This list is based on my global mammalwatching checklist, available here.

At February 9 2025

OPOSSUMS (DIDELPHIDAE) (19/121)
Derby’s Woolly Opossum (Caluromys derbianus)
Brown-eared Woolly Opossum (C.lanatus) – endemic
Bare-tailed Woolly Opossum (C.philander) – endemic
Water Opossum (Chironectes minimus)
Brazilian White-eared Opossum (Didelphis albiventris) – endemic
Southern Black-eared Opossum (D.aurita) – endemic
Northern Black-eared Opossum (D.marsupialis)
Andean White-eared Opossum (D.pernigra) – endemic
Virginia Opossum (D.virginiana)
Common Four-eyed Opossum (Philander canus) – endemic
Dark Four-eyed Opossum (P.melanurus) – endemic
Pebas Four-eyed Opossum (P.pebas) – endemic
Northeastern Woolly Mouse Opossum (Marmosa demerarae) – endemic
Rufous Mouse Opossum (M.lepida) – endemic
Robinson’s Mouse Opossum (M.robinsoni)
Amazonian Red-sided Opossum (Monodelphis glirina) – endemic
Common Brown Four-eyed Opossum (Metachirus myosuros)
Agile Opossum (Gracilinanus agilis) – endemic
Chacoan Fat-tailed Opossum (Thylamys pusillus) – endemic
MONITOS DEL MONTE (MICROBIOTHERIIDAE) (1/2)
Southern Monito del Monte (Dromiciops gliroides) – endemic
SHORT-NOSED ARMADILLOS (CHLAMYPHORIDAE) (6/14)
Screaming Hairy Armadillo (Chaetophractus vellerosus) – endemic
Large Hairy Armadillo (C.villosus) – endemic
Six-banded Armadillo (Euphractus sexcinctus) – endemic
Amazon Naked-tailed Armadillo (Cabassous unicinctus) – endemic
Giant Armadillo (Priodontes maximus) – endemic
Southern Three-banded Armadillo (Tolypeutes matacus) – endemic
LONG-NOSED ARMADILLOS (DASYPODIDAE) (3/8)
Greater Long-nosed Armadillo (Dasypus kappleri) – endemic
Nine-banded Armadillo (D.novemcinctus)
Brazilian Lesser Long-nosed Armadillo (D.septemcinctus) – endemic
THREE-TOED SLOTHS (BRADYPODIDAE) (4/5)
Southern Maned Three-toed Sloth (Bradypus crinitus) – endemic
Pygmy Three-toed Sloth (B.pygmaeus) – endemic
Pale-throated Three-toed Sloth (B.tridactylus) – endemic
Brown-throated Three-toed Sloth (B.variegatus) – endemic
TWO-TOED SLOTHS (CHOLOEPODIDAE) (2/2)
Linnaeus’s Two-toed Sloth (Choloepus didactylus) – endemic
Hoffmann’s Two-toed Sloth (C.hoffmanni) – endemic
SILKY ANTEATERS (CYCLOPEDIDAE) (1/7)
Central American Silky Anteater (Cyclopes dorsalis)
ANTEATERS (MYRMECOPHAGIDAE) (3/3)
Giant Anteater (Myrmecophaga tridactyla) – endemic
Northern Tamandua (Tamandua mexicana)
Southern Tamandua (T.tetradactyla) – endemic
MANATEES (TRICHECHIDAE) (1/2)
Amazonian Manatee (Trichechus inunguis) – endemic
GREAT APES (HOMINIDAE) (1/0)
Human (Homo sapiens)
NIGHT MONKEYS (AOTIDAE) (9/11)
Azara’s Night Monkey (Aotus azarae) – endemic
Brumback’s Night Monkey (A.brumbacki) – endemic
Gray-legged Night Monkey (A.griseimembra) – endemic
Lemurine Night Monkey (A.lemurinus) – endemic
Andean Night Monkey (A.miconax) – endemic
Ma’s Night Monkey (A.nancymai) – endemic
Black-headed Night Monkey (A.nigriceps) – endemic
Spix’s Night Monkey (A.vociferans) – endemic
Panamanian Night Monkey (A.zonalis) – endemic
