Jellyfish

The Jellyfish (クラゲ, Kurage) is a saltwater fish in the introduced in. It is unique in that it has the shortest range of any fish at only two weeks (August 16th through August 31st), and that it has the lowest selling price of any fish at 100 Bells.

While not catchable in, Jellyfish appear in as obstacles while swimming that stun the player if swam in to.

A similar species, the Moon Jellyfish, appears in as a sea creature introduced in the 1.3.0 Free Summer Update.

Donating to the museum
As with all fish, bugs, and sea creatures in the, the Jellyfish can be donated to the museum by talking to Blathers. He will tell the player the following upon donation:

In
The Jellyfish appears in the museum's right circular tank. It just hovers in the same place, occasionally jumping forward a bit.

In
During a Fishing Tourney, when given a Jellyfish, Chip will say the following:

Real-world information
The flower hat jelly is a rare species of hydrozoa found in waters off Brazil, Argentina, and southern Japan. Despite the name, it is not a species of jellyfish, for it belongs to the class Hydrozoa instead of Scyphozoa. The flower hat jelly can grow to be about 15 cm (6 inches) in diameter. Its sting is non-lethal but painful. Its diet consists mostly of small fish.

Jellyfish have been around since the time of the dinosaurs, and have no brains, causing them to be largely researched by scientists.