Coelacanth

The Coelacanth is an fish that can be found in the ocean. It appears all year, from 4PM to 9AM, and only in rainy weather. When selling it to Re-Tail, the player will earn 15,000 Bells.

Location
The Coelacanth is found in the ocean.

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

"Coelacanths are ancient fish once believed to be extinct but recently discovered around South Africa. Called "living fossils," they have apparently changed very little over the past 400 million years. They can live for over 60 years and reach lengths of six feet but have rather small brains, even for fish. They have more fins and harder scales than the average fish, making them a rather resilient breed. Their flavor is very different from most fish, and they contain a fat that is indigestible by humans. It's for that second reason that eating them really isn't highly recommended."

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

"Holy fish sticks! I caught a coelacanth! Am I saying it right?"