Abyssinian

The Abyssinian breed of Guinea pig is known for its short and long, rough coat that has rosetted of hair. The derivation of the breed's name is unknown, but does not connotate an origin in the geographical region of Abyssinia (present day Ethiopia). The ideal Abyssinian has 8 rosettes, one on each shoulder, four across the back, one on each of the animal's hips, and two on the rump. Some judging bodies, such as the ANCC, consider shoulder rosettes optional but desired in show cavies. A harsh-textured coat that stands on end to form ridges is desired.

http://en.wikipedia.org/wiki/Abyssinian_guinea_pig#Abyssinian