Swinerays are creatures native to the planet Altair-3 in the Distabt Worlds Univers.
Swinerays resemble members of the Batoidea famiky. Though with a bald human-like Head with sharp teeth. Their appearance is somewhat ghastly. They are aquatic creatures, but are capable of moving on land and have long tails.
Besides their appearance swinerays are capable of mimicking a human laugh which is unsettling. In addition the human colonists domesticate them as a food source.