SPIDER, HOWLER, AND WOOLLY MONKEYS (ATELIDAE) (20/23)
Black-and-gold Howler (Alouatta caraya) – endemic
Spix’s Red-handed Howler (A.discolor) – endemic
Brown Howler (A.guariba) – endemic
Guianan Red Howler (A.macconnelli) – endemic
Amazon Black Howler (A.nigerrima) – endemic
Mantled Howler (A.palliata)
Central American Black Howler (A.pigra)
Bolivian Red Howler (A.sara) – endemic
Colombian Red Howler (A.seniculus) – endemic
White-bellied Spider Monkey (Ateles belzebuth) – endemic
Black Spider Monkey (A.chamek) – endemic
Brown-headed Spider Monkey (A.fusciceps) – endemic
Central American Spider Monkey (A.geoffroyi)
Variegated Spider Monkey (A.hybridus) – endemic
White-whiskered Spider Monkey (A.marginatus) – endemic
Red-faced Black Spider Monkey (A.paniscus) – endemic
Southern Muriqui (Brachyteles arachnoides) – endemic
Northern Muriqui (B.hypoxanthus) – endemic
Yellow-tailed Woolly Monkey (Lagothrix flavicauda) – endemic
Common Woolly Monkey (L.lagothricha) – endemic
MARMOSETS AND TAMARINS (CALLITRICHIDAE) (34/54)
Goeldi’s Monkey (Callimico goeldii) – endemic
Buffy-tufted-ear Marmoset (Callithrix aurita) – endemic
Buffy-headed Marmoset (C.flaviceps) – endemic
Geoffroy’s Tufted-ear Marmoset (C.geoffroyi) – endemic
Common Marmoset (C.jacchus) – endemic
Wied’s Marmoset (C.kuhlii) – endemic
Black-tufted-ear Marmoset (C.penicillata) – endemic
Northern Pygmy Marmoset (Cebuella pygmaea) – endemic
Black-faced Lion Tamarin (Leontopithecus caissara) – endemic
Golden-headed Lion Tamarin (L.chrysomelas) – endemic
Black Lion Tamarin (L.chrysopygus) – endemic
Golden Lion Tamarin (L.rosalia) – endemic
Golden-white Tassel-ear Marmoset (Mico chrysoleucos) – endemic
Santarém Marmoset (M.humeralifer) – endemic
Black-crowned Dwarf Marmoset (M.humilis) – endemic
Marca’s Marmoset (M.marcai) – endemic
Maués Marmoset (M.mauesi) – endemic
Black-tailed Marmoset (M.melanurus) – endemic
Sateré Marmoset (M.saterei) – endemic
Pied Bare-faced Tamarin (Saguinus bicolor) – endemic
Spix’s Saddle-back Tamarin (S.fuscicollis) – endemic
Lesson’s Saddle-back Tamarin (S.fuscus) – endemic
Geoffroy’s Tamarin (S.geoffroyi) – endemic
Illiger’s Saddle-back Tamarin (S.illigeri) – endemic
Mottled-face Tamarin (S.inustus) – endemic
Red-bellied Tamarin (S.labiatus) – endemic
White-footed Tamarin (S.leucopus) – endemic
Midas Tamarin (S.midas) – endemic
Spix’s Mustached Tamarin (S.mystax) – endemic
Black-mantled Tamarin (S.nigricollis) – endemic
Cotton-top Tamarin (S.oedipus) – endemic
Bearded Emperor Tamarin (S.subgrisescens) – endemic
Golden-mantled Saddle-back Tamarin (S.tripartitus) – endemic
Weddell’s Saddle-back Tamarin (S.weddelli) – endemic
CEBID MONKEYS (CEBIDAE) (14/19)
White-fronted Capuchin (Cebus albifrons) – endemic
White-faced Capuchin (C.capucinus) – endemic
Weeper Capuchin (C.olivaceus) – endemic
Brown Capuchin (Sapajus apella) – endemic
Hooded Capuchin (S.cay) – endemic
Black-horned Capuchin (S.nigritus) – endemic
Crested Capuchin (S.robustus) – endemic
