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This is a list of types of animals that have appeared in SpongeBob SquarePants. Most of the show's characters are based on real-life sea creatures, but only a few of the characters' exact species/scientific names have been revealed.


SpongeBob SquarePants and his family are sea sponges. In real life, sea sponges cannot walk or swim on their own, so they eat by filter-feeding (straining the surrounding water for nutrient particles). Many sea sponges reproduce by "budding," which is when a portion of the sponge breaks off and becomes a complete animal.

In The SpongeBob Musical, SpongeBob's exact species name is identified: Aplysina fistularis, a yellow sea sponge commonly found in open waters.


Sea snail

There are many species of sea snails in real life. In the series, the sea snail is the underwater equivalent to cats. The most notable is Gary the Snail. Others include Snellie the Snail, Mrs. Puff's snail, the alley snails Mary the SnailMary's ex-boyfriend, the black snail from "One Krabs Trash," the black snail from the book Bad Luck DayFoofieDan the Orange SnailDaniel the SnailDrake the SnailElderly snailHaibi the SnailJerryLarry LucianoLary the Snail,Lighthouse Louie, Miss TuffsyMuffsies the SnailPat the SnailDave's snailPrehistoric Gary, the bully snailVictoria the Snail, and the party Snails from "Atlantis SquarePantis" and "What if SpongeBob Was Gone? (Gary)."




The only slug who has appeared on the show is Gary's father, Sluggo. A saddened SpongeBob refers to Gary as a "lowly slug" in "Shell Shocked."


Giant clam

Giant clams take the place of animals such as wolves, as they are sometimes shown howling ("Texas") and attacking people ("Tea at the Treedome"). The most notable clam is Old Bluelip from the episode "Clams."

Other clams who have appeared on the show are the giant clam from "Tea at the Treedome," the clams from "Texas," the clam from "Porous Pockets," and the clams from "No Free Rides."

  • Old Bluelip
  • Giant clam from "Tea at the Treedome"

Owl clam

An owl clam briefly appears at Floater's Cemetery at night in the episode "One Krabs Trash."


The underwater equivalent to birds, scallops resemble clams but are much smaller in size. A notable scallop is Junior from "Rock-a-Bye Bivalve." Other scallops who have appeared are Mr. Krabs' former pet scallop, the scallops whom SpongeBob kills in "To Love a Patty," and the scallops from "One Krabs Trash."

Technically, this is a family, not a species.

Pearl oyster

Baby Oyster W Mother SP

Clamu and her child

Clamu is a notable pearl oyster who performs at the Bikini Bottom Zoo, as shown in "The Smoking Peanut." Oysters can also sometimes be used as food, such as in "Squidville," where Patrick is mentioned to have eaten fried oyster skins.

Technically, this is a genus.

Snow mollusk

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Abominable Snow Mollusk

A mythical (fictional in reality) creature that attacks and eats sailors. The abominable snow mollusk is in this species.


Mother Sea Whelk inhailing The Krusty Krab

The mother sea whelk and her children

A whelk is a type of sea snail. They appear in "Whelk Attack" as big ravenous beasts, but later turn out to be small and friendly after SpongeBob helps cure them of a disease.



The Tentacles family and most of the other cephalopods are in this species. The most notable is Squidward. Other octopuses who appear are SquilliamSquilvia, and some of the members of the Cephalopod Lodge. Different species of octopuses make occasional appearances, such as a octopus mother and her children from "Sailor Mouth," and a dancer from "Slimy Dancing."

Technically, this is an order, not a species.


The most notable example is Shelia. Some squids, in addition to octopuses, appear in the episode "Cephalopod Lodge" because they are cephalopods. Another squid appears in "Jailbreak!" as one of Plankton's inmates.

Technically, this is an order, not a species.



The only ammonites shown in the series appear in the episodes "SB-129" and "Ugh," during the prehistoric parts of those episodes.

Technically, this is subclass, not a species.


Every species under this section is related by Class.


This is the species that most of the Krabs family is. The only members who are not are Pearl Krabs and Princess Pearl. Mr. Krabs is the most notable of the crabs in the Krabs family.

Other crabs include The Penny Pinchers, The Wise Old Crab and the other crabs from the video games Nicktoons: Battle for Volcano Island and SpongeBob SquarePants featuring Nicktoons: Globs of Doom, Mr. Krabs' double, and the Yeti Krab.

Technically, it is an infraorder, not a species.

Hermit crab


Either the Sneaky Hermit or the hermit thief, if they are not the same crab, and the Victim Hermit.

