The yellow-crowned brush-tailed rat is a South American species of brush-tailed rat in the family Echimyidae. It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela. They are nocturnal and arboreal animals found in lowland evergreen rainforest, probably restricted to igapó and várzea habitats. Sometimes they can be seen at the entrances of their dens, which are often in tree holes on the borders of rivers.
The painted tree-rat 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.
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 Rio Negro brush-tailed rat or dark brush-tailed tree rat, is a spiny rat species found in Brazil.
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.
Ferreira's spiny tree-rat is a spiny rat species found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela. The etymology of the species name corresponds to the Latin word hispidus meaning bristly.
The Guyenne spiny-rat or Cayenne spiny rat, is a spiny rat species found in Brazil, Colombia, French Guiana, Guyana, Surinam and Venezuela.
Cuvier's spiny-rat is a spiny rat species found in Brazil, French Guiana, Guyana, Peru and Suriname.
Mesomys is a genus of South American spiny rats in the family Echimyidae.
Dactylomys is the genus of South American bamboo rats They are arboreal members of the family Echimyidae.
Olallamys is a genus of Andean soft-furred spiny rat that range from Panama through Colombia and Venezuela to northern Ecuador. These species are typically found at elevations above 2,000 metres (6,600 ft).
Diplomys is a genus of rodent in the family Echimyidae. They are found in Costa Rica, Ecuador, Colombia and Panama.
The red-crested tree-rat or Santa Marta toro is a species of tree-rat found in the monotypic genus Santamartamys in the family Echimyidae. It is nocturnal and is believed to feed on plant matter, and is mainly rufous, with young specimens having a grey coat. IUCN list the species as critically endangered: it is affected by feral cats, climate change, and the clearing of forest in its potential range in coastal Colombia.
The Brazilian spiny tree rat 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. There is also a population in Ecuador which is referable either to this species or to Makalata macrurus. It is nocturnal, and eats seeds.
The Colombian spiny-rat is a species of rodent in the family Echimyidae. It is found in Colombia and Venezuela.
The Pacific spiny rat is a species of rodent in the family Echimyidae. It is found in Ecuador and Peru.
Echimyini is a tribe of echimyid rodents, proposed in 2016, and containing 13 extant genera: all of the tree rats Echimys, Phyllomys, Makalata, Pattonomys, Toromys, Diplomys, Santamartamys, and Isothrix, the long recognized dactylomines Dactylomys, Olallamys, and Kannabateomys, and the enigmatic and previously classified as eumysopines Lonchothrix and Mesomys. All these spiny rats genera are arboreal. Worth of note, the arboreal genus Callistomys – the painted-tree rat – does not belong to the tribe Echimyini. Because it is phylogenetically closer to Myocastor, Hoplomys, Proechimys, and Thrichomys than to the above-mentioned Echimyini genera, it is classified in the tribe Myocastorini.