Yellow-breasted Capuchin (S.xanthosternos) – endemic
Black-capped Squirrel Monkey (Saimiri boliviensis) – endemic
Humboldt’s Squirrel Monkey (S.cassiquiarensis) – endemic
Ecuadorian Squirrel Monkey (S.macrodon) – endemic
Central American Squirrel Monkey (S.oerstedii) – endemic
Guianan Squirrel Monkey (S.sciureus) – endemic
Golden-backed Squirrel Monkey (S.ustus) – endemic
SAKIS, TITIS, AND UAKARIS (PITHECIIDAE) (31/61)
Southern Bahian Titi (Callicebus melanochir) – endemic
Black-fronted Titi (C.nigrifrons) – endemic
Masked Titi (C.personatus) – endemic
Yellow-handed Titi (Cheracebus lucifer) – endemic
White-chested Titi (C.lugens) – endemic
Medem’s Titi (C.medemi) – endemic
Madidi Titi (Plecturocebus aureipalatii) – endemic
Lake Baptista Titi (P.baptista) – endemic
Prince Bernhard’s Titi (P.bernhardi) – endemic
Caqueta Titi (P.caquetensis) – endemic
Ashy Titi (P.cinerascens) – endemic
Coppery Titi (P.cupreus) – endemic
Red-crowned Titi (P.discolor) – endemic
White-eared Titi (P.donacophilus) – endemic
Hoffmanns’s Titi (P.hoffmannsi) – endemic
Rio Beni Titi (P.modestus) – endemic
Red-bellied Titi (P.moloch) – endemic
San Martin Titi (P.oenanthe) – endemic
Olallas’ Titi (P.olallae) – endemic
Ornate Titi (P.ornatus) – endemic
Pale Titi (P.pallescens) – endemic
Toppin’s Titi (P.toppini) – endemic
Golden-brown Uacari (Cacajao melanocephalus) – endemic
Ucayali Bald Uacari (C.ucayalii) – endemic
Red-nosed Bearded Saki (Chiropotes albinasus) – endemic
Guianan Bearded Saki (C.sagulatus) – endemic
Golden-faced Saki (Pithecia chrysocephala) – endemic
Gray’s Bald-faced Saki (P.irrorata) – endemic
Monk Saki (P.monachus) – endemic
Napo Saki (P.napensis) – endemic
White-faced Saki (P.pithecia) – endemic
HARES AND RABBITS (LEPORIDAE) (6/21)
European Hare (Lepus europaeus) – introduced
European Rabbit (Oryctolagus cuniculus) – introduced
Andean Tapeti (Sylvilagus andinus) – endemic
Common Tapeti (S.brasiliensis) – endemic
Dice’s Cottontail (S.dicei) – endemic
Central American Tapeti (S.gabbi)
CAVIES (CAVIIDAE) (7/24)
Brazilian Guinea Pig (Cavia aperea) – endemic
Highland Yellow-toothed Cavy (Galea musteloides) – endemic
Southern Mountain Cavy (Microcavia australis) – endemic
Patagonian Mara (Dolichotis patagonum) – endemic
Chacoan Mara (D.salinicola) – endemic
Greater Capybara (Hydrochoerus hydrochaeris) – endemic
Lesser Capybara (H.isthmius) – endemic
PACAS (CUNICULIDAE) (2/2)
Lowland Paca (Cuniculus paca)
Mountain Paca (C.taczanowskii) – endemic
AGOUTIS AND ACOUCHIS (DASYPROCTIDAE) (6/14)
Azara’s Agouti (Dasyprocta azarae) – endemic
Coiban Agouti (D.coibae) – endemic
Black Agouti (D.fuliginosa) – endemic
Common Red-rumped Agouti (D.leporina) – endemic
Central American Agouti (D.punctata)
Brown Agouti (D.variegata) – endemic
CHINCHILLAS AND VISCACHAS (CHINCHILLIDAE) (3/6)
Chilean Chinchilla (Chinchilla lanigera) – endemic
Common Mountain Viscacha (Lagidium viscacia) – endemic
Common Plains Viscacha (Lagostomus maximus) – endemic
