The coypu (Myocastor coypus), otherwise known as nutria or River rat, is a large, semi-aquatic rodent. In spite of being a separate species, the animal is sometimes mistaken for a beaver or otter. These rodents are 'a boon and a bane', in the sense...
The Red-crested tree-rat (Santamartamys rufodorsalis) is a species of tree-rat found in South America. It is nocturnal and is believed to feed on plant matter. It is a very rare and poorly known small rodent known only from three specimens.
The armored rat (Hoplomys gymnurus ) is a species of rodent in the family Echimyidae. It is monotypic within the genus Hoplomys. It is found in Latin America, from northern Honduras to northwest Ecuador. It possesses a range of spines on its back...
The painted tree-rat (Callistomys pictus ) is a species of spiny rat from Brazil, restricted to north-eastern Bahia in eastern Brazil. It is the only species in the genus Callistomys.
For Asian bamboo rats (family: Spalacidae), see Bamboo rat. The Amazon bamboo rat (Dactylomys dactylinus ) is a species of spiny rat from the Amazon Basin of South America. It is also referred to as coro-coro, Toró, Rato-do-Bambú, or Rata del Bambú...
Tome's spiny rat (Proechimys semispinosus ), also known as Tomes' spiny rat or the Central American spiny rat, is a species of spiny rat distributed from Honduras to Ecuador. The IUCN has assessed its conservation status as being of "least concern".
The common punaré, Thrichomys apereoides, is a species of spiny rat endemic to Brazil.
Isothrix barbarabrownae is a recently discovered species of rodents of the spiny rat family Echimyidae.
The giant tree-rat (Toromys grandis ) is a species in the family Echimyidae, the spiny rats. It is the only species in the monotypic genus Toromys. It is endemic to Brazil, where it occurs in the flooded forest along the banks of the Amazon River...
Owl's spiny rat, Carterodon sulcidens, is a rodent species from South America in the family Echimyidae. It is found in Brazil. It is the only species in the genus Carterodon. The Owl's spiny rat has evolved from a single species that has had...
The black-spined Atlantic tree-rat, (Phyllomys nigrispinus ), is a South American spiny rat species in the family Echimyidae. It is found in southeastern Brazil, where it inhabits moist broadleaf forest and semideciduous forest in the Atlantic...
The Atlantic bamboo rat (Kannabateomys amblyonyx ), or southern bamboo rat, is a spiny rat species from South America, found in humid tropical forests in Argentina, Brazil and Paraguay. It is the only member of the genus Kannabateomys.
The Guyenne spiny-rat, Proechimys guyannensis, or Cayenne spiny rat, is a spiny rat species from South America. It is found in Brazil, Colombia, French Guiana, Guyana, Surinam and Venezuela.
Ferreira's spiny tree-rat, Mesomys hispidus, is a spiny rat species from South America. It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela.
The white-faced spiny tree-rat, Echimys chrysurus, is a spiny rat species from South America. It is found in Brazil, French Guiana, Guyana and Suriname.The etymology of the species name derives from the two ancient greek words χρυσός (khrusós ),...
The Colombian soft-furred spiny-rat (Diplomys caniceps ), or arboreal soft-furred spiny-rat, is a species of rodent in the family Echimyidae.It is found in Colombia and Ecuador.Its natural habitat is subtropical or tropical moist lowland forests.
The Brazilian spiny tree rat (Makalata didelphoides ) is a species of rodent in the family Echimyidae. It is found in Bolivia, Brazil, French Guiana, Guyana, Suriname, Venezuela, and Trinidad and Tobago where it lives in lowland tropical rainforest....
The bare-tailed armored tree-rat (Pattonomys occasius ) is a species of arboreal rodent in the family Echimyidae. It is found in lowland tropical rainforest east of the Andes in Ecuador and Peru.
The Peruvian tree rat (Makalata rhipidura ) is a species of rodent in the family Echimyidae. It is found in northeastern Peru and adjacent Ecuador, where it is found in the Amazon rainforest. It is nocturnal and arboreal.The etymology of the species...
The orange-brown Atlantic tree-rat or red-nosed tree-rat (Phyllomys brasiliensis ), is a spiny rat species from South America. It is found in Brazil.
