Obelia longissima
| Obelia longissima | |
|---|---|
| Obelia longissima | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Hydrozoa |
| Order: | Leptothecata |
| Family: | Campanulariidae |
| Genus: | Obelia |
| Species: | O. longissima |
| Binomial name | |
| Obelia longissima (Pallas, 1766) | |
| Synonyms | |
| |
Obelia longissima is a colonial species of hydrozoan in the order Leptomedusae. Its hydroid form grows as feathery stems resembling seaweed from a basal stolon. It is found in many temperate and cold seas world-wide but is absent from the tropics.