Category of Cryptids that have lived or have been seen in aquatic environment. An aquatic environment consist of an ecosystem dependent (or partially independent) of some body of water (aquatic ecosystems). The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems (including lakes and rivers).
An aquatic cryptid is an creature, either vertebrate or invertebrate, which lives in water for most or all of its life. It may breathe air or extract its oxygen from that dissolved in water through specialised organs called gills, or directly through its skin. Natural environments and the animals that live in them can be categorized as aquatic (water) or terrestrial (land). Animals that move readily from water to land and vice versa are referred to as amphibians.
The term aquatic can in theory be applied to cryptids that live in either freshwater (freshwater animals) or saltwater (marine animals). However, the adjective marine is most commonly used for animals that live in saltwater.
All items (521)
- A-Mi-Kuk
- Abaia
- Aberdeen Carcass
- Abyssal Rainbow Gar
- Adam-Dzhapais
- Adaro
- Afanc
- Aglebemu
- Ah-Een-Meelow
- Ahuitzotl
- Aidakhar
- Akhlut
- Akkorokamui
- File:Akkorokamui.jpg
- Akuchu
- Akurra
- Alaskan Giant Polar Bear
- Alien Spores
- Alkali Lake Monster
- Allier River Monster
- Altamaha-ha
- Alula Whale
- Amabie
- Amali
- Ambize
- Amemasu
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- Amphisbaena
- Angeoa
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- Araǵanaqlta’a
- Arkansas Gowrow
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- Ashuaps
- Asian Mermaids (Matsyāṅganā and Ningyo)
- Ataka Carcass
- Atmospheric Beasts
- Atmospheric Jellyfish
- Auli
- Auli (Africa)
- Australian Enigma
- Australian Snubfin Dolphin
- Avagrah
- Ayia Napa sea monster
- Az-I-Wu-Gum-Ki-Mukh-'Ti
- Bahamut
- Bake-Kujira
- Bakunawa
- Banyoles Monster
- Barmouth Monster
- Barnacle Tree
- Basilosaurus
- Bassigator
- Bear Lake Monster
- Beast of Busco
- Beast Of Tenby
- Beaver Run Snow Gator
- Beebe's Abyssal Fishes
- Belorussian Sky Squid
- Bermuda Beast
- Bermuda Blob
- Bermuda Triangle
- Bessie
- Bhainsasura
- Billdad
- File:Black daemon.png
- Black Demon
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- Bloop
- File:Bloop 2.jpg
- Boat hound
- Bobo
- Boggy Creek Monster
- Borneo's Giant Snakes
- Bownessie
- Brazilian Alien Corpse
- Brosno Dragon
- Bu-Rin
- Bukavac
- Bunyip
- Burach Bhadi
- Buratsche-Al-Llgs
- Cadborosaurus willsi
- Calygreyhound
- Camahueto
- Cameron Lake Monster
- Canadian and Cuban Albino Shark
- Canadian Chupacabra
- Canvey Island Monster
- Cape Sable Serpent
- Carnival Cruise Monster
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- Cassie
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- Cerro Azul Monster
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- Champ
- Chang Nam
- Charles Mill Lake Monster
- Chessie
- Chilean Blob
- Chipekwe
- Cipactli
- Colin's Mega Snake
- Colossal Claude
- Colossal Squid
- Con Rit
- Conakry Monster
- Corfu Island Creature
- Creatures of the Deep Sea
- Cressie
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- Crocodingo
- Crocotta
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- Crypto-Ichthyology
- Cuchivilu
- Cuélebre
- Cyclops Shark
- Gajah Mina
- Gambo
- Ganges Giant Blue Eel
- Garappa
- Gator Man
- Gensou Hyouhon Hakubutsukan
- Giant Acorn Worm
- Giant Catfish
- Giant Dragonfish
- Giant Goldfish
- Giant Jellyfish
- Giant Scuttles
- Giant Snake of Mt. Tsurugi
- Giant Squid
- File:Giant squidd.png
- Giant Triops
- Giddy fish
- Giglioli's Whale
- Glacier Island Carcass
- Gloucester Sea Serpent
- Goliath Frog
- Goofang
- Grampus
- Great Auk
- Greek dolphin
- Grindylow
- Grootslang
- Grotte Cosquer Animal
- Gryttie