Red king crab

The Red King Crab is a sea creature in the introduced in.

While initially absent from, the Red King Crab was added in the 1.3.0 Free Summer Update.

In
After the player donates a red king crab 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 can be found along with the other crab species. The exhibit has this to say about the red king crab:

In
when donating to the museum Blathers will say the following

The Red King Crab is located in the Sea Butterfly tank in the museum.