American Cavy Breeders Association breeds and varieties, the requirement for permanent earmarking and other show requirements are regulated by ARBA. American Cavy Breeders Association The American Cavy Breeders Association (ACBA) is considered a specialty club under the America Rabbit Breeders Association (ARBA). Like many other specialty clubs under ARBA, the ACBA maintains a membership, awards sweepstakes points, provides special awards, publishes a newsletter and contributes to developing new standards. Some may consider the ACBA to have greater responsibilities than other specialty clubs under ARBA because it is the only specialty club for cavies (Guinea Pigs) and supports all currently recognized breeds whereas most of
Rock cavy Rock cavy The rock cavy or mocó ("Kerodon rupestris") is a cavy species endemic to eastern Brazil, from eastern Piauí state to Minas Gerais state. It has been introduced to the oceanic island of Fernando de Noronha. The rock cavy is a fairly large rodent weighing up to , and like other species of cavies the tail is vestigial or absent. The dorsum is grey and the venter light brown. They are hystricomorphs, which means they have porcupine-like jaw muscles. The rock cavy belongs to the order Rodentia and the family Caviidae. This group has two subfamilies: Dolichotinae and Caviinae.