| Common Name | Sessile hydrozoans |
| Language | English |
| Type | Vernacular |
| Official Trade Name | No |
| Rank | 3 - (Other common name) |
| Country | United States (contiguous states) |
| Locality | |
| Ref. | Smithsonian Institution, 2014 |
| Life Stage | juveniles and adults |
| Sex | females and males |
| Core | behavior |
| 1st Modifier | |
| 2nd Modifier | |
| Remarks |