Velella velella (sail jellyfish)
Strain: | Cnidaria |
Class: | Hydrozoa |
Habitat: | Water surface of the high seas, after storms also near the coast |
| Size | Up to 8 cm (diameter of floating disc) |
| Characteristics | Free-swimming hydrozoan colony with a horn-shaped, oval floating disc that encloses a floating body and carries a crescent-shaped sail. The underside of the disc is surrounded by a large feeding polyp, an inner ring of sexual polyps and an outer ring of tentacle-like tentacle polyps. |