| Ref. No. | Title |
|---|---|
| 788 | Records of two lancelet species. Asymmetron maldivense and A. lucayanum, from the western North Pacific. |
| 7743 | Ascidians from the coast of Kii Peninsula, middle Japan, with descriptions of two new species. |
| 63306 | Records of two lancelet species. Asymmetron maldivense and A. lucayanum, from the western North Pacific. |