Brevicaudata (Short Tailed)

The short-tailed chinchilla (Chinchilla chinchilla, formerly known as Chinchilla brevicaudata), also called the Bolivian, Peruvian, and Royal chinchilla, is an endangered species of rodent. Their original range included the Andes Mountains of Argentina, Chile, Peru, and Bolivia. The rodents were exploited for their luxurious fur, causing their numbers to dwindle greatly. Chinchillas’ bodies measure between 28 to 49 centimeters long and weigh around 38 to 50 ounces. They have short front limbs and long, powerful legs that aid in climbing and jumping. Short-tailed chinchillas have thicker necks and shoulders and have much shorter tails than their long-tailed relatives.

http://en.wikipedia.org/wiki/Short-tailed_Chinchilla