Aquatic lifeforms are organisms which live underwater for most or all their lives. Aquatic environments may include the ocean, rivers, lakes, ponds, swamps and wetlands.
All items (493)
R
S
- Sahagin
- Salt-Lion
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- Sand Jelly
- Sangomon
- Satan's Shark
- Scarfish
- Scorpio-pede
- Sea Beast
- Sea Creature (The Cleveland Show)
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- Sea Devil
- Sea Dragon
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- Sea Monster (20,000 Patties Under the Sea)
- Sea Monster (Hilda)
- Sea Monster (Luca)
- Sea Monster (MonsterVerse)
- Sea Monster (Tales from the Crypt)
- Sea Monster (The Pirates! In an Adventure with Scientists!)
- Sea Mutant
- Sea Rhinoceros
- Sea Serpent (Hilda)
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- Sea Slug (Pirates of the Caribbean)
- Sea Swine
- Sea Urchin Pirate
- Sea Vampire
- Seadramon
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- Seahomon
- Seahorse Pirate
- Seashell Pirate
- Seismitoad
- Servitor
- Shady Shin
- Shark (Malibu Shark Attack)
- Sharkenstein
- Sharkodile (The Loud House)
- Sharktopus
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- Sharpedo
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- Ship in a Bottle Pirate
- Shuine
- Siren (Ice Age)
- Sirenjaw
- Sisu
- Siyokoy
- Skeleton Pirates
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- Slickribbon
- Slime Eel
- Slogfish
- Slowbro
- Slowking
- Spindletrooper
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- Squiddy
- Starmie
- Startooth
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- Stunfisk
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- Sue, Rayce and Brea's Leafy Sea Dragon/Human Hybrid
- Sulphuric Dwelling Critter (Teenage Mutant Ninja Turtles)
- Super Shark
- Supergator
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- Surgeonfish (Hilda)
- Swampert
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- Swimmon
T
- Tailed Beast
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- Tapu Fini
- Tate's Subterranean Creature
- Tentacruel
- Termina Bass
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- Termina Seabass
- The Crab (Teenage Mutant Ninja Turtles)
- Three-Eyed Fish
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- Totenkopf Gatekeeper Robot
- Toxapex
- Toxic Shark
- Trailer Park Shark
- Trench Monster
- Trilobite conchadurus
- Triseraquin
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- Trunko
- Turtleman
- Tusoteuthis vampyrus
- Two Head (Pirates of the Caribbean)
- Tylomon
- Tylosaurus (Jurassic Park)
W
- Wailord
- Walvark
- Watcher in the Water
- Water Elemental (Face Off)
- Water Horse
- Water Person
- Water Snake (Amphibia)
- Water Spirit (Hilda)
- Water Tektite
- Watergulp
- Finn Waters
- Weed Creature
- Whamon
- Wheelback
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- Whulk
- Wishiwashi
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- Wugtrio
- Wyvern (Pirates of the Caribbean)