Only two or three hermit crabs have appeared in the series. The most notable is the Sneaky Hermit, who appeared in the video game Lights, Camera, Pants! and the episode "Life of Crime." The other crab also appears in "Life of Crime," where he is a victim in a fake thievery on a show called Crustacean Crime Theater.

Technically, it is a superfamily, not a species.


Only three lobsters have appeared in the series. The most notable is Larry the Lobster. The other lobsters are Federico the Waiter, who appears in the video game Employee of the Month, and the lobster who works at Fin Locker, who appears in the PC version of the game The SpongeBob SquarePants Movie video game.

Technically, it is a family, not a species.

  • The lobster who works at the Fin Locker
  • Federico the Waiter
  • Larry the Lobster


A shrimp makes a brief appearance in "The Algae's Always Greener." There is also a villain based on the species called Jumbo Shrimp.

Technically, this is an infraorder and a suborder. The suborder is also the same for the prawn.

Brine shrimp (sea monkey)

In the show, these resemble actual monkeys. They appear in "Not Normal" and "Plankton's Pet."

Technically, this is a genus, but is also considered a family because it is the only genus of its family.




The only prawn ever seen is Prawn, a villain from the Battle for Bikini Bottom and SpongeBob's Truth or Square video games.

Technically, this is a suborder.



Johnny Krill

Johnny Krill is the most notable of the species.

In "BlackJack," krill are described as vermin, with Harold SquarePants saying, "The only crime that ever happened at our house was the infestation of those worthless krill". 

Technically, this is an order, not a species.



Prehistoric arthropods that are now extinct. They appear in SB-129 and in the opening credits of "Ugh."

Technically, this is a class, not a species.

Single-Celled Organisms


Sheldon J. Plankton is classified under this species. Other plankton include the members of Plankton family who appeared in "Plankton's Army," Sheldon's grandmother who appeared in Gramma's Secret Recipe, Plankton's grandfather and other ancestors in "One Coarse Meal," Planktonamor from "Dunces and Dragons," Dead Eye Plankton from "Pest of the West," and Papa Plankton from the book Hooray for Dads!.

  • Sheldon and Some of his Cousins
  • Plankton's Ancestors
  • Grandma Plankton
  • Grandpa Plankton
  • Papa Plankton
  • Planktonamor
  • Dead Eye Plankton
  • Past Plankton
  • Plank-Ton


Notable amoeba seen in the series include Spot from Plankton's Pet, as well as numerous amoeba from Goo Goo Gas.

Technically, this is a genus.


Starfish (Sea Star)

This species contains most of Patrick's family. The most notable is Patrick Star. The only other starfish that have appeared in the series besides the Starfish in Patrick's family are Janet and Marty from "I'm with Stupid", the starfish who mistakenly crowned Patrick king of Bikini Bottom in "Rule of Dumb", a few starfish at Shell City in The SpongeBob SquarePants Movie, and Patrick Not-Star from Hide and Then What Happens?.

Technically, this is a class, not a species.

Sea Urchin

The underwater equivalent of bugs/cockroaches. They appear in Nature Pants, Your Shoe's Untied, and Eek! An Urchin. A larger, talkative variety of sea urchin appears in Squidward's School For Grown-Ups.

Technically, this is a class, not a species.

  • SpongeBob covered in poison sea urchins
  • Patrick's beard, later proving to be an urchin

Limbless Creatures


Worms are the underwater equivalent to dogs. The worms that appear on the show are Mr. DoodlesRexGuard WormWorm from AppleworldJan the WormKenney the WormMax the WormMrs. Squiggles, and the unnamed worm from "Karate Choppers."

  • Unnamed worm
  • Worm from Appleworld (and SpongeBob's Hand)
  • Rex
  • Guard Worm
  • Jan (and Owner)
  • Kenney the Worm
  • Max (Charles, and Foofie)
  • Mr. Doodles
  • Mrs. Squiggles (and Owner)

Alaskan Bull Worm

Alaskan Bull Worm

Alaskan Bull Worm

A large worm species that is feared by the people of Bikini Bottom, as it eats everything in its path and leaves destruction in its wake. 

Flatworm (Tapeworm)

Two Flatworms have been seen on the show: Tapey from "Pest of the West" and the primitive tapeworm from "SB-129."

  • Primitive tapeworm
  • Tapey



The Earworm

While in reality this is just an expression for catchy music, in the SpongeBob universe it is a species that inhabits the heads of people who become too obsessed with music. Appearing in an episode of the same name, an earworm infects SpongeBob and later Squidward.

