| Species | Name Used |
|---|---|
| Ascidia pygmaea Michaelsen, 1918 | Ascidia pygmaea (p. ) |
| Ecteinascidia hedwigiae Michaelsen, 1918 | Ecteinascidia hedwigiae (p. ) |
| Microcosmus sulcatus unspecified | Microcosmus sulcatus (p. ) |
| Styela marquesana Michaelson, 1918 | Styela marquesana (p. ) |