The oncilla, also known as the northern tiger cat, little spotted cat, and tigrillo, is a small spotted cat ranging from Central America to central Brazil. It is listed as Vulnerable on the IUCN Red List, and the population is threatened by deforestation and conversion of habitat to agricultural land.
The Brazilian brown bat is a bat species from South and Central America.
The big red bat is a species of vesper bat from South and Central America.
Bokermann's nectar bat is a bat species from South America. It is endemic to Brazil. It feeds on nectar, and is listed as an endangered species.
The least big-eared bat is a bat species of the family Phyllostomidae, found in northwestern Brazil and eastern Colombia. It is the only species within its genus.
The Recife broad-nosed bat, is a species of bat from South America. It is named for the city of Recife in Brazil, where it was first recorded by Oldfield Thomas in 1901.
The greater round-eared bat is a bat species found in northeastern and southern Brazil, northern Argentina, Paraguay and Bolivia. The species feeds on fruit as well as hunting small birds. Once caught, birds are taken to a shelter and consumed.
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 long-tailed armored tree-rat, is a spiny rat species from South America. It is found in Brazil, with a population in Ecuador which is referable either to this species or to Makalata didelphoides. Initially considered a large form of the latter species, it actually represents a distinct species as supported by morphological and molecular characters.
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.
Makalata is a genus of rodents in the family Echimyidae.
The dusky spiny tree rat is a species of rodent in the family Echimyidae. It is endemic to Brazil.
The small red brocket is a small species of deer in the family Cervidae. It is endemic to Atlantic Forest in Paraná, Santa Catarina and São Paulo in southeastern Brazil. This species, which only was scientifically described in 1996, is threatened by habitat loss. Though its size and structure most resemble that of the pygmy brocket, its coloration is very similar to that of the red brocket. It resembles hybrids between these two species even more closely, but differs from both, and their hybrids, in karyotype.
The little black serotine is a species of insectivorous vesper bat. It is found in Colombia, Ecuador, Peru, Venezuela, Bolivia and Brazil at elevations from 100 to 3300 m.
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.
