| Hydrorhiza, stolon and branch width | 100−150 |
|---|---|
| Hydranth | |
| width across extended tentacles | 1000−1800 |
| length of tentacles | 400−500 |
| length of body including hypostome | 420−.680 |
| hypostome height | ~100 |
| maximum diameter of body | 150−300 |
| Gonophore | |
| mature female, diameter | 200− 260 |
| mature male, length of linear cluster | 500−600 |
| mature male diameter distal chamber | 200−.230 |