Rat breeders – is this a sphinx or simply a dwarf?

My wife and Agouti hooded man had a litter of 10 puppies on August 27. 4 have mustaches Curly and seems to be very small compared with their furry brethren. 3 of those with curly whiskers are solid color and rex (tight curly) hair. It is a blue hood and has no hair at all. Is it possible that a hairless sphinx or Rex?? I think the mother of the baby's father was a very small woman rex. I'm not 100% sure. Mom's parents are an Agouti Dumbo (same color as it is) and a PEW which is now yellow, not pure white. It is very old. Picture of baby blue hood with his brother black cap: http://i364.photobucket.com/albums/oo83/steelheart/rats/1babysize.jpg Mom: http://i364.photobucket.com/albums/oo83 / steelheart/rats/1minimomma1.jpg Dad: http://i364.photobucket.com/albums/oo83/steelheart/rats/1davesteveSF2.jpg Garbage: http://i364.photobucket.com/albums/oo83/steelheart/rats / 1ababy.jpg

If there is any hair on the previous line, then it is possible, could also be a double rex, which is hairless

Cat Bath Time! (Sphinx – Hairless Breed)