The toros or brush-tailed rats, genus Isothrix, are a group of spiny rats found in tropical South America, particularly in the Amazon Basin.
The white-faced spiny tree-rat is a spiny rat species from South America. It is found in Brazil, French Guiana, Guyana and Suriname.
The giant tree-rat 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 and its tributaries.
The Atlantic bamboo rat, or southern bamboo rat, is a spiny rat species found in humid tropical forests in Argentina, Brazil and Paraguay. It is the only member of the genus Kannabateomys.
The tuft-tailed spiny tree rat is a spiny rat species 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 Lonchothrix. Very little is known about this rodent. It is small with an average adult weight of about 138 grams. It is nocturnal and solitary in habits.
The short-tailed spiny-rat or Huallaga spiny rat, is a spiny rat species found in Bolivia, Brazil, Colombia, Ecuador and Peru.
The Guyenne spiny-rat or Cayenne spiny rat, is a spiny rat species found in Brazil, Colombia, French Guiana, Guyana, Suriname and Venezuela.
The long-tailed spiny rat is a spiny rat species found in Bolivia, Brazil and Paraguay.
Robert's spiny-rat or Para spiny rat, is a spiny rat species found in Brazil. This species is named after the collector Alphonso Robert, who collected the holotype of this species in 1901.
The Napo spiny rat is a spiny rat species found in Brazil, Colombia, Ecuador, Peru and Venezuela.
Simons's spiny rat is a spiny rat species found in Bolivia, Brazil, Colombia, Ecuador and Peru. It was named for American scientific collector Perry O. Simons.
Tome's spiny rat, 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 Peruvian tree rat 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 Colombian spiny-rat is a species of rodent in the family Echimyidae. It is found in Colombia and Venezuela.
The Boyacá spiny rat is a species of rodent in the family Echimyidae. It is endemic to Colombia; it is found primary forest in Carare River valley, Boyacá Department, 100 to 500 meters above sea level. Nocturnal, terrestrial and solitary, it feeds on seeds, fruit and some leaves and insects. It is threatened by habitat loss for mining and agriculture.
The Pacific spiny rat is a species of rodent in the family Echimyidae. It is found in Ecuador and Peru.
The Guaira spiny-rat 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)
The Minca spiny rat is a species of rodent in the family Echimyidae. It is endemic to Colombia.
O'Connell's spiny-rat is a species of rodent in the family Echimyidae. It is endemic to Colombia.
The Trinidad spiny rat is a species of rodent in the family Echimyidae. It is found in Trinidad and Tobago and northern Venezuela.
