what bodytype is this?

what bodytype am i?
i used to think i was an endomorph (hard-gainer) cause i was always pretty thin but reading some posts has got me thinking.
 
Before I started working out a lil over 6 weeks ago I was 5'9, 149 lbs., ?% BF (no idea but cut 6-pack)
 
now I am 5'9, 163, and still looking as lean as i was before if not a little leaner (i also used creatine for the first time and committed myself 100% to my diet and protein shakes and muscle&fitness and FitnessRX articles lol)
 
the main question is what distinguishes what body type from another? examples? and what body type am I?
 
I can barey find info on this sort of thing.
 
thx in advance guys!

http://bodybuildingpro.com/bodytypeinformation.html

Yes, that's me in my avatar, and NO, I don't look like that today. That was taken back in Jan '07, and I lost most of that progress when I slacked off last year. I'm on my way back, tho, and I'm using that photo for inspiration.

prolly meso

thx for the link and responses veg and dev :)

first of all an endo morph is a fat person, by no means thin.  An ectomorph is the thin build.

my cousin is an ectomorph but his body looks like a mesomorph
 
ectomorphs can look like mesomorphs if they lift alot and know what their doing
 
he can do 315 in sets