Image Key > Cnidaria > Hydrozoa > Hydroidmedusae > Leptomedusae > Obelia sp.
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.
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