List of mammals of Brazil

Brazil has the largest mammal diversity in the world, with more than 600 described species and more likely to be discovered. According to the International Union for Conservation of Nature, 66 of these species are endangered, and 40% of the threatened taxa belong to the primate group.

658 species are listed.

The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature:

Some species were assessed using an earlier set of criteria. Species assessed using this system have the following instead of least concern categories:

Order: Didelphimorphia

 * Family: Caluromyidae
 * Genus: Caluromys
 * Brown-eared woolly opossum, C. lanatus
 * Bare-tailed woolly opossum, C. philander
 * Family: Didelphidae
 * Genus: Caluromysiops
 * Black-shouldered opossum, Caluromysiops irrupta
 * Genus: Glironia
 * Bushy-tailed opossum, Glironia venusta
 * Genus: Chironectes
 * Water opossum, Chironectes minimus
 * Genus: Didelphis
 * White-eared opossum, Didelphis albiventris
 * Big-eared opossum, Didelphis aurita
 * Guianan white-eared opossum, Didelphis imperfecta
 * Genus: Lutreolina
 * Big lutrine opossum, Lutreolina crassicaudata
 * Genus: Philander
 * Anderson's four-eyed opossum, Philander andersoni
 * Southeastern four-eyed opossum, Philander frenatus
 * McIlhenny's four-eyed opossum, Philander mcilhennyi
 * Gray four-eyed opossum, Philander opossum
 * Genus: Gracilinanus
 * Agile gracile opossum, Gracilinanus agilis
 * Emilia's gracile opossum, Gracilinanus emiliae
 * Brazilian gracile opossum, Gracilinanus microtarsus
 * Genus: Marmosa
 * White-bellied woolly mouse opossum, Marmosa constantiae
 * Woolly mouse opossum, Marmosa demerarae
 * Rufous mouse opossum, Marmosa lepida
 * Linnaeus's mouse opossum, Marmosa murina
 * Tate's woolly mouse opossum, Marmosa paraguayana
 * Bare-tailed woolly mouse opossum, Marmosa regina
 * Genus: Marmosops
 * Tschudi's slender opossum, Marmosops impavidus
 * Gray slender opossum, Marmosops incanus
 * Neblina slender opossum, Marmosops neblina
 * White-bellied slender mouse opossum, Marmosops noctivagus
 * Delicate slender opossum, Marmosops parvidens
 * Brazilian slender opossum, Marmosops paulensis
 * Pinheiro's slender opossum, Marmosops pinheiroi
 * Genus: Metachirus
 * Brown four-eyed opossum, Metachirus nudicaudatus
 * Genus: Monodelphis
 * Northern three-striped opossum, Monodelphis americana
 * Northern red-sided opossum, Monodelphis brevicaudata
 * Yellow-sided opossum, Monodelphis dimidiata
 * Gray short-tailed opossum, Monodelphis domestica [[Image:Monodelphis domestica.jpg|thumb|[[Gray short-tailed opossum]]]]
 * Emilia's short-tailed opossum, Monodelphis emiliae [[Image:Bradypus.jpg|thumb|[[Brown-throated sloth]]]]
 * Ihering's three-striped opossum, Monodelphis iheringi
 * Pygmy short-tailed opossum, Monodelphis kunsi
 * Marajó short-tailed opossum, Monodelphis maraxina
 * Chestnut-striped opossum, Monodelphis rubida
 * Long-nosed short-tailed opossum, Monodelphis scalops
 * Southern red-sided opossum, Monodelphis sorex
 * Southern three-striped opossum, Monodelphis theresa
 * Red three-striped opossum, Monodelphis umbristriata
 * One-striped opossum, Monodelphis unistriata
 * Genus: Thylamys
 * Dwarf fat-tailed mouse opossum, Thylamys velutinus

Order: Pilosa

 * Family: Bradypodidae
 * Genus: Bradypus
 * Maned sloth, Bradypus torquatus
 * Pale-throated sloth, Bradypus tridactylus
 * Brown-throated sloth, Bradypus variegatus
 * Family: Choloepodidae
 * Genus: Choloepus
 * Linnaeus's two-toed sloth, Choloepus didactylus
 * Hoffmann's two-toed sloth, Choloepus hoffmanni
 * Family Cyclopedidae
 * Genus: Cyclopes
 * Silky anteater, Cyclopes didactylus
 * Family: Myrmecophagidae
 * Genus: Myrmecophaga
 * Giant anteater, Myrmecophaga tridactyla
 * Genus: Tamandua
 * Southern tamandua, Tamandua tetradactyla

Order: Cingulata

 * Family: Dasypodidae
 * Genus: Cabassous
 * Greater naked-tailed armadillo, Cabassous tatouay
 * Southern naked-tailed armadillo, Cabassous unicinctus
 * Genus: Dasypus
 * Southern long-nosed armadillo, Dasypus hybridus
 * Great long-nosed armadillo, Dasypus kappleri
 * Nine-banded armadillo, Dasypus novemcinctus
 * Seven-banded armadillo, Dasypus septemcinctus
 * Genus: Euphractus
 * Six-banded armadillo, Euphractus sexcinctus
 * Genus: Priodontes
 * Giant armadillo, Priodontes maximus
 * Genus: Tolypeutes
 * Southern three-banded armadillo, Tolypeutes matacus
 * Brazilian three-banded armadillo, Tolypeutes tricinctus

