What type of pet rat do I have?

i went to my local pet shop and bought a young 2-5 month old female dumbo rat. Its not your typical black and white rat with the strip down the back, its a grey brownish color and has very short white curl whiskers none of them are straight very short in length curls all bunched to gather. if my rat has those features is it a rex rat or what kind of rat may I have? please answer as soon as possible , thanks
Asked Jan 26, 2015

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