Spotted Glistening Meadow Worm

A worm that appears in "Pet or Pests." It is noted to be a highly valuable species.

French Poodle Worm

Peanut Worm

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Mrs. Puff's Penut Worms

A peanut-like species of worm, unlike its real-life counterpart. They appear in Growth Spout, as pets owned by Mrs. Puff.

Technically, this is a Phylum.

Worm hogs

Worm hogs are the underwater equivalent to pigs. In the episode ”FarmerBob”, Old Man Jenkins keeps wormhogs at his farm.

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Madame Hagfish

Madame Hagfish is a notable member of this species, appearing in Curse of the Hex.

Technically, it is family, but it is the only one in its order and its class.



Baby Nudibranches

In the SpongeBob universe, nudibranches resemble small cute fish, which can evolve into huge, monstrous and dangerous creatures, Puffy Fluffy being a notorious example. In reality, nudibranches are sea slugs and look nothing like the aforementioned.

Technically, this is a clade.


Numerous leeches are briefly seen in Prehibernation Week, along with a place called the Leech Farm which was only mentioned. An Ancestor of Gary that was a leech appeared in "Dunces and Dragons."

Technically, this is a subclass.


Eels occasionally appear in the series. This includes the brown eel that appears in Your Shoe's Untied. They were mentioned in the episode Sailor Mouth when the game Eels and Escalators is played.

Technically, this is an order, not a species.

Golden Eel


Golden Eel

This creature appears in "Curse of the Hex."

Eel (Cephalopod Lodge)

Moray Eel CPL

Moray Eel

Seen in "Cephalopod Lodge," as an enemy of the cephalopods. The initiation of the lodge would involve a potential member to be attacked by the eel.

Technically, this is a family, not a species.


Worm-like creatures that are known for damaging buildings. They appear in "Home Sweet Pineapple" and "Best Day Ever."

Technically, this is a phylum.



Poppy Puff is the most notable organism in this species. The only other known pufferfish are her deceased husband, Mr. Puff, his ancestor Polene Puff, and the Unnamed Pufferfish at Shell City in The SpongeBob SquarePants Movie.

Technically, this is a family, not a species.

  • Poppy Puff
  • Mr. Puff
  • Unknown Pufferfish
  • Polene Puff


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Anchovies, in the SpongeBob universe, are known for making sounds like "meep", though can speak English as well. They are notorious around the Krusty Krab for gathering in large schools for food, nearly destroying the restaurant in the pilot episode. 


A family of sharks is seen in SpongeGuard on Duty. Notable sharks include Sharkey Two-Times from SpongeBob Diner Dash 2, Seymour Scales from SpongeBob's Boating Bash, and Sergeant Sam Roderick from Mrs. Puff, You're Fired. A shark also appears in Kenny the Cat, being ridden by its titular character.

  • Sharkey Two-Times
  • Sergeant Rodrick
  • Seymour Scales

Hammerhead Shark

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Gill Hammerstein

A hammerhead shark makes a quick appearance in Mermaid Man and Barnacle Boy (in the episode of the same name). Gill Hammerstein from Lights, Camera, Pants! is also this species. Sharkface is the most notable character of this species.


SBSPTM Anglerfish3


This includes the frogfish from The SpongeBob SquarePants Movie. Like actual frogfish, it uses its tongue to attract food, SpongeBob and Patrick in this case.

Angler Fish

Angler fish appear in "Rock Bottom" and "Don't Look Now."



Contrary to real-life standards, the lionfish is a fish with a lion's head and claws. One appears in "Spongicus," set to attack Patrick who has sausages around his neck, but ends up attacking Plankton instead.

Technically, this is a genus.

Sea Rhinoceros

Sea rhinoceros

So far only one has appeared in "The Camping Episode." It is a fictional species.

Sea Bear

Sea bear

Sea Bear

Sea bears are the underwater equivalent to surface bears. It is a fictional species. One appears in "The Camping Episode."


Its name appears in "Sailor Mouth" as dumpster writing. SpongeBob also dresses up like one in "Whale of a Birthday."


My Pretty Seahorse 07


Seahorses are the equivalent of actual horses on the surface. The most notable is Mystery, who only appeared in the episode "My Pretty Seahorse."

Technically, this is a genus.


Flats the Flounder and Flats' dad are the only flounders seen in the series.

  • Flats the Flounder
  • Flats' dad

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Bubble Bass stock image

Bubble Bass


The most notable of this species is Bubble Bass. It was also used for the name of the city Bass Vegas.

