Level 2 Canon
This page contains content that is considered "level 2 canon" and may be contradicted by the TV series.

Slug Monster is a Corrupted Gem that appeared in Issue 4 of the Steven Universe comic series. She was seen attacking Beach City and kidnapping its residents.

Appearance

The Slug Monster resembles a giant green sea slug. She has a long, predominantly green, body that has three pairs of green legs. One pair of club-like antennae is seen on her head with two large eyes below them. Another pair of bent antennae is found near the end of her body. On her back is a long strip of purple where sacs that can hold smaller creatures are located.

Abilities

  • Opisthobranchia Physiology: The Slug Monster has similar appearance and innate abilities akin to that of most opisthobranchs, specifically the sea slugs.
    • Sequestration: She has shown that she has the ability to capture smaller creatures and hold them in sacs located on her back.

History

Issue 4

The Slug Monster is seen attacking Beach City and kidnapping the townspeople. Lion is able to save the townspeople by teleporting them to safety before the Crystal Gems finish her off.

Issue 5

Steven and Connie talk about the attack, mentioning that during the Slug Monster's rampage she consumed the entire public library.

Trivia

  • The Slug Monster resembles a sea slug in the genus Costasiella.
    • The sea slug sequesters the photosynthetic plastids of various algae they consume and keep them in sac-like processes located on their backs and use it for themselves.

Gemstone

Image Description
Catterpillar Gemstone.png Her gemstone is located on her mouth.

Gallery

v • e Comic Gems
Adventure Time: 2013 Spoooktacular #01

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Steven Universe (2014-2015)

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Steven Universe (2017-2018)

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Steven Universe and the Crystal Gems

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One-Shots

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Steven Universe: Too Cool for School

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v • e Characters in Steven Universe
Crystal Gems Human-Gem Hybrids: Steven Universe

Unfused Gems: Amethyst • Biggs Jasper • Bismuth • Lapis Lazuli • Larimar • Pearl • Peridot • Ruby • Sapphire • Snowflake Obsidian
Fusion Gems: Alexandrite • Crazy Lace Agate • Garnet • Mega Pearl • Obsidian (Rose Quartz Fusion) • Opal • Rainbow Quartz • Sardonyx • Sugilite
Hybrid Fusions: Obsidian (Steven fusion) • Rainbow Quartz 2.0 • Smoky Quartz • Steg • Stevonnie • Sunstone
Inactive Gems: Rose Quartz
Humans: Connie Maheswaran
Pets: Lion • Pumpkin • Cat Steven

Homeworld Gems Unfused Gems: Comby • Emerald • Pebbles • Peridots • Sapphires • Spinel

Fusion Gems: Malachite • Topaz • Zebra Jasper (fusion) • Giant Ruby • Ruby (triple fusion) • Lemon Jade • Bluebird Azurite
Inactive Gems: Pink Diamond

Off Colors Unfused Gems: Padparadscha • Rutile Twins

Fusion Gems: Fluorite • Rhodonite
Humans: Lars Barriga

Other Gems (Formerly) Corrupted Gems: Albite • Angel Aura Quartz • Big Bird • Biggs Jasper • Bixbite • Blue Chalcedony • Blue Lace Agate • Cherry Quartz • Chrysocolla • Desert Glass • Earth Beetle • Grossular Diopside • Heaven Beetle • Jasper • Lace Amethyst • Larimar • Moonstone • Nephrite • Ocean Jasper • Orange Spodumene • Snowflake Obsidian • Tongue Monster • Unknown Giant Gem Monster • Water Bear • Watermelon Tourmaline • White Topaz • Zebra Jasper (singular) • Minor Corrupted Gems

Other Gems: Minor Gems • Unknown Gems (Morganite • Nephrite-XJ Cut-763 • Unknown Quartz Warrior • Blue Diamond's Court • Pink Diamond's Entourage • Unknown Crystal Gems • 67 Elite Citrines • Pyrites • Hessonites, Demantoids, and Pyropes • Kyanites)

Forced Fusions: Cluster Gems (The Cluster)

Comic Gems: Ant Gem Monster • Clock Tower Gem • Frozen Fragment • Glass Ghost • Invisible Manta Ray • Mole Gem Monster • Mollusk • Monster Lizard Gem • Obelisk • Old Book Gem • Plant Monster • Perils of Pweepwee • Rainbow Cloud Monster • Red Bird Gem Monster • Red Eel Monster • Scorching Shard • Slime Gem Monster • Slug Monster • Snowbeast • Tentacle Monster • Unknown Giant Bird • Vine Monsters

