Chambered nautilus

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Artwork of chambered nautilus
Real-world info
Name: Nautilus pompilius
Family: Nautilidae
Main appearances

Other appearances
Names in other languages

The chambered nautilus (オウムガイ, Ōmugai) is a type of sea creature introduced in Animal Crossing: New Leaf.

While initially absent from Animal Crossing: New Horizons, the chambered nautilus was added in the 1.3.0 Free Summer Update in July 2020, where it appears all day long as a medium-sized, medium-speed shadow from spring to early summer, and again during fall.

Catch details[edit]

In New Leaf[edit]


Chambered nautilus
"I got a chambered nautilus! Who loses? Not us! Just go with it..."

Time of year All year (only on Tortimer Island)
Time of day All day
Peak times N/A
Shadow size Medium
Shadow movement Uniform
Sea creature size 35 cm
Selling price  900 Bells
Furniture size 1.0 x 1.0

In Pocket Camp[edit]


Chambered nautilus

Availability Not currently available
  • 2019-02-18 – 2019-02-25 (Fishing Tourney #11: Pink Crystal)
  • 2022-06-12 – 2022-06-19 (Fishing Tourney: Utmost Post)
Location Saltwater Shores PC Map Icon.png Saltwater Shores
Size 29.2 cm – 40.7 cm
Version added Unknown

In New Horizons[edit]


Chambered nautilus
"I got a chambered nautilus! Is it on the naughty list?"

Time of year North: Mar – Jun; Sep – Nov
South: Mar – May; Sep – Dec
Time of day 4 PM – 9 AM
Shadow size Medium
Shadow movement Medium
Spawn requirement Catch 20 total sea creatures
Selling price  1,800 Bells
Furniture size 1.0 x 1.0

Donating to the museum[edit]

In New Leaf[edit]

Upon donating a chambered nautilus to the museum, it can be found in the small tank on the left hand side in the first room of the sea exhibit. The exhibit has this to say about the chambered nautilus:

"These creatures are related to both octopi and squids and originated about 60 million years ago. They have air and body fluid in their shells and move by adjusting the amount of body fluid inside. This allows them to either float or sink depending on the situation they find themselves in. They have nearly 90 tentacles that stick out from under their shells to grab on to rocks or prey."

In New Horizons[edit]

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

"The chambered nautilus is perhaps best known for its gorgeous shell. Not only does this shell's interior shine with a pearly luster, it features a near-perfect natural spiral. But those aren't the chambered nautilus's only bragging rights. This cephalopod can have up to 90 tentacles, it's said! These arms come coated with a sticky substance that helps the nautilus capture its prey... Which is far better than using then for overly long hugs, I say."

Fishing Tourney[edit]

In New Leaf[edit]

During a Fishing Tourney, when given a chambered nautilus, Chip will not score the sea creature but will say the following:

"Hmm. Chambered nautilus, huh? Do you think these might taste like octopus? You know what? I think I'll pass on eating this guy. Gotta listen to the gut on this one! Always trust it!"


Real-world information[edit]

A real-life chambered nautilus

The chambered nautilus is the best-known species of nautilus. The shell, when cut away, reveals a lining of lustrous nacre and displays a nearly perfect equiangular spiral, although it is not a golden spiral. The shell exhibits countershading, being light on the bottom and dark on top. This is to help avoid predators, because when seen from above, it blends in with the darkness of the sea, and when seen from below, it blends in with the light coming from above.

Nautilidae as a family, both extant and extinct, are characterized by involute or more or less convolute shells that are generally smooth, with compressed or depressed whorl sections, straight to sinuous sutures, and a tubular, generally central siphuncle. Having survived relatively unchanged for hundreds of millions of years, nautiluses represent the only living members of the subclass nautiloidea.

Although once thought to be a living fossil, the chambered nautilus is now considered taxonomically very different from ancient ammonites, and the recent fossil record surrounding the species shows more genetic diversity among nautiluses now than has been found since the extinction of the dinosaurs. Indeed, the taxon of the chambered nautilus, Nautilus pompilius is actually a grouping of tens of different species of nautilus under one name.
More information on this topic is available at Wikipedia.

Names in other languages[edit]

Japanese オウムガイ
Nautilus (lit. "Cockatoo conch")

European French Nautile -