Tail Strike (3.5e Feat)
From D&D Wiki
 Tail Strike, Racial
An attack that lizardfolk can use if they are strong enough and have good coordination.
This feat enables you to gain an extra attack with your tail if you should choose to use it; essentially, this is a tail sweep. This attack isn't very strong, but can be of use when fighting weaker enemies. It deals 1d3 damage points of nonlethal damage.