NEW WORLD PORCUPINES (ERETHIZONTIDAE) (6/17)
Bicolor-spined Porcupine (Coendou bicolor) – endemic
Amazonian Long-tailed Porcupine (C.longicaudatus) – endemic
Black-tailed Porcupine (C.melanurus) – endemic
Mexican Hairy Porcupine (C.mexicanus)
Quichua Porcupine (C.quichua) – endemic
Stump-tailed Porcupine (C.rufescens) – endemic
CHINCHILLA RATS (ABROCOMIDAE) (1/10)
Bennett’s Chinchilla Rat (Abrocoma bennettii) – endemic
TUCO-TUCOS (CTENOMYIDAE) (3/68)
Dune Tuco-tuco (Ctenomys australis) – endemic
Andean Tuco-tuco (C.opimus) – endemic
Talas Tuco-tuco (C.talarum) – endemic
SPINY RATS AND  HUTIAS (ECHIMYIDAE) (12/90)
Amazon Bamboo Rat (Dactylomys dactylinus) – endemic
Colombian Rufous Tree-rat (Diplomys caniceps) – endemic
Central American Rufous Tree-rat (D.labilis) – endemic
Red-nosed Armored Tree-rat (Makalata didelphoides) – endemic
Ferreira’s Spiny Tree-rat (Mesomys hispidus) – endemic
Black Toro (Toromys grandis) – endemic
Armored Rat (Hoplomys gymnurus) – endemic
Coypu (Myocastor coypus) – endemic
Short-tailed Spiny-rat (Proechimys brevicauda) – endemic
O’Connell’s Spiny-rat (P.oconnelli) – endemic
Tomes’s Spiny-rat (P.semispinosus) – endemic
Lagoa Santa Punare (Thrichomys apereoides) – endemic
OCTODONTS AND DEGUS (OCTODONTIDAE) (2/15)
Common Degu (Octodon degus) – endemic
Coruro (Spalacopus cyanus) – endemic
SQUIRRELS (SCIURIDAE) (16/31)
Neotropical Pygmy Squirrel (Sciurillus pusillus) – endemic
Central American Dwarf Squirrel (Microsciurus alfari) – endemic
Amazon Dwarf Squirrel (M.flaviventer) – endemic
Santander Dwarf Squirrel (M.santanderensis) – endemic
Guianan Squirrel (Sciurus aestuans) – endemic
Brazilian Squirrel (S.brasiliensis) – endemic
Deppe’s Squirrel (S.deppei)
Red-tailed Squirrel (S.granatensis) – endemic
Bolivian Squirrel (S.ignitus) – endemic
Northern Amazon Red Squirrel (S.igniventris) – endemic
Andean Squirrel (S.pucheranii) – endemic
Richmond’s Squirrel (S.richmondi) – endemic
Southern Amazon Red Squirrel (S.spadiceus) – endemic
Guayaquil Squirrel (S.stramineus) – endemic
Variegated Squirrel (S.variegatoides)
Bangs’s Mountain Squirrel (Syntheosciurus brochus) – endemic
KANGAROO RATS AND POCKET MICE (HETEROMYIDAE) (3/14)
Desmarest’s Spiny Pocket Mouse (Heteromys desmarestianus)
Mountain Spiny Pocket Mouse (H.oresterus) – endemic
Salvin’s Spiny Pocket Mouse (H.salvini)
HAMSTERS, VOLES, LEMMINGS, AND ALLIES (CRICETIDAE) (42/520)
Short-tailed Singing Mouse (Scotinomys teguina)
Long-tailed Singing Mouse (S.xerampelinus) – endemic
Nicaraguan Deermouse (Peromyscus nicaraguae) – endemic
Talamancan Deermouse (P.nudipes) – endemic
Short-nosed Harvest Mouse (Reithrodontomys brevirostris) – endemic
Talamancan Harvest Mouse (R.creper) – endemic
Chiriquian Harvest Mouse (R.garichensis) – endemic
Slender Harvest Mouse (R.gracilis)
Andean Soft-haired Mouse (Abrothrix andina) – endemic
Hairy Soft-haired Mouse (A.hirta) – endemic
Olive Soft-haired Mouse (A.olivacea) – endemic
Sanborn’s Soft-haired Mouse (A.sanborni) – endemic
