Ganoid

Ganoids are bipedal creatures which evolved from sea-going, eel-like ancestors. They are still semi-aquatic, and are capable of respiration under water as well as on land. They have a ritualistic warrior culture, and there are often multiple conflicts occuring at once across the surface of their native planet.

Skullfish

Large, undulating, eel-like monstrosities, Skullfish are dangerous predators. They are solitary creatures, often found following pods of dolphins or schools of fish to pick off the weak and old. When no live prey is available they will feed from carrion and waste. Skullfish seem to have the ability to breathe in both air and water, and have been known to squirm onto beaches to catch unwary prey.