Animal Crossing City

Sea Butterfly

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"I caught a sea butterfly! I didn't even use a net!" —Wild World
"I caught a sea butterfly! Wonder if it used to be a sea caterpillar?" —City Folk
"I caught a sea butterfly! I didn't even use a net!" —New Leaf
Sea Butterfly
Scientific name Clione limacina
Family Clionidae
Time of year Winter
Time of day All day
Location Unknown
Size 5 cm
Catch size Unknown
Shadow size Tiny
Rarity Uncommon (***)
Sale price 1,000 Bells
Appearances Animal Crossing: Wild World,
Animal Crossing: City Folk,
Animal Crossing: New Leaf
Regional names Flag of Italy small Cavolinia
Species #
Animal Forest Not Present
Animal Crossing Not Present
Dōbutsu no Mori e+ Not Present
Animal Crossing: Wild World 36
Animal Crossing: City Folk 38
Animal Crossing: New Leaf 43

Sea Butterflies (Order Gastropoda; Clione limacina), are a species of mollusk/mollusc that live in the sea. They can be caught during winter and are the only winter fish that cast such a small shadow in the sea, and so can be identified with ease. Its appearance during winter is a reference to how it is found in cold waters in real life.

The Sea Butterfly was first introduced in Animal Crossing: Wild World, and has appeared in every game since.

Donating to the Museum

The sea butterfly can be donated to the Museum by talking to Blathers. Below is what is says during the donation:

In Wild World

The sea butterfly is in the same family as snails, as you may or may not know. You might think it's strange to have a snail without a shell, eh wot? Indeed, well, slugs are also snails without shells! I must admit, being lumped in with slugs probably angers the sea butterfly

In City Folk

It occupies a large glass tube in the lower-right corner of the fish exhibition, with other small oceanic fish.

In New Leaf

Sea butterflies go with the flow, as they'll drift in cold winter waters along with ice floes. They are called "ice-floe angels" because of the mysterious way they swim with their winglike arms. Their heads will open up when they make an attempt to catch their helpless prey. Once its head is opened, it grabs its prey with six special feelers called "buccal cones". The only place you'll find both cold water and tropical sea butterflies swimming together is in this game.

Encyclopedia Information

Wild World

Sea Butterfly (Wild World) Sea Butterfly (Wild World icon) ''Its a snail, it eats sea butterflies and shellfish. It navigates the water by flapping its "wings."

Icon fishSize- 1.2 inches
Icon houseHabitat- Ocean
Icon calendarSeason- Winter

City Folk

Sea Butterfly (City Folk) ''Some say these resemble angels, but they look like devils when they feed."

Icon fishSize- About 1.2 inches
Icon houseHabitat- Ocean
Icon calendarSeason- Winter

New Leaf


Further information

Sea Butterfly

A real-life sea butterfly.

The name Sea Butterfly often causes confusion. The true Sea Butterflies are a distantly related cousin of Sea Angels (the latter of which appears in Animal Crossing under the name Sea Butterfly). Where Sea Angels are shell-less mollusks with a close resemblance to slugs, true Sea Butterflies retain their shells and look more like deep sea snails. However, the name Sea Butterfly has widely been used for both, as Sea Angels are occasionally called Naked Sea Butterfly as a reference to its lack of shell.


The 'true' Sea Butterfly, a distant cousin to the 'Naked' Sea Butterfly seen in Animal Crossing.

Sea angels can be found in the cold waters of the Arctic Ocean, Antarctic Ocean and in the North Atlantic; mirrored, in-game, by their appearance during the winter months. They can grow up to 5 centimeters in length.

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