Obelia sp.
Peron and Lesueur 1810
Taxonomy
| Phylum | Cnidaria |
| Superclass | Hydrozoa |
| Class | Hydroidomedusae |
| Subclass | Leptomedusae |
| Order | Proboscoida |
| Family | Campanulariidae |
| Genus | Obelia |
Distinguishing characteristics
- The little medusa of Obelia sp. (up to 6 mm) is very common. It can be recognised by having a thin, flat umbrella, with only a rudimentary velum, and four sac-like gonads located on the middle of radial canals.
Distribution
- Genus Obelia is almost cosmopolitan (O'Sullivan 1982a), but it is uncertain how many species there are.