Sea Chicken

Mr. Sea Chicken

Mr. Sea Chicken

A fictional species, Mr. Sea Chicken is a member of this. They basically look like normal chickens. Also, in "Code Yellow" there is a Medical Sea Chicken, when SpongeBob asks for one. 

Gulper Eel

One gulper eel appears in the episodes "Rock Bottom" and "The Night Patty."

Electric Eel

Unlike the name suggests, Electric Eels are actually not actually eels, but are instead fish. The only electric eels that appear are in "Walking Small" and "Enchanted Tiki Dreams."

This is the only species in its genus.


Jellyfish are commonly known in the series to represent bees, due to their stings and jelly. There are known to be Queen Jellyfish just like bees, however there are King Jellyfish as well. The species are involved in the practice of jellyfishing. While pink is the most common color of a jellyfish, they can come in different physical appearances and species.

Technically, this is a subphylum.

  • common jellyfish
  • dragon jelly
  • Friend (formerly known as No Name)
  • Blue-crested blaster
  • Glowing three-spot
  • Two-fisted jumper


They appear in "FarmerBob," where one stings SpongeBob while using Old Man Jenkins' tractor to mow his kelp garden. They appear to sting pretty hard.

Jellyfish Cow

The Jellyfish Cow is a Jellyfish. The only known Jellyfish Cow is Old Man Jenkins cow, Ol' Bessy. Ol' Bessy appears in the episode "FarmerBob." Instead of squirting milk, they squirt jelly.



This is the species that most of the Cheeks family is. The most notable is Sandy. Other squirrels include, The Dark KnightPa CheeksRandy Cheeks, Western Cheeks, Rosie Cheeks, Ma Cheeks, and Sandy's Scottish cousin.

Technically, this is a family, not a species.


Sperm Whale

The series features a sperm whale, Pearl, as one of the main characters. Various other sperm whales have appeared on the show, with their designs based on Pearl's.

Blue Whale

Patrick makes the sound of a blue whale during "You Don't Know Sponge." They are also mentioned in "Plankton. A Thank You Would Be Nice.


Sponge-Cano! 101

The only dolphins that have appeared are the Dolphin Warrior from "Sponge-Cano!" and the dolphins from "Jellyfish Jam."

Orca (Killer Whale)

Two orcas have appeared on the show are Don the Whale and Billy the Orca. They are the only seen characters of this species.

Earless Seal

Craig Mammalton

The only seal to appear in the series is Craig Mammalton in "Sun Bleached."

Technically, this is a family, not a species.


The most notable human in the show is Patchy the Pirate. Other humans include, David Hasselhoff, Mrs. Johnson, Davy Jones, Mr. Pirateson, Burger-Beard the Pirate, The Cyclops, Patchy's party guests in Party Pooper Pants, the children at the playground in The Sponge Who Could Fly, and the unnamed pirates from The Spongebob Squarepants Movie.


In Patty Hype, a restaurant called the Shell Shack is told to have a talking dog, but the people of Bikini Bottom have no idea what dogs are. There's also Plankton's labrador (as a pun) seen in "Plankton!"


No chipmunks appeared, but Sandy is called a chipmunk in "Someone's In The Kitchen With Sandy."


Sandy is called a weasel in "What Ever Happened to SpongeBob?"


A gorilla appears in "I Had an Accident" and "Friend or Foe." In the former episode, Patrick is shown to own a gorilla costume. A gorilla costume is also shown in "Boating Buddies." A gorilla is also seen in the audience for Ned and the Needlefish in "Hello Bikini Bottom!"

Sea Bunny

Sea Bunnies only appears in one episode, "Bunny Hunt". In that episode Squidward finds one in his garden, but SpongeBob finds it cute, so he takes into his home, where it rampages until SpongeBob buys a tamed Sea Bunny. It can have a lot of children, and can both be wild or tamed.

Reptiles/Reptile-like Creatures

Tyrannosaurus Rex


The only Tyrannosaurus Rex that appears is the one at the end of "Ugh."

It is the only species in its Genus and its tribe.


The only Tylosaurus that appears is the one in "Lost and Found." It lives in the "Lost World," which is in the Krusty Krab's Lost and Found.


The only Tanystropheus that appears is the one in "Lost and Found." It live in the "Lost World," which is in the Krusty Krab's Lost and Found.

Fictional Species Not Already Mentioned


Princes Mindy is the only merperson who is seen in SpongeBob SquarePants, and appears in The SpongeBob SquarePants Movie.


Clowns majorly appear in the episode "Don't Feed the Clowns," the main one seen being little clown, though many other clowns are seen in the beginning and at the end.

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