Order: Chiroptera

 * Family: Emballonuridae
 * Genus: Centronycteris
 * Shaggy bat, Centronycteris maximiliani LR/lc
 * Genus: Cormura
 * Chestnut sac-winged bat, Cormura brevirostris
 * Genus: Cyttarops
 * Short-eared bat, Cyttarops alecto
 * Genus: Diclidurus
 * Northern ghost bat, Diclidurus albus LR/lc
 * Greater ghost bat, Diclidurus ingens
 * Isabelle's ghost bat, Diclidurus isabella
 * Lesser ghost bat, Diclidurus scutatus
 * Genus: Peropteryx
 * Greater dog-like bat, Peropteryx kappleri LR/lc
 * White-winged dog-like bat, Peropteryx leucoptera
 * Lesser dog-like bat, Peropteryx macrotis LR/lc
 * Pale-winged dog-like bat, Peropteryx pallidoptera
 * Genus: Rhynchonycteris
 * Proboscis bat, Rhynchonycteris naso LR/lc
 * Genus: Saccopteryx
 * Greater sac-winged bat, Saccopteryx bilineata
 * Frosted sac-winged bat, Saccopteryx canescens
 * Amazonian sac-winged bat, Saccopteryx gymnura
 * Lesser sac-winged bat, Saccopteryx leptura
 * Family: Phyllostomidae
 * Subfamily: Desmodontinae
 * Genus: Desmodus
 * Common vampire bat, Desmodus rotundus [[Image:Desmodus rotundus A Catenazzi.jpg|thumb|[[Vampire bat]]]]
 * Genus: Diaemus
 * White-winged vampire bat, Diaemus youngii
 * Genus: Diphylla
 * Hairy-legged vampire bat, Diphylla ecaudata
 * Subfamily: Glossophaginae
 * Genus: Anoura
 * Tailed tailless bat, Anoura caudifer
 * Geoffroy's tailless bat, Anoura geoffroyi
 * Genus: Choeroniscus
 * Minor long-nosed long-tongued bat, Choeroniscus minor
 * Genus: Glossophaga
 * Commissaris's long-tongued bat, Glossophaga commissarisi LR/lc
 * Miller's long-tongued bat, Glossophaga longirostris
 * Pallas's long-tongued bat, Glossophaga soricina LR/lc
 * Genus: Hsunycteris
 * Thomas's nectar bat, Hsunycteris thomasi
 * Genus: Lichonycteris
 * Dark long-tongued bat, Lichonycteris degener LR/lc
 * Genus: Lionycteris
 * Chestnut long-tongued bat, Lionycteris spurrelli
 * Genus: Lonchophylla
 * Bokermann's nectar bat, Lonchophylla bokermanni
 * Dekeyser's nectar bat, Lonchophylla dekeyseri
 * Lonchophylla inexpectata, Lonchophylla inexpectata
 * Godman's nectar bat, Lonchophylla mordax
 * Peracchi's nectar bat, Lonchophylla peracchii
 * Genus: Scleronycteris
 * Ega long-tongued bat, Scleronycteris ega
 * Subfamily: Carolliinae
 * Genus: Rhinophylla
 * Fischer's little fruit bat, Rhinophylla fischerae
 * Dwarf little fruit bat, Rhinophylla pumilio
 * Genus: Carollia
 * Benkeith's short-tailed bat, Carollia benkeithi
 * Silky short-tailed bat, Carollia brevicauda LR/lc
 * Seba's short-tailed bat, Carollia perspicillata LR/lc
 * Little white-shouldered bat, Ametrida centurio
 * Subfamily: Phyllostominae
 * Genus: Chrotopterus
 * Big-eared woolly bat, Chrotopterus auritus LR/lc
 * Genus: Garnderycteris
 * Striped hairy-nosed bat, Gardnerycteris crenulatum LR/lc
 * Genus: Glyphonycteris
 * Davies's big-eared bat, Glyphonycteris daviesi
 * Tricolored big-eared bat, Glyphonycteris sylvestris
 * Genus: Lampronycteris
 * Yellow-throated big-eared bat, Lampronycteris brachyotis
 * Genus: Lonchorhina
 * Tomes's sword-nosed bat, Lonchorhina aurita LR/lc
 * Northern sword-nosed bat, Lonchorhina inusitata
 * Genus: Lophostoma
 * Pygmy round-eared bat, Lophostoma brasiliense LR/lc
 * Carriker's round-eared bat, Lophostoma carrikeri
 * Schultz's round-eared bat, Lophostoma schulzi
 * White-throated round-eared bat, Lophostoma silvicola
 * Genus: Macrophyllum
 * Long-legged bat, Macrophyllum macrophyllum
 * Genus: Micronycteris
 * Brosset's big-eared bat, Micronycteris brosseti
 * Hairy big-eared bat, Micronycteris hirsuta
 * Little big-eared bat, Micronycteris megalotis
 * Common big-eared bat, Micronycteris microtis
 * White-bellied big-eared bat, Micronycteris minuta
 * Sanborn's big-eared bat, Micronycteris sanborni
 * Schmidts's big-eared bat, Micronycteris schmidtorum LR/lc
 * Genus: Mimon
 * Golden bat, Mimon bennettii
 * Genus: Neonycteris
 * Least big-eared bat, Neonycteris pusilla
 * Genus: Phylloderma
 * Pale-faced bat, Phylloderma stenops LR/lc
 * Genus: Phyllostomus
 * Pale spear-nosed bat, Phyllostomus discolor
 * Lesser spear-nosed bat, Phyllostomus elongatus
 * Greater spear-nosed bat, Phyllostomus hastatus
 * Guianan spear-nosed bat, Phyllostomus latifolius
 * Genus: Tonatia
 * Greater round-eared bat, Tonatia bidens
 * Stripe-headed round-eared bat, Tonatia saurophila LR/lc
 * Genus: Trachops
 * Fringe-lipped bat, Trachops cirrhosus
 * Genus: Trinycteris
 * Niceforo's big-eared bat, Trinycteris nicefori
 * Genus: Vampyrum
 * Spectral bat, Vampyrum spectrum
 * Subfamily: Stenodermatinae
 * Genus: Artibeus
 * Brown fruit-eating bat, Artibeus concolor
 * Fringed fruit-eating bat, Artibeus fimbriatus
 * Great fruit-eating bat, Artibeus lituratus
 * Dark fruit-eating bat, Artibeus obscurus
 * Flat-faced fruit-eating bat, Artibeus planirostris LR/lc
 * Genus: Chiroderma
 * Brazilian big-eyed bat, Chiroderma doriae
 * Salvin's big-eyed bat, Chiroderma salvini LR/lc
 * Little big-eyed bat, Chiroderma trinitatum
 * Hairy big-eyed bat, Chiroderma villosum LR/lc
 * Vizotto's big-eyed bat, Chiroderma vizottoi LR/lc
 * Genus: Dermanura