Other Major Characters Humans: Greg Universe • Sadie Miller
Recurring Characters Humans: Andy DeMayo • Barbara Miller • Bill Dewey • Buck Dewey • Buddy Buddwick • Dante and Martha Barriga • Doug Maheswaran • Priyanka Maheswaran • Harold Smiley • Jamie • Jane • Jenny Pizza • Kevin • Kiki Pizza • Kofi Pizza • Marty • Mr. Fryman • Mystery Girl • Nanefua Pizza • Onion • Peedee Fryman • Quentin Frowney • Ronaldo Fryman • Shep • Sour Cream • Suitcase Sam • Vidalia • Yellowtail • Zoomans (F-3 • Jay-Ten • U-12 • Wy-Six)

Other: Baby Melon • Blue Crabs • Cactus Steven • Holo-Pearl • Magic Moss • Steven Jr. • Watermelon Stevens

Minor Characters Humans: The Best Diner in the World's Waitress • Empire City Wildlife Rehabilitation Center Employee • Gary • Greg's family (Aunt and Uncle • Aunt Deb • Grandfather • Parents) • Hospital Employees (Dr. Gero • Dr. Stromberg • Dr. West) Jeff • Khajima, Jaime, and Brandish • Marty's Roadies • Mayoral Bodyguards • Mike Krol • Onion's Friends (Garbanzo • Pinto • Soup • Squash) • Patricia and Daniel • Ricky • Sabina • Steven's Babysitter • Sunshine Justice • William Buford Buchanan • William Dewey • Minor Human Characters

Animals: Butt Lobster • Crystal Basilisk • Dog • Mask Island Fish • Onion's Mouse • Onion's Snake • Party Guy • Raccoon • Seagulls • Snake • Steven The Third • Susan • Minor Animal Characters
Aliens: Beetle Aliens • Bird Blob Aliens • Ungulate Aliens • Worm Aliens • Flower-Like Aliens • Minor Alien Characters

Fictional Characters Cookie Cat • Dogcopter • Mearl • Pizza Jenny • Minor Fictional Characters

Camp Pining Hearts: Paulette • Percy • Pierre
"Garnet's Universe": Foxman • Hopper • Hoppy • Ringo
Golf Quest Mini: Ace • Ace's Father
Li'l Butler: Li'l Butler • Mr. Money • Mrs. Money • Daughter Money • Dirtbike Money
Lonely Blade: Evil Janitor • Lonely Blade • Lonely Blade's Brother
Rose's Room: Cloud Connie • Tiny Floating Whale
The Spirit Morph Saga: Archimicarus • Lisa • Plinkman • Wind Lizard

Antagonists Centipeetles • Crab Monsters • Crystal Shrimp • Drill Parasites • Electric Skulls • Frybo • Red Eye • Robot Shooty Thing • Smoke Monster
Alter Egos Billy Bank Assets • Chunk Truck • Concrete Heat • Dashing Danny Doober • Handsome Hank Hackleschmidt • Howl Jones • Loch Ness Bloggster • Purple Puma • Sea Wasp • Shark-O-Mania • Tiger Millionaire
Attack the Light Blue Light • Green Light • Indigo Light • Orange Light • Red Light • Violet Light • White Light • Yellow Light

Groups: Light Army • Blue Monsters • Green Monsters • Indigo Monsters • Orange Monsters • Red Monsters

Save the Light Hessonite • Squaridot • Hessonite's Citrines
Unleash the Light Demantoid • Pyrope
The Phantom Fable Fable • Lonely Pearl • Jasper (Eyeball)
Groups The Cool Kids • Crystal Gems • Crystal Temps • "Famethyst" • The Great Diamond Authority • Homeworld Gems • Off Colors • Pebbles • Sadie Killer and the Suspects • Secret Team • Steven and the Stevens ā€¢ Water Clones • Zoomans • Species
Gem Types Aquamarines • Bismuths • Diamonds • Garnets • Jades • Lapis Lazulis • Nephrites • Pearls • Pebbles • Peridots • Quartzes • Rubies • Sapphires • Topazes
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