Here you go....
Omega Dungeon
Zaurus
Floating Death
Black Element
Halma
Puroboros
Spirit
Machea
Master Coeurl
Master Tonberry
Varuna
Tonberry is a tricky little guy who rarely appears.
You can capture monsters from all over Spira, just go to all areas and fight monsters. (You can't capture machina)
For more help go to this website
http://www.gamefaqs.com/console/ps2/game/27609.html Good Luck! <img src="/images/graemlins/smile.gif" alt="" />