Type: Monstrous
Source: Draconomicon
You can make constriction attacks with your tail.
Prerequisite: Dragon, Snatch, Improved Snatch.
Benefit: You can grab and constrict creatures you hit your tail slap attack. This works just like a snatch attack, except that it can be used against any creature smaller than you. If you successfully grab an opponent with your tail, you deal bludgeoning damage equal to your tail slap damage plus 1-1/2 times your Strength modifier. Each round you hold your opponent, you deal constriction damage.
You cannot make tail slap or tail sweep attacks while constricting an opponent with your tail.