 * Andersen's fruit-eating bat, Dermanura anderseni
 * Bogota fruit-eating bat, Dermanura bogotensis
 * Gervais's fruit-eating bat, Dermanura cinerea
 * Gnome fruit-eating bat, Artibeus gnoma
 * Genus: Mesophylla
 * MacConnell's bat, Mesophylla macconnelli
 * Genus: Platyrrhinus
 * Slender broad-nosed bat, Platyrrhinus angustirostris
 * Eldorado broad-nosed bat, Platyrrhinus aurarius
 * Short-headed broad-nosed bat, Platyrrhinus brachycephalus
 * Brown-bellied broad-nosed bat, Platyrrhinus fusciventris
 * Heller's broad-nosed bat, Platyrrhinus helleri
 * Incan broad-nosed bat, Platyrrhinus incarum
 * Buffy broad-nosed bat, Platyrrhinus infuscus
 * White-lined broad-nosed bat, Platyrrhinus lineatus
 * Recife broad-nosed bat, Platyrrhinus recifinus
 * Genus: Pygoderma
 * Ipanema bat, Pygoderma bilabiatum
 * Genus: Sphaeronycteris
 * Visored bat, Sphaeronycteris toxophyllum
 * Genus: Sturnira
 * Little yellow-shouldered bat, Sturnira lilium LR/lc
 * Greater yellow-shouldered bat, Sturnira magna
 * Tilda's yellow-shouldered bat, Sturnira tildae
 * Genus: Uroderma
 * Tent-making bat, Uroderma bilobatum LR/lc
 * Brown tent-making bat, Uroderma magnirostrum LR/lc
 * Genus: Vampyressa
 * Southern little yellow-eared bat, Vampyressa pusilla
 * Northern little yellow-eared bat, Vampyressa thyone
 * Genus: Vampyriscus
 * Bidentate yellow-eared bat, Vampyriscus bidens
 * Brock's yellow-eared bat, Vampyriscus brocki
 * Genus: Vampyrodes
 * Great stripe-faced bat, Vampyrodes caraccioli
 * Family: Mormoopidae
 * Genus: Pteronotus
 * Big naked-backed bat, Pteronotus gymnonotus LR/lc
 * Parnell's mustached bat, Pteronotus parnellii LR/lc
 * Wagner's mustached bat, Pteronotus personatus
 * Family: Noctilionidae
 * Genus: Noctilio
 * Lesser bulldog bat, Noctilio albiventris
 * Greater bulldog bat, Noctilio leporinus
 * Family: Furipteridae
 * Genus: Furipterus
 * Thumbless bat, Furipterus horrens
 * Family: Thyropteridae
 * Genus: Thyroptera
 * De Vivo's disk-winged bat, Thyroptera devivoi
 * Peters's disk-winged bat, Thyroptera discifera
 * LaVal's disk-winged bat, Thyroptera lavali
 * Spix's disk-winged bat, Thyroptera tricolor
 * Patricia's disk-winged bat, Thyroptera wynneae
 * Family: Natalidae
 * Genus: Natalus
 * Brazilian funnel-eared bat, Natalus macrourus
 * Family: Molossidae[[Image:Tadarida brasiliensis - Bahamas - Long Island (sic) - Cartwright Cave - March 2006 - 2.jpg|thumb|[[Brazilian free-tailed bat]]]]
 * Genus: Cynomops
 * Cinnamon dog-faced bat, Cynomops abrasus
 * Greenhall's dog-faced bat, Cynomops greenhalli
 * Miller's dog-faced bat, Cynomops milleri
 * Para dog-faced bat, Cynomops paranus
 * Southern dog-faced bat, Cynomops planirostris
 * Genus: Eumops
 * Black bonneted bat, Eumops auripendulus
 * Dwarf bonneted bat, Eumops bonariensis
 * Eumops delticus
 * Wagner's bonneted bat, Eumops glaucinus
 * Sanborn's bonneted bat, Eumops hansae
 * Guianan bonneted bat, Eumops maurus
 * Patagonian bonneted bat, Eumops patagonicus
 * Western bonneted bat, Eumops perotis
 * Colombian bonneted bat, Eumops trumbulli
 * Genus: Molossops
 * Rufous dog-faced bat, Molossops neglectus
 * Dwarf dog-faced bat, Molossops temminckii
 * Genus: Molossus
 * Aztec mastiff bat, Molossus aztecus
 * Coiba mastiff bat, Molossus coibensis
 * Bonda mastiff bat, Molossus currentium
 * Velvety free-tailed bat, Molossus molossus
 * Miller's mastiff bat, Molossus pretiosus
 * Black mastiff bat, Molossus rufus
 * Genus: Neoplatymops
 * Mato Grosso dog-faced bat, Neoplatymops mattogrossensis
 * Genus: Nyctinomops
 * Peale's free-tailed bat, Nyctinomops aurispinosus
 * Broad-eared bat, Nyctinomops laticaudatus
 * Big free-tailed bat, Nyctinomops macrotis
 * Genus: Promops
 * Big crested mastiff bat, Promops centralis
 * Brown mastiff bat, Promops nasutus
 * Genus: Tadarida
 * Brazilian free-tailed bat, Tadarida brasiliensis
 * Family: Vespertilionidae
 * Genus: Eptesicus
 * Little black serotine, Eptesicu andinus
 * Brazilian brown bat, Eptesicus brasiliensis
 * Chiriquinan serotine, Eptesicus chiriquinus
 * Diminutive serotine, Eptesicus diminutus
 * Argentine brown bat, Eptesicus furinalis
 * Taddei serotine, Eptesicus taddeii
 * Genus: Histiotus
 * Strange big-eared brown bat, Histiotus alienus
 * Thomas's big-eared brown bat, Histiotus laephotis
 * Small big-eared brown bat, Histiotus montanus
 * Tropical big-eared brown bat, Histiotus velatus
 * Genus: Lasiurus
 * Desert red bat, Lasiurus blossevillii
 * Tacarcuna bat, Lasiurus castaneus
 * Hoary bat, Lasiurus cinereus
 * Hairy-tailed bat, Lasiurus ebenus
 * Southern yellow bat, Lasiurus ega
 * Big red bat, Lasiurus egregius
 * Saline red bat, Lasiurus salinae
 * Genus: Rhogeessa
 * Husson's yellow bat, Rhogeessa hussoni
 * Thomas's yellow bat, Rhogeessa io
 * Genus: Myotis
 * Silver-tipped myotis, Myotis albescens
 * Myotis dinellii
 * Izecksohn's myotis, Myotis izecksohni
 * LaVal's myotis, Myotis lavali
 * Yellowish myotis, Myotis levis
 * Black myotis, Myotis nigricans LR/lc
 * Riparian myotis, Myotis riparius
 * Red myotis, Myotis ruber
 * Velvety myotis, Myotis simus

