RE DTW?

[WOLFSTORM]

Hi I got a gerbil rescuee with no background - I had been thinking he
was DTW until I looked up the genetics and realized that is a black eyed
gerbil.  This is a white gerbil with a very dark tail, no 'points' and
red eyes or pink eyes.  What is he and what is his genetic makeup
please?  Thank you-KJ