what breed is my bunny?

Question
My bunny use to weigh somewhere around like 18 pounds when he was younger now hes almost 9 and is weighing around 5. He looks like a wild rabbit all brown with a whit chin,belly and tail. His ears are up and he has brown eyes.  when i have researched and looked up photos but i can't figure it out
heres a photo from goggle.. this looks like him ....
http://i.b5z.net/i/u/469933/i/SW_NCHS_vaughn_1107.jpg
What breed would he be?

Answer
well if you did not heve a typo and your rabbit weighed 18 lbs before and now only weighs 9 lbs he is very sick.  if he was 8 then and now 9 OK the pic looks like a Cross breed rabbit the agouti gene is very dominant and comes up in a lot of crossbreeds, probably cross between a flemish giant and a new zealand or cinnamin or brown silver. check out this web site and you can see more pics. www.ARBA.net
good luck
Dan V