Mammalia

Ross Seal

Ommatophoca rossii

Phocidae

Common Muskrat

Ondatra zibethicus

Bridled Nailtail Wallaby

Onychogalea fraenata

Crescent Nail-tailed Wallaby

Onychogalea lunata

Northern Nailtail Wallaby

Onychogalea unguifera

Chihuahuan Grasshopper Mouse

Onychomys arenicola

Northern Grasshopper Mouse

Onychomys leucogaster

Southern Grasshopper Mouse

Onychomys torridus

Irrawaddy Dolphin

Orcaella brevirostris

Delphinidae

Australian Snubfin Dolphin

Orcaella heinsohni

Delphinidae

Killer Whale

Orcinus orca

Delphinidae

Mountain Goat

Oreamnos americanus

Peruvian Rice Rat

Oreoryzomys balneator

Japanese Mountain Mole

Oreoscaptor mizura

Talpidae

Klipspringer

Oreotragus oreotragus

Balikun Jerboa

Orientallactaga balikunica

Dipodidae

Gobi Jerboa

Orientallactaga bullata

Dipodidae

Siberian Jerboa

Orientallactaga sibirica

Dipodidae

Platypus

Ornithorhynchus anatinus

Ornithorhynchidae

Giant Pocket Gopher

Orthogeomys grandis

Geomyidae

Aardvark

Orycteropus afer

Orycteropodidae

European Rabbit

Oryctolagus cuniculus

Leporidae

Wild European rabbit

Oryctolagus cuniculus cuniculus

Leporidae

Beisa Oryx

Oryx beisa

Scimitar-horned Oryx

Oryx dammah

Gemsbok

Oryx gazella

Arabian Oryx

Oryx leucoryx

Coues's Rice Rat

Oryzomys albiventer

Coues's Rice Rat

Oryzomys antillarum

Coues's Rice Rat

Oryzomys couesi

Thomas's Rice Rat

Oryzomys dimidiatus

Gorgas Oryzomys

Oryzomys gorgasi

Nelson's Rice Rat

Oryzomys nelsoni

Marsh Rice Rat

Oryzomys palustris

Marsh Rice Rat

Oryzomys texensis

Mole-like Rice Tenrec

Oryzorictes hova

Tenrecidae

Four-toed Rice Tenrec

Oryzorictes tetradactylus

Tenrecidae

Michoacan Deer Mouse

Osgoodomys banderanus

Antilopine Kangaroo

Osphranter antilopinus

Woodward s Wallaroo

Osphranter bernardus

Wallaroo

Osphranter robustus

Red Kangaroo

Osphranter rufus

South American Sea Lion

Otaria byronia

Otariidae

Pallas' Cat

Otocolobus manul

Felidae

Bat-eared Fox

Otocyon megalotis

Canidae

Thick-tailed Greater Galago

Otolemur crassicaudatus

Galagidae

Garnett's Greater Galago

Otolemur garnettii

Galagidae

Java Giant Mastiff Bat

Otomops formosus

Harrison's Giant Mastiff Bat

Otomops harrisoni

Johnstone's Giant Mastiff Bat

Otomops johnstonei

Madagascar Free-tailed Bat

Otomops madagascariensis

Large-eared Giant Mastiff Bat

Otomops martiensseni

Papuan Free-tailed Bat

Otomops papuensis

Mantled Free-tailed Bat

Otomops secundus

Wroughton's Free-tailed Bat

Otomops wroughtoni

Angolan Vlei Rat

Otomys anchietae

Angoni Vlei Rat

Otomys angoniensis

South East African Vlei Rat

Otomys auratus

Barbour’s Vlei Rat

Otomys barbouri