Species that live underwater. For species that can survive on land as well as water, see Amphibious species.
“Mermen were a race of aquatic beings that lived in the seas of Earth. Mermen had a fish's tails...Merman
“The Waterhive were creatures composed of water. In their true form, they resembled limpets with...Waterhive
“Kar-Charratans were aquatic life forms who lived on Kar-Charrat that survived in liquid form...Kar-Charratan
“Water Hag was a term humans used to describe an advanced race of alien creature native to the...Water Hag
“The Kronosaur was a type of large pliosaur. They were massive creatures, some reaching 80 feet...Kronosaur
This category has only the following subcategory.
- [+] Cephalopod species (1 C, 10 P)
The following 19 pages are in this category, out of 19 total.