Pupfish

The Pupfish is a critter that spawns in the Desert.

It can be caught with a Bug Net to be carried around in the inventory and released later, or crafted into a Pupfish Bowl to be used as furniture. Once crafted, the bowled Pupfish cannot be released again, and when placed down it moves around inside the cage as it would do outside. The Pupfish appears to be considerably rare, spawning infrequently. This may be intended or simply due to the lack of water tiles in the desert.

The Pupfish has a real life counterpart, much like the critter Pupfish are usually only found in intense conditions and isolated locations. Such as the rare Devil's Hole Pupfish which is only found in it's namesake, a water filled cave found in Nevada.