Yungas Grass Mouse (Akodon aerosus) – endemic
White-bellied Grass Mouse (A.albiventer) – endemic
Azara’s Grass Mouse (A.azarae) – endemic
Kemp’s Grass Mouse (Deltamys kempi) – endemic
Red Hocicudo (Oxymycterus rufus) – endemic
Elegant Rice Rat (Euryoryzomys nitidus) – endemic
Alfaro’s Rice Rat (Handleyomys alfaroi)
Western Amazonian Rice Rat (Hylaeamys perenensis) – endemic
Yungas Rice Rat (H.yunganus) – endemic
Black-and-Yellow Rice Rat (Melanomys chrysomelas) – endemic
White-throated Rice Rat (Nephelomys albigularis) – endemic
Boquete Rice Rat (N.devius) – endemic
Gray-bellied Rice Rat (N.moerex) – endemic
White-bellied Arboreal Rice Rat (Oecomys bicolor) – endemic
Foothill Arboreal Rice Rat (O.superans) – endemic
Tschudi’s Pygmy Rice Rat (Oligoryzomys destructor) – endemic
Yellow Pygmy Rice Rat (O.flavescens) (†) – endemic
Black-footed Pygmy Rice Rat (O.nigripes) – endemic
Harris’s Rice Rat (Tanyuromys aphrastus) – endemic
Long-whiskered Rice Rat (Transandinomys bolivaris) – endemic
Crafty Vesper Mouse (Calomys callidus) – endemic
Large Vesper Mouse (C.callosus) – endemic
Small Vesper Mouse (C.laucha) – endemic
Drylands Vesper Mouse (C. musculinus) – endemic
Chaco Pericote (Graomys chacoensis) – endemic
Common Pericote (G.griseoflavus) – endemic
Yellow-rumped Leaf-eared Mouse (Phyllotis xanthopygus) – endemic
Peruvian Cotton Rat (Sigmodon peruanus) – endemic
Gardner’s Climbing Rat (Rhipidomys gardneri) – endemic
White-footed Climbing Rat (Rhipidomys leucodactylus) – endemic
Splendid Climbing Rat (R.nitela) – endemic
Strong-tailed Oldfield Mouse (Thomasomys ischyrus) – endemic
Taczanowski’s Oldfield Mouse (T.taczanowskii) (?) – endemic
Sumichrast’s Vesper Rat (Nyctomys sumichrasti)
OLD WORLD MICE AND RATS (MURIDAE) (2/4)
House Mouse (Mus musculus) – introduced
Roof Rat (Rattus rattus) – introduced
SHREWS (SORICIDAE) (1/48)
Ecuadorean Small-eared Shrew (Cryptotis equatoris) – endemic
SHEATH-TAILED BATS (EMBALLONURIDAE) (14/22)
Gray Sac-winged Bat (Balantiopteryx plicata)
Thomas’s Shaggy Bat (Centronycteris centralis)
Chestnut Sac-winged Bat (Cormura brevirostris) – endemic
Short-eared Bat (Cyttarops alecto) – endemic
Northern Ghost Bat (Diclidurus albus)
Greater Dog-like Bat (Peropteryx kappleri)
White-winged Dog-like Bat (P.leucoptera) – endemic
Lesser Dog-like Bat (P.macrotis)
Pale-winged Dog-like Bat (P.pallidoptera) – endemic
Proboscis Bat (Rhynchonycteris naso)
Greater Sac-winged Bat (Saccopteryx bilineata)
Frosted Sac-winged Bat (S.canescens) – endemic
Amazonian Sac-winged Bat (S.gymnura) – endemic
Lesser Sac-winged Bat (S.leptura)
THUMBLESS AND SMOKY BATS (FURIPTERIDAE) (1/2)
Thumbless Bat (Furipterus horrens) – endemic
GHOST-FACED AND MOUSTACHED BATS (MORMOOPIDAE) (5/11)
Davy’s Naked-backed Bat (Pteronotus davyi)
Big Naked-backed Bat (P.gymnonotus)
Mesoamerican Common Mustached Bat (P.mesoamericanus)
Wagner’s Lesser Mustached Bat (P.personatus) – endemic
Wagner’s Common Mustached Bat (P.rubiginosus) – endemic
BULLDOG BATS (NOCTILIONIDAE) (2/2)
