Sea slug

The sea slug (ウミウシ, Umiushi) is a type of deep sea creature only found in. This game marks the first appearance of the sea slug.

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

"Although they have no shells, sea slugs are more closely related to spiral shells than anything else. Their vivid colors and patterns and variety of shapes and sizes make them popular with divers. Sea slugs are hermaphrodites, so they are all capable of mating with one another, regardless of gender."