | primary taxonomic authority (describer) | 114-119, Figs. 1A, B, 2, 3 | |
| Otoplaninae Napoliplana Ax, Weidemann & Ehlers, 1978 | w | primary taxonomic authority (describer) | 129 | |
| Napoliplana cinctata Ax, Weidemann & Ehlers, 1978 | w | primary taxonomic authority (describer) | 129-133, Fig. 9 | |
| Otoplaninae Pseudorthoplana Ax, Weidemann & Ehlers, 1978 | w | primary taxonomic authority (describer) | 119-120 | |
| Otoplaninae Xenotoplana Ax, Weidemann & Ehlers, 1978 | w | primary taxonomic authority (describer) | 124 | |
| Xenotoplana acus Ax, Weidemann & Ehlers, 1978 | w | primary taxonomic authority (describer) | 124-127, Figs. 6, 7 | |
| Xenotoplana tyrrhenica Ax, Weidemann & Ehlers, 1978 | w | primary taxonomic authority (describer) | 127-129, Fig. 8 | |
| Orthoplana filum (Meixner, 1938) | w | latest taxonomic authority |