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Chaetomys subspinosus. (Olfers, 1818) The bristle-spined rat (Chaetomys subspinosus) is an arboreal rodent from the Atlantic forest in eastern Brazil. Also known as the bristle-spined porcupine or thin-spined porcupine, it is the only member of the genus Chaetomys and the subfamily Chaetomyinae. [2] It was officially described in 1818, but ...
The Brazilian arboreal mouse (Rhagomys rufescens) is a South American rodent species of the family Cricetidae. [2] It is found in the Atlantic Forest of southeast Brazil, often close to bamboo thickets. It can be distinguished from Rhagomys longilingua, the only other species in its genus, by the absence of spines among the hair. [3]
The long-tongued arboreal mouse (Rhagomys longilingua) is a South American rodent species of the family Cricetidae. [2] It is found in a variety of habitats, including dense forest, in Bolivia and Peru at elevations from 450 to 2,100 metres (1,480 to 6,890 ft) on the eastern side of the Andes. [1] The species is at least partly arboreal.
Caviomorphs, the first rodents to reach the continent, are believed to have washed ashore after rafting across the Atlantic from Africa over 30 million years ago. [8] More recently, ancestral sigmodontine rodents [9] apparently island-hopped from Central America 5 million or more years ago, [10] [11] [12] prior to the formation of the ...
Species: O. cleberi. Binomial name. Oecomys cleberi. Locks, 1981. Oecomys cleberi, also known as Cleber's oecomys [2] or Cleber's arboreal rice rat, [1] is a species of rodent in the genus Oecomys of family Cricetidae. Known only from the Federal District in Brazil, its taxonomic status relative to O. concolor and O. paricola is unresolved.
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Cerrado climbing mice are medium-sized mice with a head-and-body length of 125 to 145 mm (4.9 to 5.7 in) with dull reddish gray-brown dorsal pelage. The underparts are white or pale cream, typically with gray bases to the hairs. The tail is slightly longer than head-and-body length, has a tuft of long hairs at the tip and is medium to dark ...
New World porcupines are stout animals, with blunt, rounded heads, fleshy, mobile snouts, and coats of thick, cylindrical or flattened spines. The "quills" are mixed with long, soft hairs. They vary in size from the relatively small prehensile-tailed porcupines, which are around 30 cm (12 in) long, and weigh about 900 g (32 oz), to the much ...