Order: Primates

 * Family: Callitrichidae
 * Genus: Callimico
 * Goeldi's marmoset, Callimico goeldii
 * Genus: Callithrix
 * Buffy-tufted marmoset, Callithrix aurita
 * Buffy-headed marmoset, Callithrix flaviceps
 * White-headed marmoset, Callithrix geoffroyi
 * Common marmoset, Callithrix jacchus
 * Wied's marmoset, Callithrix kuhlii
 * Black-tufted marmoset, Callithrix penicillata
 * Genus: Cebuella
 * Pygmy marmoset, Cebuella pygmaea
 * Genus: Leontocebus
 * Cruz Lima's saddle-back tamarin, Leontocebus cruzlimai
 * Lesson's saddle-back tamarin, Leontocebus fuscus
 * Brown-mantled tamarin, Leontocebus fuscicollis
 * Black-mantled tamarin, Leontocebus nigricollis
 * Weddell's saddle-back tamarin, Leontocebus weddelli
 * Genus: Leontopithecus
 * Superagui lion tamarin, Leontopithecus caissara
 * Golden-headed lion tamarin, Leontopithecus chrysomelas
 * Black lion tamarin, Leontopithecus chrysopygus
 * Golden lion tamarin, Leontopithecus rosalia
 * Genus: Mico
 * Rio Acari marmoset, Mico acariensis
 * Gold-and-white marmoset, Mico chrysoleucus
 * Emilia's marmoset, Mico emiliae
 * Santarem marmoset, Mico humeralifer
 * Roosmalens' dwarf marmoset, Mico humilis
 * Hershkovitz's marmoset, Mico intermedia
 * White marmoset, Mico leucippe
 * Manicore marmoset, Mico manicorensis
 * Marca's marmoset, Mico marcai
 * Maués marmoset, Mico mauesi
 * Munduruku marmoset, Mico munduruku
 * Black-tailed marmoset, Mico melanurus
 * Black-headed marmoset, Mico nigriceps
 * Sateré marmoset, Mico saterei
 * Genus: Saguinus
 * Pied tamarin, Saguinus bicolor
 * Emperor tamarin, Saguinus imperator
 * Mottle-faced tamarin, Saguinus inustus
 * White-lipped tamarin, Saguinus labiatus
 * Martins's tamarin, Saguinus martinsi
 * Red-handed tamarin, Saguinus midas
 * Moustached tamarin, Saguinus mystax
 * Black tamarin, Saguinus niger
 * Family: Cebidae
 * Genus: Cebus
 * Humboldt's white-fronted capuchin, Cebus albifrons
 * Kaapori capuchin, Cebus kaapori
 * Spix's white-fronted capuchin, Cebus unicolor
 * Wedge-capped capuchin, Cebus olivaceus
 * Marañón white-fronted capuchin, Cebus yuracus
 * Genus: Sapajus
 * Tufted capuchin, Sapajus apella
 * Black-striped capuchin, Sapajus libidinosus
 * Large-headed capuchin, Sapajus macrocephalus
 * Black capuchin, Sapajus nigritus
 * Crested capuchin, Sapajus robustus
 * Golden-bellied capuchin, Sapajus xanthosternos
 * Genus: Saimiri
 * Black-capped squirrel monkey, Saimiri boliviensis
 * Collins' squirrel monkey, Saimiri collinsi
 * Humboldt's squirrel monkey, Saimiri cassiquiarensis
 * Guianan squirrel monkey, Saimiri sciureus
 * Bare-eared squirrel monkey, Saimiri ustus
 * Black squirrel monkey, Saimiri vanzolinii
 * Family: Aotidae
 * Genus: Aotus
 * Feline night monkey, Aotus azarae
 * Nancy Ma's night monkey, Aotus nancymaae
 * Black-headed night monkey, Aotus nigriceps
 * Three-striped night monkey, Aotus trivirgatus
 * Spix's night monkey, Aotus vociferans
 * Family: Pitheciidae
 * Genus: Cacajao
 * Bald uakari, Cacajao calvus
 * Black-headed uakari, Cacajao melanocephalus
 * Aracá uakari, Cacajao ayresi
 * Neblina uakari, Cacajao hosomi
 * Genus: Callicebus
 * Baptista Lake titi, Callicebus baptista
 * Barbara Brown's titi, Callicebus barbarabrownae
 * Prince Bernhard's titi, Callicebus bernhardi
 * Brown titi, Callicebus brunneus
 * Chestnut-bellied titi, Callicebus brunneus
