An aquatic race that I came up with a novel I eventually plan to write. It's an extraterrestrial race, aquatic in nature. They spend most of their time in water, but they can and do survive for long periods on land thanks to their tough, denticle-covered skin that is rather like that of a shark's. Their skin both reduces drag while they are in their aquatic environment, and also prevents them from drying out when out of the water.
They are an omnivorous species that feeds mostly on fish supplemented with kelp and other underwater plants. They survive both in fresh and saltwater environments, though the two breeds differ slightly in color and appearance. There is a sizable population of freshwater Iisowy living in the Lifeblood River, particularly in the Sage city of Ninevale in Derinth Forest.