The tentacles were a yard or so in length, each covered top to bottom with stinging cells.

The bumpy appearance that the stinging cells give to the jelly led to its common name.

Tentacles are long "arms" with special stinging cells called nematocysts.

Just like salt water Jellyfish they do have stinging cells.

In some, defensive polyps are found, armed with large numbers of stinging cells.

It is also able to defend itself by shooting stinging cells from openings located on the side of the column.

Among the stinging cells are stalks with red glowing ends.

Do not use fresh or tap water, which can reactivate stinging cells.

Scrape with razor or credit card to remove stinging cells.

These can be grey, pink or green and are packed with stinging cells called cnidocytes.