| Species | Name Used |
|---|---|
| Oerstedia venusta Iwata, 1954 | Oerstedia venusta (p. 15 ) |
| Paranemertes peregrina Coe, 1901 | Paranemertes peregrina (p. 15 ) |
| Prostoma graecense (Bohmig, 1892) | Prostoma graecense (p. 29 ) |
| Siphonenteron bilineatum Meneghini, 1847 | Lineus bilineatus (p. 10 ) |
| Tetrastemma candidum Müller, 1774 | Tetrastemma candidum (p. 35 ) |
| Tetrastemma coronatum (Quatrefages, 1846) | Tetrastemma coronatum (p. 32 ) |
| Tetrastemma nigrifrons Coe, 1904 | Tetrastemma nigrifrons (p. 31 ) |
| Tetrastemma pinnatum Iwata, 1954 | Tetrastemma pinnatum (p. 34 ) |
| Tetrastemma stigmatum (Stimpson, 1857) | Tetrastemma stigmatum (p. 35 ) |
| Tetrastemma verinigrum Iwata, 1954 | Tetrastemma verinigrum (p. 32 ) |
| Tetrastemma yamaokai Iwata, 1954 | Tetrastemma yamaokai (p. 32 ) |
| Tubulanus ezoensis Yamaoka, 1940 | Tubulanus ezoensis (p. 6 ) |
| Tubulanus punctatus (Takakura, 1898) | Tubulanus punctatus (p. 5 ) |
| Zygonemertes glandulosa Yamaoka, 1940 | Zygonemertes glandulosa (p. 19 ) |