 * Ashy black titi, Callicebus cinerascens
 * Coimbra Filho's titi, Callicebus coimbrai
 * Coppery titi, Callicebus cupreus
 * White-eared titi, Callicebus donacophilus
 * Hershkovitz's titi, Callicebus dubius
 * Hoffmanns's titi, Callicebus hoffmannsi
 * Lucifer titi, Callicebus lucifer
 * Black titi, Callicebus lugens
 * Coastal black-handed titi, Callicebus melanochir
 * Red-bellied titi, Callicebus moloch
 * Black-fronted titi, Callicebus nigrifrons
 * White-coated titi, Callicebus pallescens
 * Atlantic titi, Callicebus personatus
 * Rio Purus titi, Callicebus purinus
 * Red-headed titi, Callicebus regulus
 * Stephen Nash's titi, Callicebus stephennashi
 * Collared titi, Callicebus torquatus
 * Genus: Chiropotes
 * White-nosed saki, Chiropotes albinasus
 * Red-backed bearded saki, Chiropotes chiropotes
 * Brown-backed bearded saki, Chiropotes israelita
 * Black bearded saki, Chiropotes satanas
 * Uta Hick's bearded saki, Chiropotes utahicki
 * Genus: Pithecia
 * White-footed saki, Pithecia albicans
 * Rio Tapajós saki, Pithecia irrorata
 * Monk saki, Pithecia monachus
 * White-faced saki, Pithecia pithecia
 * Family: Atelidae
 * Genus: Alouatta
 * Red-handed howler, Alouatta belzebul
 * Black howler, Alouatta caraya
 * Brown howler, Alouatta guariba
 * Amazon black howler, Alouatta nigerrima
 * Venezuelan red howler, Alouatta seniculus
 * Maranhão red-handed howler, Alouatta ululata
 * Genus: Ateles
 * White-fronted spider monkey, Ateles belzebuth
 * Peruvian spider monkey, Ateles chamek
 * White-cheeked spider monkey, Ateles marginatus
 * Red-faced spider monkey, Ateles paniscus
 * Genus: Brachyteles
 * Southern muriqui, Brachyteles arachnoides
 * Northern muriqui, Brachyteles hypoxanthus
 * Genus: Lagothrix
 * Gray woolly monkey, Lagothrix cana
 * Brown woolly monkey, Lagothrix lagothricha
 * Silvery woolly monkey, Lagothrix poeppigii

Canidae - dogs, foxes, wolves

 * Genus: Atelocynus
 * Short-eared dog, A. microtis
 * Genus: Cerdocyon
 * Crab-eating fox, C. thous
 * Genus: Chrysocyon
 * Maned wolf, C. brachyurus
 * Genus: Dusicyon
 * Dusicyon avus
 * Genus: Lycalopex
 * Pampas fox, L. gymnocercus
 * Hoary fox, L. vetulus
 * Genus: Speothos
 * Bush dog, S. venaticus

Felidae - cats

 * Genus: Leopardus
 * Pampas cat L. colocolo
 * Geoffroy's cat L. geoffroyi
 * Ocelot L. pardalis
 * Oncilla L. tigrinus
 * Margay L. wiedii
 * Genus: Herpailurus
 * Jaguarundi, H. yagouaroundi
 * Genus: Puma
 * Cougar, P. concolor
 * Genus: Panthera
 * Jaguar, P. onca

Mustelidae - otters, weasels and allies

 * Tayra, Eira barbara
 * Lesser grison, Galictis cuja
 * Greater grison, Galictis vittata
 * Neotropical river otter, Lontra longicaudis
 * Amazon weasel, Neogale africana
 * Long-tailed weasel, Neogale frenata
 * Giant otter, Pteronura brasiliensis

Mephitidae - skunks

 * Molina's hog-nosed skunk, Conepatus chinga
 * Striped hog-nosed skunk, Conepatus semistriatus

Otariidae - eared seals

 * South American fur seal, Arctocephalus australis
 * Subantarctic fur seal, Arctocephalus tropicalis
 * South American sea lion, Otaria flavescens

Phocidae - earless seals

 * Southern elephant seal, Mirounga leonina

Procyonidae - raccoons, coatis, olingos and allies

 * Eastern lowland olingo, Bassaricyon beddardi
 * South American coati, Nasua nasua
 * Kinkajou, Potos flavus
 * Crab-eating raccoon, Procyon cancrivorus