Lesser Bulldog Bat (Noctilio albiventris)
Greater Bulldog Bat (N.leporinus)
NEW WORLD LEAF-NOSED BATS (PHYLLOSTOMIDAE) (77/205)
Ben Keith’s Short-tailed Bat (Carollia benkeithi) – endemic
Silky Short-tailed Bat (C.brevicauda) – endemic
Chestnut Short-tailed Bat (C.castanea) – endemic
Seba’s Short-tailed Bat (C.perspicillata)
Sowell’s Short-tailed Bat (C.sowelli)
Gray Short-tailed Bat (C.subrufa)
Common Vampire Bat (Desmodus rotundus)
Tailed Tailless Bat (Anoura caudifer) – endemic
Handley’s Tailless Bat (A.cultrata) – endemic
Tube-lipped Tailless Bat (A.fistulata) – endemic
Geoffroy’s Tailless Bat (A.geoffroyi)
Godman’s Long-tailed Bat (Choeroniscus godmani)
Underwood’s Long-tongued Bat (Hylonycteris underwoodi)
Baker’s Long-tongued Bat (Glossophaga bakeri) – endemic
Commissaris’s Long-tongued Bat (G.commissarisi)
Gray’s Long-tongued Bat (G.leachii)
Miller’s Long-tongued Bat (G.longirostris)
Merriam’s Long-tongued Bat (G.mutica)
Pallas’s Long-tongued Bat (G.soricina) – endemic
Niceforo’s Big-eared Bat (Trinycteris nicefori)
Orange Nectar Bat (Lonchophylla robusta) – endemic
Orange-throated Bat (Lampronycteris brachyotis)
Hairy Big-eared Bat (Micronycteris hirsuta) – endemic
Little Big-eared Bat (M.megalotis)
Common Big-eared Bat (M.microtis)
Tiny Big-eared Bat (M.minuta) – endemic
Schmidts’ Big-eared Bat (M.schmidtorum)
Northern Big-eared Bat (M.tresamici) – endemic
Long-legged Bat (Macrophyllum macrophyllum)
Common Fringe-lipped Bat (Trachops cirrhosus) – endemic
Central American Fringe-lipped Bat (T.coffini)
Atlantic Forest Fringe-lipped Bat (T.ehrhardti) – endemic
Striped Hairy-nosed Bat (Gardnerycteris crenulata) – endemic
Mesoamerican Round-eared Bat (Lophostoma nicaraguae)
White-throated Round-eared Bat (L.silvicola) – endemic
Pale-faced Bat (Phylloderma stenops)
Pale Spear-nosed Bat (Phyllostomus discolor)
Lesser Spear-nosed Bat (P.elongatus) – endemic
Greater Spear-nosed Bat (P.hastatus) – endemic
Guianan Spear-nosed Bat (P.latifolius) – endemic
Northern Stripe-headed Round-eared Bat (Tonatia bakeri)
Southern Stripe-headed Round-eared Bat (T.maresi) – endemic
Woolly False Vampire Bat (Chrotopterus auritus)
Spectral Bat (Vampyrum spectrum)
Fischer’s Little Fruit Bat (Rhinophylla fischerae) – endemic
Dwarf Little Fruit Bat (R.pumilio) – endemic
Brown Fruit-eating Bat (Artibeus concolor) – endemic
Intermediate Fruit-eating Bat (A.intermedius)
Jamaican Fruit-eating Bat (A.jamaicensis)
Great Fruit-eating Bat (A.lituratus)
Dark Fruit-eating Bat (A.obscurus) – endemic
Flat-faced Fruit-eating Bat (A.planirostris)
Hairy Big-eyed Bat (Chiroderma villosum)
Andersen’s Fruit-eating Bat (Dermanura anderseni) – endemic
Gervais’s Fruit-eating Bat (D.cinerea) – endemic
Dwarf Fruit-eating Bat (D.gnomus) – endemic
Pygmy Fruit-eating Bat (D.phaeotis)
Toltec Fruit-eating Bat (D.tolteca)
Thomas’s Fruit-eating Bat (D.watsoni)
Honduran White Bat (Ectophylla alba) – endemic
MacConnell’s Bat (Mesophylla macconnelli) – endemic
