Skinny Pig

Guinea Pig

Very few varieties of hairless Guinea pig exist, the most prevalent breed being the Skinny pig. Skinnies were developed from a hairless lab strain crossed with Teddies and other haired breeds. They have curly Teddy hair on their noses, feet and legs. Skinnies are born nearly hairless. Another well-known hairless Guinea pig is the Baldwin. The Baldwin was a spontaneous mutation from White Crested cavies belonging to a cavy fancier who was breeding them for show. Baldwins are born with a full coat which falls out until they are bald.

http://en.wikipedia.org/wiki/List_of_guinea_pig_breeds