Balaenidae - right whales

 * Southern right whale, Eubalaena australis

Balaenopteridae - rorquals

 * Common minke whale, Balaenoptera acutorostrata
 * Antarctic minke whale, Balaenoptera bonaerensis
 * Sei whale, Balaenoptera borealis
 * Bryde's whale, Balaenoptera brydei
 * Omura's whale, Balaenoptera omurai (the second case found in Atlantic oceans)
 * Blue whale, Balaenoptera musculus
 * Fin whale, Balaenoptera physalus
 * Humpback whale, Megaptera novaeangliae

Delphinidae - dolphins

 * Long-beaked common dolphin, Delphinus capensis
 * Pygmy killer whale, Feresa attenuata
 * Short-finned pilot whale, Globicephala macrorhynchus
 * Long-finned pilot whale, Globicephala melas
 * Risso's dolphin, Grampus griseus
 * Fraser's dolphin, Lagenodelphis hosei
 * Southern right whale dolphin, Lissodelphis peronii
 * Killer whale, Orcinus orca
 * Melon-headed whale, Peponocephala electra
 * False killer whale, Pseudorca crassidens
 * Costero, Sotalia guianensis
 * Tucuxi, Sotalia fluviatilis
 * Pantropical spotted dolphin, Stenella attenuata
 * Clymene dolphin, Stenella clymene
 * Striped dolphin, Stenella coeruleoalba
 * Spinner dolphin, Stenella longirostris
 * Rough-toothed dolphin, Steno bredanensis
 * Common bottlenose dolphin, Tursiops truncatus

Phocoenidae - porpoises

 * Burmeister's porpoise, Phocoena spinipinnis
 * Spectacled porpoise, Phocoena dioptrica

Physeteridae

 * Sperm whale, Physeter macrocephalus

Iniidae - South American river dolphins

 * Amazon river dolphin, Inia geoffrensis
 * Araguaian river dolphin, Inia araguaiaensis

Pontoporiidae - La Plata dolphin

 * La Plata dolphin, Pontoporia blainvillei

Ziphiidae - beaked whales

 * Arnoux's beaked whale, Berardius arnuxii
 * Southern bottlenose whale, Hyperoodon planifrons
 * Blainville's beaked whale, Mesoplodon densirostris
 * Hector's beaked whale, Mesoplodon hectori
 * Cuvier's beaked whale, Ziphius cavirostris

Trichechidae - manatees

 * Amazonian manatee, Trichechus inunguis
 * West Indian manatee, Trichechus manatus
 * Dwarf manatee, Trichechus pygmaeus

Tapiridae - tapirs



 * Brazilian tapir, Tapirus terrestris
 * Kabomani tapir, Tapirus kabomani

Suidae - pigs

 * Feral hog, Sus scrofa (introduced species)

Tayassuidae - peccaries



 * Collared peccary, Dicotyles tajacu
 * Giant peccary, Pecari maximus
 * White-lipped peccary, Tayassu pecari

Cervidae - deer



 * Chital or axis deer, Axis axis (introduced species)
 * Marsh deer, Blastocerus dichotomus
 * Red brocket, Mazama americana
 * Gray brocket, Mazama gouazoubira
 * Pygmy brocket, Mazama nana
 * White-tailed deer, Odocoileus virginianus
 * Pampas deer, Ozotoceros bezoarticus

Sciuridae - squirrels

 * Amazon dwarf squirrel, Microsciurus flaviventer
 * Neotropical pygmy squirrel, Sciurillus pusillus
 * Brazilian squirrel, Sciurus aestuans
 * Yellow-throated squirrel, Sciurus gilvigularis
 * Bolivian squirrel, Sciurus ignitus
 * Northern Amazon red squirrel, Sciurus igniventris
 * Southern Amazon red squirrel, Sciurus spadiceus

Myocastoridae



 * Nutria, Myocastor coypus

Muridae - Old World rats and allies

 * Norway rat, Rattus norvegicus (introduced species)
 * Black rat, Rattus rattus (introduced species)
 * House mouse, Mus musculus (introduced species)