Short-headed Broad-nosed Bat (Platyrrhinus brachycephalus) – endemic
Heller’s Broad-nosed Bat (P.helleri)
Incan Broad-nosed Bat (P.incarum) – endemic
Buffy Broad-nosed Bat (P.infuscus) – endemic
Common Tent-making Bat (Uroderma bilobatum) – endemic
Pacific Tent-making Bat (U.convexum)
Brown Tent-making Bat (U.magnirostrum)
Northern Little Yellow-eared Bat (Vampyressa thyone)
Bidentate Yellow-eared Bat (Vampyriscus bidens) – endemic
Brock’s Yellow-eared Bat (V.brocki) – endemic
Striped Yellow-eared Bat (V.nymphaeus) – endemic
Hairy Yellow-shouldered Bat (Sturnira erythromos) – endemic
Honduran Yellow-shouldered Bat (S.hondurensis)
Little Yellow-shouldered Bat (S.lilium) – endemic
Northern Yellow-shouldered Bat (S.parvidens)
Tilda’s Yellow-shouldered Bat (S.tildae) – endemic
DISC-WINGED BATS (THYROPTERIDAE) (2/5)
Peters’s Disk-winged Bat (Thyroptera discifera) – endemic
Spix’s Disk-winged Bat (T.tricolor)
FREE-TAILED BATS (MOLOSSIDAE) (12/54)
Cinnamon Dog-faced Bat (Cynomops abrasus) – endemic
Mexican Dog-faced Bat (C.mexicanus)
Common Dwarf Bonneted Bat (Eumops bonariensis) – endemic
Fierce Bonneted Bat (E.ferox)
Dwarf Dog-faced Bat (Molossops temminckii) – endemic
Alvarez’s Mastiff Bat (Molossus alvarezi)
Bonda Mastiff Bat (M.bondae) – endemic
Pallas’s Mastiff Bat (M.molossus)
Miller’s Mastiff Bat (M.pretiosus)
Broad-eared Free-tailed Bat (Nyctinomops laticaudatus)
Big Crested Mastiff Bat (Promops centralis)
Brazilian Free-tailed Bat (Tadarida brasiliensis)
FUNNEL-EARED BATS (NATALIDAE) (1/4)
Mexican Funnel-eared Bat (Natalus mexicanus)
EVENING BATS (VESPERTILIONIDAE) (14/78)
Silver-tipped Myotis (Myotis albescens)
Atacama Myotis (M.atacamensis) – endemic
Chilean Myotis (M.chiloensis) – endemic
Elegant Myotis (M.elegans)
Mexican Black Myotis (M.extremus)
Common Black Myotis (M.nigricans) – endemic
Montane Myotis (M.oxyotus) – endemic
Riparian Myotis (M.riparius) – endemic
Bickham’s Yellow Bat (Rhogeessa bickhami)
Big Brown Bat (Eptesicus fuscus)
Brazilian Serotine (Neoeptesicus brasiliensis)
Diminutive Serotine (N.diminutus) – endemic
Argentine Serotine (N.furinalis)
Desert Red Bat (Lasiurus frantzii)
SKUNKS AND STINK-BADGERS (MEPHITIDAE) (4/7)
Molina’s Hog-nosed Skunk (Conepatus chinga) – endemic
Striped Hog-nosed Skunk (C.semistriatus)
Hooded Skunk (Mephitis macroura)
Southern Spotted Skunk (Spilogale angustifrons)
MUSTELIDS (MUSTELIDAE) (6/13)
Tayra (Eira barbara)
Lesser Grison (Galictis cuja) – endemic
Marine Otter (Lontra felina) – endemic
Central Neotropical River Otter (L.longicaudis) – endemic
Southern River Otter (L.provocax) – endemic
Giant Otter (Pteronura brasiliensis) – endemic
RACCOONS, COATIS, AND ALLIES (PROCYONIDAE) (10/11)
Eastern Lowland Olingo (Bassaricyon alleni) – endemic
Northern Olingo (B.gabbii) – endemic
Western Lowland Olingo (B.medius) – endemic
Olinguito (B.neblina) – endemic
Cacomistle (Bassariscus sumichrasti)
White-nosed Coati (Nasua narica)
South American Coati (N.nasua) – endemic
Kinkajou (Potos flavus)
