all thumbs

I have never seen lice on a rainbow,this morning while exploring a new lake I caught a one of several small rainbows and a buddy wanted to keep one. he was admiring the little guy when he noticed a lice on its tail, and then another on a belly fin. it looked about an 8th of an inch long,was white with 2 legs trailing never seen this before? anybody got any info?

got the skip morris book at a local used book store for 22 bucks. looks pretty good have still only tied a couple flies but they look good.

lea rned to cast and tie from my dad forty years ago and just getting back into it now. starting all over again so basicly a beginner again.just starting to negotiate this post not the greatest comp geek either.