Aquatic creatures refers to creatures that are sea-based versions of land-based creatures (such as sea elves). It can also include marine creatures that resemble a land-based creature, and fill the same role in the underwater ecosystem.
|Aventi||Dungeons and Dragons Settings|
|Hippocampus||Dungeons and Dragons Settings|
|Hydrosaurus||The World (dot Hack)|
|Merfolk||Dungeons and Dragons Settings|
World of Darkness
|Merren||Etheria (Mage Wars)|
|Watcher (Guardians)||Mid Realms|