The bristle-spined rat (Chaetomys subspinosus) is an arboreal rodent from the Atlantic forest in eastern Brazil. Also known as the bristle-spined porcupine...

of its skull and the greater complexity of its teeth, contains the bristle-spined rat (C. subspinosus), a native of the hottest parts of Brazil. This animal...

covered with dense spines, pale yellow at the base and black-tipped, and significantly darker on the midback. The bicolored-spined porcupine has a fully...

and includes all species of the family with the exception of the bristle-spined rat, Chaetomys subspinosus, which is classified in its own subfamily,...

Baturite porcupine - C. baturitensis - a newly discovered species Bicolored-spined porcupine - C. bicolor Streaked dwarf porcupine - C. ichillus Bahia porcupine...

it can increase when agitated. When threatened, an adult porcupine can bristle its quills, displaying a white stripe down its back, and use its teeth...

orange-spined hairy dwarf porcupine (Sphiggurus villosus) has been reclassified to this species. Its closest relatives are the bicolored-spined porcupine...

†Hexolobodon †Hyperplagiodontia †Isolobodon †Rhizoplagiodontia The bristle-spined rat, Chaetomys subspinosus, has sometimes been classified in Echimyidae...

(dassie rat) Family Thryonomyidae (can rats) Family Erethizontidae (bristle-spined rat and New World porcupines) Family Chinchillidae (chinchillas, vizcachas)...

forests at elevations up to 1500 m. The body is covered with short, thick spines that are whitish or yellowish in color, mixed with the darker hair, while...