Either the dire shark has a +3 racial modifier to Perception, or the Skill Focus bonus was accidentally added in twice.
In Pathfinder, the bonus from Skill Focus increases to +6 when you have 10 ranks in the skill.
The Dire Shark has a 12 Wisdom and 15HD. Assuming max ranks in Perception as a class skill, his bonus would be
+1 wisdom
+3 class skill
+15 skll ranks
+6 skill focus
=+25 Perception
... as listed.
In Pathfinder, the bonus from Skill Focus increases to +6 when you have 10 ranks in the skill.
The Dire Shark has a 12 Wisdom and 15HD. Assuming max ranks in Perception as a class skill, his bonus would be
+1 wisdom
+3 class skill
+15 skll ranks
+6 skill focus
=+25 Perception
... as listed.
doh! I forgot about the increased SF bonus at 10+ ranks....
Okay, thanks.
Happy to be of service.