| Citation | Hilgendorf, F.W., 1910 On some calyptoblast hydroids from the Kermadec Islands. Trans. N.Z. Inst. 43:540-543. |
| Ref. | 89049 Hilgendorf, F.W., 1910 |
| Page | 540 |
| Named Used as Valid | Halecium tenellum |
| Locality | |
| Distribution | England, Australia, and Kermadec Islands. |