| author | date | title | journal / publication | Reuter M, Raikova OI, Gustafsson MKS | 2001 | abs. | Patterns in the nervous and muscle systems in lower flatworms. | Belg J Zool 131 (Suppl 1): 47-53 |
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| Xenacoelomorpha Nemertodermatida Karling, 1940 | w | other research on this sp. | 47-53 | |
| Platyhelminthes Catenulida Meixner, 1924 | w | other research on this sp. | 47-53 | |
| Platyhelminthes Rhabditophora Ehlers, 1985 | w | other research on this sp. | 47-53 | |
| Xenacoela Acoela Uljanin, 1870 | w | other research on this sp. | 47-53 |