MAMMALS OF ECUADOR
| XX | Genus | Species | English | Spanish | EC |
| Caluromys | derbianus | Derby's Pale-eared Woolly Opossum | Guazalillo Dorado, Tacuacín lanoso (HN) | P | |
| Glironia | venusta | Bushy-tailed Opossum | P | ||
| Chironectes | minimus | Water Opossum | Tacuacín, guazalo de agua (HN) | P | |
| Didelphis | marsupialis | Common (Southern, Black-eared) Opossum | Rabipelado, Comadreja Grande | P | |
| Gracilinanus | dryas | Wood-sprite Gracile Opossum | P | ||
| Marmosa | lepida | Little Rufous Mouse Opossum | P | ||
| Marmosa | murina | Murine Mouse Opossum | Marmosa Ratón | P | |
| Marmosa | robinsoni | Robinson's Mouse Opossum | P | ||
| Marmosa | rubra | Red Mouse Opossum | P | ||
| Marmosops | noctivagus | White-bellied Slender Mouse Opossum | P | ||
| Micoureus | regina | Bare-tailed Woolly Mouse Opossum | P | ||
| Monodelphis | adusta | Andean Short-tailed Opossum | P | ||
| Philander | andersoni | Black Four-eyed Opossum | P | ||
| Philander | opossum | Gray Four-eyed Opossum | Tacuacín de cuatro ojos, Comadreja (HN) | P | |
| Caenolestes | caniventer | Pale-bellied Shrew Opossum | P | ||
| Caenolestes | convelatus | Northern Shrew Opossum | P | ||
| Caenolestes | fuliginosus | Common Gray Shrew (Rat) Opossum | Ratón Comadreja | P | |
| Bradypus | variegatus | Brown-throated Three-toed Sloth | Perezoso Bayo | P | |
| Choloepus | hoffmanni | Hoffmann's Two-toed Sloth | Perezoso de Dos Dedos | P | |
| Cabassous | centralis | Northern Naked-tailed Armadillo | P | ||
| Dasypus | novemcinctus | Nine-banded Armadillo | Mulita Grande | P | |
| Tamandua | mexicana | Northern Tamandua | P | ||
| Cryptotis | montivaga | Gray Andean Small-eared Shrew | P | ||
| Balantiopteryx | infusca | Ecuadorian Sac-winged Bat | P | ||
| Centronycteris | maximiliani | Shaggy-haired Bat | P | ||
| Diclidurus | albus | Northern Ghost Bat | Murciélago blanco o fantasma (HN) | P | |
| Peropteryx | kappleri | Murciélago oscuro de ala con saco (HN) | P | ||
| Saccopteryx | bilineata | Greater White-lined Bat | Murciélago de líneas blancas (HN) | P | |
| Noctilio | leporinus | Greater Bulldog Bat | Murciélago pescador (HN) | P | |
| Mormoops | megalophylla | Leaf-chinned (Ghost-faced) Bat | Murciélago de barba de pétalo | P | |
| Micronycteris | daviesi | Little Big-eared Bat | Murciélago orejón de Davie (HN) | P | |
| Lonchophylla | hesperia | P | |||
| Lonchophylla | robusta | Long-tongued Bat | P | ||
| Lonchophylla | thomasi | P | |||
| Choeroniscus | minor | P | |||
| Choeroniscus | periosus | P | |||
| Glossophaga | commissarisi | P | |||
| Glossophaga | longirostris | P | |||
| Glossophaga | soricina | Pallas' Long-tongued Bat | Falso Vampiro Soricina | P | |
| Rhinophylla | alethina | P | |||
| Artibeus | anderseni | P | |||
| Artibeus | fraterculus | P | |||
| Artibeus | glaucus | P | |||
| Artibeus | lituratus | Fruit-eating Bat | Falso Vampiro Cariblanco | P | |
| Artibeus | obscurus | P | |||
| Artibeus | phaeotis | Pygmy Fruit-eating Bat | P | ||
| Artibeus | toltecus | Toltec Fruit-eating Bat | Q | ||
| Chiroderma | salvini | Salvin's White-lined Bat | P | ||
| Chiroderma | villosum | Big-eyed Bat | P | ||
| Mesophylla | macconnelli | P | |||
| Platyrrhinus | dorsalis | P | |||
| Platyrrhinus | helleri | Heller's Broad-nosed Bat | P | ||
| Platyrrhinus | lineatus | Geoffroy's Rayed Bat | Falso Vampiro Listado | P | |
| Platyrrhinus | vittatus | P | |||
| Sturnira | aratathomasi | Giant Andean Fruit Bat | P | ||
| Sturnira | lilium | Common Yellow-shouldered Bat | Falso Vampiro | P | |
| Sturnira | ludovici | P | |||
| Sturnira | luisi | P | |||
| Uroderma | bilobatum | Peters' Tent-making Bat | P | ||
| Vampyressa | melissa | P | |||
| Vampyressa | nymphaea | Yellow-eared Bat | P | ||
| Desmodus | rotundus | Vampire Bat | Vampiro de Azara | P | |
