When you receive your Beastiary from the Tamer's Guild after your initiation ceremony you will find that every creature is listed despite not taming them all. Besides the eight Soul Beasts, there are ten ranks of creatures and they are sorted by the amount of mana they were able to consume and attack back with.

 

If you'd like the individualized list please follow these links

Soul Beasts  -  Rank 1  -  Rank 2  -  Rank 3  -  Rank 4  -  Rank 5  -  Rank 6  -  Rank 7  -  Rank 8  -  Rank 9  -  Rank 10