The short-tailed spiny-rat, Proechimys brevicauda, or Huallaga spiny rat, is a spiny rat species from South America. It is found in Bolivia, Brazil, Colombia, Ecuador and Peru.
The Guyanan spiny-rat, Proechimys hoplomyoides, is a spiny rat species from South America. It is found in Brazil, Guyana and Venezuela. The species was first described by George Henry Hamilton Tate in 1939.
The highlands punaré, Thrichomys inermis, is a caviomorph rodent of South America from the spiny rat family. It is endemic to gallery forest, savanna and rocky outcrop habitats in Bahia State within the Caatinga ecoregion of eastern Brazil at...
Fischer's guiara (Euryzygomatomys spinosus ), is a South American spiny rat species found in Argentina, Brazil and Paraguay. It is one of only two species in the genus Euryzygomatomys. Its karyotype has 2n=46 and FN=88.
The Paraguayan punaré, Thrichomys pachyurus, is a caviomorph rodent of South America from the spiny rat family. With its skull averaging 55 mm long, it is the largest species in the genus Thrichomys. It is found in savannas and forest edges in...
The tuft-tailed spiny tree rat (Lonchothrix emiliae ) is a spiny rat species from South America. It is known from Brazil south of the Amazon River, where it has been found in grassland and gallery forest. It is the only species in the genus...
The broad-headed spiny rat (Clyomys laticeps ) is a spiny rat species from South America. The etymology of the species name is the Latin word laticeps meaning "wide-headed".
The dark spiny tree-rat (Echimys saturnus ) is a species of rodent in the family Echimyidae.It is a rarely encountered and nocturnal species, found in eastern Ecuador and central Peru.As compared to Echimys chrysurus, the main diagnostic character...
The long-tailed spiny rat, Proechimys longicaudatus, is a spiny rat species from South America. It is found in Bolivia, Brazil and Paraguay.
The Guaira spiny-rat (Proechimys guairae ) is a species of rodent in the family Echimyidae. It is endemic to Venezuela. It is commonly referred to as 'casiragua' to avoid confusion with true rats (Muroidea)
Echimys vieirai is a spiny rat species from South America, described in 2005. It is found in Brazil.The species name vieirai is a patronym for the Brazilian mammalogist Carlos Octaviano da Cunha Vieira, curator of the Mammal Collection at the Museum...
Brandt's guiara, Euryzygomatomys guiara, is a Brazilian spiny rat species. It was formerly considered conspecific with E. spinosus.
The rufous soft-furred spiny-rat (Diplomys labilis ), known as ratón espinoso meaning "spiny" or "thorny" rat in Spanish, is a species of rodent in the family Echimyidae.It is found in Colombia, Ecuador, and Panama. In November 2015, it was spotted...
Simons's spiny rat, Proechimys simonsi, is a spiny rat species from South America. It is found in Bolivia, Brazil, Colombia, Ecuador and Peru. It was named for American scientific collector Perry O. Simons.
The yellow-crowned brush-tailed rat, Isothrix bistriata, is a South American brush-tailed rat species from the family Echimyidae. It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela.They are nocturnal and arboreal animals found in...
The dusky spiny tree rat (Makalata obscura ) is a species of rodent in the family Echimyidae. It is endemic to Brazil.The etymology of the species name corresponds to the Latin word obscurus meaning dark.
The Trinidad spiny rat (Proechimys trinitatis ) is a species of rodent in the family Echimyidae. It is found in Trinidad and Tobago and northern Venezuela.
The white-tailed olalla rat (Olallamys albicauda ) is a species of rodent in the family Echimyidae.It is a medium-sized rat with a reddish-brown dorsum, a whitish venter, and a tail characterized by a whitish tip.It is endemic to Colombia. Its...
Phyllomys sulinus, the southern Atlantic tree-rat, is a species of spiny rat from South America, described in 2008.It is found in the subtropical region of southern Brazil, from the states of São Paulo to Rio Grande do Sul.The etymology of the...
The Bolivian bamboo rat (Dactylomys boliviensis ), is a species of spiny rat from South America.
Cuvier's spiny-rat, Proechimys cuvieri, is a spiny rat species from South America. It is found in Brazil, French Guiana, Guyana, Peru and Suriname.
The golden Atlantic tree-rat, Phyllomys blainvillii, is a spiny rat species from South America. It is found in Brazil.
