The Blue Blubber has a dome-shaped bell that can grow to 35 cm across, and is the most common jellyfish in south-east Queensland. Its name is slightly misleading because in southern Queensland and Victoria it is blue whereas in the Sydney region it is white or brown, due to the presence of plant cells in the substance of the body. These Blubbers are often found in dense swarms, swimming just below the surface of the water. Occasionally hundreds of individuals are washed up on beaches. Although it does not usually cause a serious sting to humans, cold packs or wrapped ice should be applied.
This species is native to eastern Australia, distributed from Torres Strait to Victorian waters.
Blue Blubber (Catostylus mosaicus), Wild Guide to Moreton Bay
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