Xiphactinus

A ferocious carnivorous aquatic monster. Though often spotted around estuaries, this highly adaptable creature has even been found living in oases. It looks menacing with its sharp claws along and the single horn on its head, especially when it appears before travelers in the desert, blocking the path to oases before them. It has a strong tail, is able to contort its body into different shapes, and is capable of jumping high above the water. Though its meat is delicious, it is very boney so there isn't usually much to eat.