Sea Slug

The Sea Slug is a fish that can be found underwater. It appears all year, all day. When selling it to Re-Tail, the player will earn 200 Bells.

Location
The Sea Slug is found in underwater in the ocean. Its shadow is small and it moves in a straight line

The Museum
The Sea Slug can be donated to the museum. Upon doing so, the following text is given by Blathers:

"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."

Quote
Upon catching the fish, the player will say the following:

"I got a sea slug! What, it thought it could outrun me?"