Sea slug

The Sea Slug (ウミウシ, Umiushi) is a type of sea creature in the, introduced in.

While initially absent from, the Sea Slug was added in the 1.3.0 Free Summer Update.

In
Upon donating a Sea Slug to the museum, it can be found in the large pool in the first room of the sea exhibit, along with many other species of sea creatures. It is found near the entrance of the exhibit. The exhibit has this to say about the Sea Slug:

In
When donating to the museum, Blathers will say the following:

It can then be found in the coral reef tank.

In
During a Fishing Tourney, when given a Sea Slug, Chip will not score the sea creature but will say the following: