In contrast to the land, there was animal life in the sea, strange aquatic beasts rarely seen and rarely caught.
The fierce "yonk-yonk" that issued from the 'gator's throat proved that the aquatic beast was fully enraged.
The creature was a good distance away, but it was rolling in the shallow water; Gus judged it to be an aquatic beast of some sort.
In the Dungeons & Dragons fantasy role-playing game, the sea cat (also known as the "sea lion") is an aquatic magical beast.
Apparently an aquatic beast, this child of the Ogdru Jahad resembled an eyeless serpent with sharp crustacean legs lining its pale underbelly.
While crossing a lake he is swallowed by the Windsucker, a giant aquatic beast that disguises itself as a rock.
But the sea they now went through, Azhriaz and Tavir, began to have an emptiness, not merely of fish and aquatic beasts, but of all robust things.
He is depicted dispelling the serpents from Ireland that are portrayed as various aquatic beasts, some are fabulous.
I could see him as an air-breathing aquatic beast that had developed human intelligence.
Perhaps he could start a new whale-hunting industry, pursuing the enormous aquatic beasts for sport.