agente w/white belly and ruby eyes

[Susan Fitts]

I picked up a gerbil today that is so different. It looks red fox w/ruby eyes but has a white belly.  I combed through genetics info but I haven't found anything which describes that.  I know agouti has white belly but the fur isn't like that...it is reddish like my red fox and has the same ruby eyes.  Any input on this would be great!  She's a really pretty girl. Sue