| Diphylla | ecaudata | Hairy-legged Vampire Bat | Vampiro de Doble Escudo | P | |
| Amorphochilus | schnablii | P | |||
| Eptesicus | brasiliensis | Brazilian Brown Bat | Murciélago Pardo | P | |
| Eptesicus | furinalis | Murciélago Pardusco | P | ||
| Histiotus | montanus | Murciélago Orejon Chico | P | ||
| Lasiurus | cinereus | Hoary Bat | P | ||
| Lasiurus | ega | Southern Yellow Bat | Murciélago Leonado | P | |
| Myotis | albescens | Paraguayan Myotis | Murciélago Blancuzo | P | |
| Myotis | keaysi | Black Myotis | P | ||
| Myotis | nigricans | Black myotis | Murciélago Castańo | P | |
| Myotis | oxyotus | P | |||
| Myotis | riparius | Murciélago Ocraceo | P | ||
| Eumops | auripendulus | Slouch-Eared Bat | Moloso Alilargo | P | |
| Eumops | bonariensis | Mastiff Bat | Moloso Orejiancho | P | |
| Eumops | glaucinus | Florida Mastiff Bat | Moloso Negro | P | |
| Eumops | perotis | Greater Mastiff Bat | Moloso Gigante | P | |
| Molossops | aequatorianus | P | |||
| Molossus | ater | Red Mastiff Bat | Moloso Coludo | P | |
| Molossus | bondae | P | |||
| Molossus | molossus | Pallas Mastil Bat | P | ||
| Nyctinomops | laticaudatus | Broad-Tailed Bat | Moloso Colilargo | P | |
| Promops | centralis | Mastil Bat | Moloso Rufo | P | |
| Promops | nasutus | Moloso Moreno | P | ||
| Tadarida | brasiliensis | Brazilian Free-tailed Bat | Moloso Común | P | |
| Saguinus | tripartitus | Golden Mantled Tamarin | P | ||
| Alouatta | palliata | Mantled Howler Monkey | P | ||
| Aotus | lemurinus | Lemurine Night Monkey | P | ||
| Aotus | vociferans | Spix's Night Monkey | P | ||
| Ateles | fusciceps | Black-headed Spider Monkey | P | ||
| Cebus | capucinus | White-throated Capuchin, Sapajou | Capuchin, Carita Blanca | P | |
| Pithecia | aequatorialis | Equatorial Saki | P | ||
| Pithecia | monachus | Monk Saki | P | ||
| Atelocynus | microtis | Small Eared Zorro (Dog) | Zorro de Orejas Cortas | P | |
| Pseudalopex | culpaeus | Culpeo (South American) Fox | Zorro Colorado | P | |
| Pseudalopex | sechurae | Sechura Desert Fox, Sechuran Zorro | P | ||
| Leopardus | tigrinus | Little Spotted Cat | Gato Tigre | P | |
| Leopardus | wiedii | Margay | Gato Pintado | P | |
| Puma | concolor | Puma, Mountain Lion, Cougar | Puma Americano | P | |
| Eira | barbara | Tayra | Cabeza de Viejo | P | |
| Mustela | africana | Amazon Weasel | P | ||
| Mustela | felipei | P | |||
| Mustela | frenata | Long-tailed Weasel | P | ||
| Arctocephalus | galapagoensis | Galapagos Fur Seal | P | ||
| Bassaricyon | gabbii | Bushy-tailed Olingo | P | ||
| Potos | flavus | Cuchicuchi | P | ||
| Nasuella | olivacea | Little (Mountain) Coati | Coati Oliva | P | |
| Procyon | cancrivorus | Crab-eating Raccoon | Osito Lavador | P | |
| Tremarctos | ornatus | Spectacled Bear | Oso | P | |
| Balaenoptera | acutorostrata | Minke Whale | Rorcual Menor | P | |
| Balaenoptera | borealis | Sei Whale | Rorcual Mediano | P | |
| Balaenoptera | edeni | Bryde's Whale | P | ||
| Balaenoptera | musculus | Blue Whale | Rorcual Azul | P | |
| Balaenoptera | physalus | Fin Whale | Rorcual Común | P | |
| Megaptera | novaeangliae | Humpback Whale | Jorobada | P | |
| Delphinus | delphis | Common (Saddleback) Dolphin | Delfin Comün | P | |
| Feresa | attenuata | Pygmy Killer Whale | P | ||
| Globicephala | macrorhynchus | Short-finned (Indian) Pilot Whale | P | ||
| Grampus | griseus | Risso's Dolphin | P | ||
| Lagenodelphis | hosei | Fraser's Dolphin | P | ||
| Orcinus | orca | Killer Whale | Orca | P | |
| Peponocephala | electra | Melon-headed Whale | P | ||
| Pseudorca | crassidens | False Killer Whale | Falsa Orca | P | |
| Stenella | attenuata | Pan-tropical Spotted Dolphin | Delfín Pardo | P | |
| Stenella | coeruleoalba | Striped Dolphin | Delfín Azul | P | |
| Stenella | longirostris | Spinner Dolphin | P | ||
| Steno | bredanensis | Rough-toothed Dolphin | P | ||