| Cystiplex axi Karling, 1964 | w | other taxonomic work | ||
| Orthoplana mediterranea Ax, 1956 | w | latest taxonomic authority | ||
| Macrostomidae Psammomacrostomum Ax, 1966 | w | primary taxonomic authority (describer) | ||
| Psammomacrostomum equicaudum Ax, 1966 | [with synonyms] | w | primary taxonomic authority (describer) | 31, 59; Figs. 15b, 17 |
| Nematoplana nigrocapitula Ax, 1966 | w | primary taxonomic authority (describer) | ||
| Psammomacrostomum equicaudatum Ax, 1966 | w | primary taxonomic authority (describer) |