Rex and Hairless
A variant of Rat (fancy) (Rattus norvegicus)
Representative Rat (fancy)photo — a dedicated image of this exact morph isn't available yet.
Coat mutations producing curly rex fur with curled whiskers, or the nearly furless hairless (sometimes called Sphynx) variety.
Other Fancy Rats variants
Agouti (wild-type)Self colors (black, beige, blue, mink, champagne)Hooded / Berkshire / Capped markingsDumboSiamese / Himalayan (colorpoint)Dalmatian / Roan / Husky markingsSelf colours (black / blue / champagne)HoodedBerkshireCapped / BlazedSiamese / HimalayanDumbo (ear type)Rex (curly coat)HairlessSatin