One of the mysteries of the English language finally explained.
A genus of marine animals that bear polyps and produce medusae, and that form colonies that attach to rocks or the ocean bottom.
- ‘This slide shows a medusa from the colonial cnidarian Obelia.’
- ‘Cnidarians of the genus Obelia form colonies of polyps in their asexual generation.’
- ‘This is a slide of Obelia, a colonial marine cnidarian that shows a distinct polymorphism in the organization of its members.’
- ‘Obelia is used in many zoology textbooks to exemplify the Hydrozoa life cycle.’
- ‘Although most of the life of Obelia is spent in the sessile polyp form, medusa buds produced within reproductive polyps called gonangia escape into the water column.’
- ‘In the coelenterate Obelia, the egg develops into a colonial hydroid consisting of a series of branching Hydra-like organisms called polyps.’
Modern Latin, from Greek obelos ‘pointed pillar’.
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