| author | date | title | journal / publication | Lundin K | 2001 | Degenerating epidermal cells in Xenoturbella (phylum uncertain), Nemertodermatida and Acoela (Platyhelminthes). | Belg J Zool 131 (Suppl 1): 153-157 |
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| Nemertoderma bathycola Steinböck, 1930 | w | other research on this sp. | ||
| Xenacoelomorpha Nemertodermatida Karling, 1940 | w | other research on this sp. | ||
| Xenacoela Acoela Uljanin, 1870 | w | other research on this sp. |