| Citation | Calder, D.R., 1991 Abundance and distribution of hydroids in a mangrove ecosystem at Twin Cays, Belize, Central America. Hydrobiologia 216/217:221-228. |
| Ref. | 86642 Calder, D.R., 1991 |
| Page | 223 |
| Named Used as Valid | Halecium nanum |
| Locality | |
| Distribution | Belize. |