Which animals have an X in their name?

Here are some animals with an X in their name:

1. Xenopus (a type of frog)

2. Xerus (a type of African ground squirrel)

3. Xoloitzcuintli (a rare breed of dog, also known as Mexican Hairless Dog)

4. Xiphactinus (an extinct species of fish)

These are just a few examples. There may be other animals with an X in their name as well.