Known as Portuguese Man o' War or Blue Bottles.
Washed ashore on Girgaum & Juhu chowpatty.
Their sting is very dangerous - causes itching, burning, swelling, inflammation, rashness.
This leads to swelling in throat, cardiac distress & breathing problems
Has bubble like body & 18-20 cm long tentacles.
Found more in Mumbai & Goa shores during July to August
What to do if stung ?
Do not touch or rub the skin
Rinse skin with salt water
Put hot water in affected area
Immediately visit doctor
If spotted, avoid beaches & going into sea.