Crab-eating Raccoon (Procyon cancrivorus) – endemic
Northern Raccoon (P.lotor)
EARED SEALS (OTARIIDAE) (2/8)
South American Fur Seal (Arctocephalus australis)
South American Sea Lion (Otaria flavescens)
EARLESS SEALS (PHOCIDAE) (1/4)
Southern Elephant Seal (Mirounga leonina)
BEARS (URSIDAE) (1/1)
Andean Bear (Tremarctos ornatus) – endemic
CANIDS (CANIDAE) (9/13)
Short-eared Dog (Atelocynus microtis) – endemic
Crab-eating Fox (Cerdocyon thous) – endemic
Maned Wolf (Chrysocyon brachyurus) – endemic
Culpeo (Lycalopex culpaeus) – endemic
Darwin’s Fox (L.fulvipes) – endemic
South American Gray Fox (L.grisea) – endemic
Pampas Fox (L.gymnocerca) – endemic
Sechuran Fox (L.sechurae) – endemic
Northern Gray Fox (Urocyon cinereoargenteus)
FELIDS (FELIDAE) (8/18)
Domestic Cat (Felis catus) – introduced
Jaguarundi (Herpailurus yagouaroundi)
Northern Colocolo (Leopardus garleppi) – endemic
Geoffroy’s Cat (L.geoffroyi) – endemic
Andean Mountain Cat (L.jacobita) – endemic
Ocelot (L.pardalis)
Puma (Puma concolor)
Jaguar (Panthera onca)
TAPIRS (TAPIRIDAE) (3/3)
Central American Tapir (Tapirus bairdii)
Mountain Tapir (T.pinchaque) – endemic
Lowland Tapir (T.terrestris) – endemic
EQUINES (EQUIDAE) (1/2)
Domestic Ass (Equus asinus) – introduced
DEER (CERVIDAE) (11/25)
Gray Brocket (Bisbalus citus) – endemic
Marsh Deer (Blastocerus dichotomus) – endemic
North Andean Huemul (Hippocamelus antisensis) – endemic
South Andean Huemul (H.bisulcus) – endemic
Northwestern Red Brocket (Mazama americana) – endemic
Central American Red Brocket (M.temama)
White-tailed Deer (Odocoileus virginianus)
Pampas Deer (Ozotoceros bezoarticus) – endemic
Northern Brown Brocket (Passalites nemorivagus) – endemic
Southern Pudu (Pudu puda) – endemic
Chital (Axis axis) – introduced
SUIDS (SUIDAE) (1/2)
Domestic Pig (Sus domesticus) – introduced
PECCARIES (TAYASSUIDAE) (3/3)
Collared Peccary (Dicotyles tajacu)
Chacoan Peccary (Parachoerus wagneri) – endemic
White-lipped Peccary (Tayassu pecari)
CAMELIDS (CAMELIDAE) (2/3)
Guanaco (Lama guanicoe) – endemic
Vicuna (L.vicugna) – endemic
BOWHEAD AND RIGHT WHALES (BALAENIDAE) (1/1)
Southern Right Whale (Eubalaena australis)
RORQUALS (BALAENOPTERIDAE) (0/8)
Bryde’s Whale (Balaenoptera brydei) (?)
OCEANIC DOLPHINS (DELPHINIDAE) (8/25)
Tucuxi (Sotalia fluviatilis) – endemic
Guiana Dolphin (S.guianensis)
Pantropical Spotted Dolphin (Stenella attenuata)
Common Bottlenose Dolphin (Tursiops truncatus)
False Killer Whale (Pseudorca crassidens)
Commerson’s Dolphin (Cephalorhynchus commersonii)
Chilean Dolphin (C.eutropia) – endemic
Peale’s Dolphin (Sagmatias australis)
PORPOISES (PHOCOENIDAE) (1/2)
Burmeister’s Porpoise (Phocoena spinipinnis) – endemic
SOUTH AMERICAN RIVER DOLPHINS (INIIDAE) (3/4)
Bolivian River Dolphin (Inia boliviensis) – endemic
Amazon River Dolphin (I.geoffrensis) – endemic
Orinoco River Dolphin (I.humboldtiana) – endemic
ESTUARINE RIVER DOLPHINS (PONTOPORIIDAE) (1/1)
Franciscana (Pontoporia blainvillei) – endemic

468 SPECIES