Cricetidae - New World rats and allies



 * Abrawayaomys chebezi
 * Ruschi's rat, Abrawayaomys ruschii
 * Azara's grass mouse, Akodon azarae
 * Cursor grass mouse, Akodon cursor
 * Lindbergh's grass mouse, Akodon lindberghi
 * Montane grass mouse, Akodon montensis
 * Caparaó grass mouse, Akodon mystax
 * Paraná grass mouse, Akodon paranaensis
 * Reig's grass mouse, Akodon reigi
 * Sao Paulo grass mouse, Akodon sanctipaulensis
 * Serra do Mar grass mouse, Akodon serrensis
 * Large-lipped crimson-nosed rat, Bibimys labiosus
 * Brazilian shrew mouse, Blarinomys breviceps
 * Gray-bellied brucie, Brucepattersonius griserufescens
 * Red-bellied brucie, Brucepattersonius igniventris
 * Ihering's hocicudo, Brucepattersonius iheringi
 * Soricine brucie, Brucepattersonius soricinus
 * Large vesper mouse, Calomys callosus
 * Calomys cerqueirai
 * Small vesper mouse, Calomys laucha
 * Delicate vesper mouse, Calomys tener
 * Tocantins vesper mouse, Calomys tocantinsi
 * Cerradomys langguthi
 * Cerradomys maracajuensis
 * Marinho's oryzomys, Cerradomys marinhus
 * Lindbergh's oryzomys, Cerradomys scotti
 * Terraced rice rat, Cerradomys subflavus
 * Cerradomys vivoi
 * Montane Atlantic Forest rat, Delomys collinus
 * Striped Atlantic Forest rat, Delomys dorsalis
 * Pallid Atlantic Forest rat, Delomys sublineatus
 * Drymoreomys albimaculatus
 * Emmons's rice rat, Euryoryzomys emmonsae
 * Buffy-sided oryzomys, Euryoryzomys lamia
 * MacConnell's rice rat, Euryoryzomys macconnelli
 * Elegant rice rat, Euryoryzomys nitidus
 * Russet rice rat, Euryoryzomys russatus
 * Gray leaf-eared mouse, Graomys griseoflavus
 * Web-footed marsh rat, Holochilus brasiliensis
 * Amazonian marsh rat, Holochilus sciureus
 * Atlantic Forest oryzomys, Hylaeamys laticeps
 * Azara's broad-headed oryzomys, Hylaeamys megacephalus
 * Sowbug rice rat, Hylaeamys oniscus
 * Western Amazonian oryzomys, Hylaeamys perenensis
 * Yungas rice rat, Hylaeamys yunganus
 * Juliomys anoblepas (extinct)
 * Juliomys ossitenuis
 * Lesser Wilfred's mouse, Juliomys pictipes
 * Cleft-headed juliomys, Juliomys rimofrons
 * Aracuaria Forest tree mouse, Juliomys ximenezi
 * Juscelinomys candango (extinct)
 * Juscelinomys talpinus
 * Molelike mouse, Juscelinomys vulpinus
 * Woolly giant rat, Kunsia tomentosus
 * Lund's amphibious rat, Lundomys molitor
 * Transitional colilargo, Microakodontomys transitorius
 * Dubost's bristly mouse, Neacomys dubosti
 * Guiana bristly mouse, Neacomys guianae
 * Jurua bristly mouse, Neacomys minutus
 * Musser's neacomys, Neacomys musseri
 * Paracou neacomys, Neacomys paracou
 * Common neacomys, Neacomys spinosus
 * Narrow-footed bristly mouse, Neacomys tenuipes
 * Hairy-tailed bolo mouse, Necromys lasiurus
 * Small-footed bristly mouse, Nectomys rattus
 * Scaly-footed water rat, Nectomys squamipes
 * Guianan arboreal rice rat, Oecomys auyantepui
 * Bicolored arboreal rice rat, Oecomys bicolor
 * Cleber's arboreal rice rat, Oecomys cleberi
 * Unicolored arboreal rice rat, Oecomys concolor
 * Mamore arboreal rice rat, Oecomys mamorae
 * Brazilian arboreal rice rat, Oecomys paricola
 * King arboreal rice rat, Oecomys rex
 * Robert's arboreal rice rat, Oecomys roberti
 * Trinidad arboreal rice rat, Oecomys trinitatis
 * Chacoan pygmy rice rat, Oligoryzomys chacoensis
 * Yellow pygmy rice rat, Oligoryzomys flavescens
 * Fulvous pygmy rice rat, Oligoryzomys fulvescens
 * Small-eared pygmy rice rat, Oligoryzomys microtis
 * Oligoryzomys moojeni
 * Black-footed pygmy rice rat, Oligoryzomys nigripes
 * Oligoryzomys rupestris
 * Straw-colored pygmy rice rat, Oligoryzomys stramineus
 * Amazonian hocicudo, Oxymycterus amazonicus
 * Angular hocicudo, Oxymycterus angularis
 * Caparaó hocicudo, Oxymycterus caparaoe
 * Hispid hocicudo, Oxymycterus hispidus
 * Long-nosed hocicudo, Oxymycterus nasutus
 * Robert's hocicudo, Oxymycterus roberti
 * Red hocicudo, Oxymycterus rufus
 * Rio de Janeiro arboreal rat, Phaenomys ferrugineus
 * Brazilian false rice rat, Pseudoryzomys simplex
 * Brazilian arboreal mouse, Rhagomys rufescens
 * Gardner's climbing mouse, Rhipidomys gardneri
 * White-footed climbing mouse, Rhipidomys leucodactylus
 * MacConnell's climbing mouse, Rhipidomys macconnelli
 * Atlantic Forest climbing mouse, Rhipidomys mastacalis
 * Splendid climbing mouse, Rhipidomys nitela
 * Waterhouse's swamp rat, Scapteromys tumidus
 * Ucayali spiny mouse, Scolomys ucayalensis
 * Alston's cotton rat, Sigmodon alstoni
 * Paraguayan rice rat, Sooretamys angouya
 * Cerrado mouse, Thalpomys cerradensis
 * Hairy-eared cerrado mouse, Thalpomys lasiotis
 * Blackish grass mouse, Thaptomys nigrita
 * Cerrado red-nosed mouse, Wiedomys cerradensis
 * Red-nosed mouse, Wiedomys pyrrhorhinos
 * Greater Wilfred's mouse, Wilfredomys oenax
 * Short-tailed cane rat, Zygodontomys brevicauda

Erethizontidae - New World porcupines

 * Bristle-spined porcupine, Chaetomys subspinosus
 * Bahia porcupine, Coendou insidiosus
 * Black-tailed hairy dwarf porcupine, Coendou melanurus
 * Black dwarf porcupine, Coendou nycthemera
 * Brazilian porcupine, Coendou prehensilis
 * Roosmalen's dwarf porcupine, Coendou roosmalenorum
 * Paraguaian hairy dwarf porcupine, Coendou spinosus

