Order : Rodentia
Suborder : Sciurognathi
Family : Muridae
Subfamily : Petromyscinae
Genus : Petromyscus
Facts about the genus Petromyscus, the rock mice
If your budget is of utmost concern, and you need performance but not a lot of buttons, the I-Rock mice are just what the Doctor ordered.
Reports indicate that rock mice are omnivorous in diet.
The rock mice are found in southwestern Africa. (Wiki)
The Kingdom of Rock Mice is a huge, environmentally stunning nation, notable for its absence of drug laws. (Full text)