Can Blue Blubber Jellyfish Sting?

Can Blue Blubber Jellyfish Sting? Catostylus mosaicus, aka the blue blubber jellyfish, is a species from coastal regions in the Indo-Pacific. … The blue blubber has a dome-shaped bell that can grow to 35 cm across. The sting can be sometimes painful but generally poses no serious risk to humans. Is blue blubber jellyfish dangerous?