Dinomyidae

 * Pacarana, Dinomys branickii

Caviidae - guinea pigs and cavies



 * Brazilian guinea pig, Cavia aperea
 * Shiny guinea pig, Cavia fulgida
 * Santa Catarina's guinea pig, Cavia intermedia
 * Greater guinea pig, Cavia magna
 * Guinea pig, Cavia porcellus
 * Yellow-toothed cavy, Galea flavidens
 * Spix's yellow-toothed cavy, Galea spixii
 * Acrobatic cavy, Kerodon acrobata
 * Rock cavy, Kerodon rupestris

Hydrochaeridae



 * Capybara, Hydrochaeris hydrochaeris

Dasyproctidae - agoutis and acouchis

 * Azara's agouti, Dasyprocta azarae
 * Black agouti, Dasyprocta fuliginosa
 * Red-rumped agouti, Dasyprocta leporina
 * Black-rumped agouti, Dasyprocta prymnolopha
 * Central American agouti, Dasyprocta punctata
 * Red acouchi, Myoprocta acouchy
 * Green acouchi, Myoprocta pratti

Cuniculidae

 * Lowland paca, Cuniculus paca

Ctenomyidae - tuco-tucos

 * Brazilian tuco-tuco, Ctenomys brasiliensis
 * Flamarion's tuco-tuco, Ctenomys flammarioni
 * Tiny tuco-tuco, Ctenomys minutus
 * Natterer's tuco-tuco, Ctenomys nattereri
 * Rondon's tuco-tuco, Ctenomys rondoni
 * Collared tuco-tuco, Ctenomys torquatus

Echimyidae - spiny rats and allies

 * Painted tree-rat, Callistomys pictus
 * Owl's spiny rat, Carterodon sulcidens
 * Bishop's fossorial spiny rat, Clyomys bishopi
 * Broad-headed spiny rat, Clyomys laticeps
 * Bolivian bamboo rat, Dactylomys boliviensis
 * Amazon bamboo rat, Dactylomys dactylinus
 * White-faced spiny tree-rat, Echimys chrysurus
 * Giant tree-rat, Toromys grandis
 * Brandt's guiara, Euryzygomatomys guiara
 * Fischer's guiara, Euryzygomatomys spinosus
 * Yellow-crowned brush-tailed rat, Isothrix bistriata
 * Rio Negro brush-tailed rat, Isothrix negrensis
 * Plain brush-tailed rat, Isothrix pagurus
 * Atlantic bamboo rat, Kannabateomys amblyonyx
 * Tuft-tailed spiny tree-rat, Lonchothrix emiliae
 * Long-tailed armored tree-rat, Makalata macrura
 * Ferreira's spiny tree-rat, Mesomys hispidus
 * Tufted-tailed spiny tree-rat, Mesomys occultus
 * Pará spiny tree-rat, Mesomys stimulax
 * Golden Atlantic tree-rat, Phyllomys blainvilii
 * Orange-brown Atlantic tree-rat, Phyllomys brasiliensis
 * Drab Atlantic tree-rat, Phyllomys dasythrix
 * Kerr's Atlantic tree-rat, Phyllomys kerri
 * Pallid Atlantic tree-rat, Phyllomys lamarum
 * Lund's Atlantic tree-rat, Phyllomys lundi
 * Mantiqueira Atlantic tree-rat, Phyllomys mantiqueirensis
 * Long-furred Atlantic tree-rat, Phyllomys medius
 * Black-spined Atlantic tree-rat, Phyllomys nigrispinus
 * Rusty-sided Atlantic tree-rat, Phyllomys pattoni
 * Giant Atlantic tree-rat, Phyllomys thomasi
 * Short-furred Atlantic tree-rat, Phyllomys unicolor
 * Napo spiny rat, Proechimys quadruplicatus
 * Short-tailed spiny rat, Proechimys brevicauda
 * Guyenne spiny rat, Proechimys guyannensis
 * Cuvier's spiny rat, Proechimys cuvieri
 * Stiff-spine spiny rat, Proechimys echinothrix
 * Gardner's spiny rat, Proechimys gardneri
 * Goeldi's spiny rat, Proechimys goeldii
 * Guyanan spiny rat, Proechimys hoplomyoides
 * Kulina spiny rat, Proechimys kulinae
 * Long-tailed spiny rat, Proechimys longicaudatus
 * Mouse-tailed Atlantic spiny rat, Proechimys myosuros
 * Roberto's spiny rat, Proechimys roberti
 * Patton's spiny rat, Proechimys pattoni
 * Napo spiny rat, Proechimys quadruplicatus
 * Simon's spiny rat, Proechimys simonsi
 * Steere's spiny rat, Proechimys steerei
 * Common punaré, Thrichomys apereoides
 * White-spined Atlantic spiny rat, Trinomys albispinus
 * Soft-spined Atlantic spiny rat, Trinomys dimidiatus
 * Elias's Atlantic spiny rat, Trinomys eliasi
 * Gracile Atlantic spiny rat, Trinomys gratiosus
 * Ihering's Atlantic spiny rat, Trinomys iheringi
 * Dark-caped Atlantic spiny rat, Trinomys mirapitanga
 * Moojen's Atlantic spiny rat, Trinomys moojeni
 * Spiked Atlantic spiny rat, Trinomys paratus
 * Hairy Atlantic spiny rat, Trinomys setosus
 * Yonenaga's Atlantic spiny rat, Trinomys yonenagae

Leporidae - rabbits and hares



 * Common tapetí, Sylvilagus brasiliensis
 * Coastal tapetí, Sylvilagus tapetillus
 * European hare, Lepus europaeus (introduced species)