Category:IUCN Red List data deficient species
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- Species known from a single specimen (149 P)
Pages in category "IUCN Red List data deficient species"
The following 200 pages are in this category, out of approximately 6,446 total. This list may not reflect recent changes.
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- O'Connell's spiny rat
- Oaxaca mud turtle
- Oaxacan broad-clawed shrew
- Obbia lark
- Occidental gerbil
- Occidodiaptomus kummerloewei
- Ocellate river stingray
- Ocotea oocarpa
- Octopoteuthis danae
- Octopoteuthis deletron
- Odessa barb
- Odontesthes bonariensis
- Odontesthes gracilis
- Odontobutis potamophila
- Odontodiaptomus thomseni
- Odontogomphus donnellyi
- Odorrana leporipes
- Odorrana livida
- Odorrana mawphlangensis
- Odorrana monjerai
- Odorrana sinica
- Oecomys cleberi
- Oecomys paricola
- Oedipina altura
- Oedipina collaris
- Oedipina paucidentata
- Oedipina pseudouniformis
- Oedipina stuarti
- Oedothelphusa
- Oenocarpus simplex
- Ogasawarana arata
- Ogasawarana capsula
- Ogasawarana comes
- Ogasawarana discrepans
- Ogasawarana hirasei
- Ogasawarana microtheca
- Ogasawarana nitida
- Ogasawarana ogasawarana
- Ogasawarana optima
- Ohrid minnow
- Ohrid trout
- Okinawa flying fox
- Oldenlandia aretioides
- Olearia angulata
- Oligactis cusalaguensis
- Oligocentria pinalensis
- Oligodon annamensis
- Oligodon hamptoni
- Oligodon jintakunei
- Oligodon macrurus
- Oligodon melaneus
- Oligodon melanozonatus
- Oligodon moricei
- Oligodon nikhili
- Oligodon perkinsi
- Oligodon petronellae
- Oligodon praefrontalis
- Oligodon propinquus
- Oligodon saintgironsi
- Oligodon torquatus
- Oligodon travancoricus
- Oligodon vertebralis
- Oligodon wagneri
- Oligoryzomys brendae
- Oligoryzomys moojeni
- Oligoryzomys rupestris
- Olive
- Ololygon arduous
- Ololygon ariadne
- Ololygon atrata
- Ololygon canastrensis
- Ololygon heyeri
- Ololygon jureia
- Ololygon kautskyi
- Ololygon melloi
- Ololygon ranki
- Ololygon strigilata
- Olrog's four-eyed opossum
- Olyra burmanica
- Olyra horae
- Oman bullhead shark
- Omilteme cottontail
- Omiodes fullawayi
- Omobranchus robertsi
- Omobranchus steinitzi
- Omphalotropis carolinensis
- Omphalotropis cookei
- Omphalotropis elegans
- Omphalotropis elongatula
- Omphalotropis erosa
- Omphalotropis fragilis
- Omphalotropis gracilis
- Omphalotropis guamensis
- Omphalotropis howeinsulae
- Omphalotropis laticosta
- Omphalotropis latilabris
- Omphalotropis mutica
- Omphalotropis ochthogyra
- Omphalotropis picta
- Omphalotropis pilosa
- Omphalotropis quadrasi
- Omphalotropis sp. nov. 2
- Omphalotropis striatapila
- Omphalotropis submaritima
- Omphalotropis suturalis
- Omphalotropis tumidula
- Omphalotropis vohimenae
- Omura's whale
- Onychodiaptomus louisianensis
- Onychogomphus bwambae
- Onychogomphus kitchingmani
- Onychogomphus malabarensis
- Onychogomphus pilosus
- Onychostoma barbatulum
- Onychostoma lini
- Onychostoma ovale
- Onychostoma simum
- Onychostoma uniforme
- Onychoteuthis banksii
- Onychoteuthis bergii
- Onychoteuthis borealijaponica
- Onychoteuthis compacta
- Onychoteuthis meridiopacifica
- Onykia carriboea
- Onykia robusta
- Opeatogenys cadenati
- Ophiclinops pardalis
- Ophioglossolambis violacea
- Ophiomorus latastii
- Ophisaurus incomptus
- Ophisops elbaensis
- Ophryophryne gerti
- Ophryophryne hansi
- Opisthoteuthis agassizii
- Opisthoteuthis albatrossi
- Opisthoteuthis borealis
- Opisthoteuthis bruuni
- Opisthoteuthis californiana
- Opisthoteuthis depressa
- Opisthoteuthis dongshaensis
- Opisthoteuthis extensa
- Opisthoteuthis grimaldii
- Opisthoteuthis hardyi
- Opisthoteuthis japonica
- Opisthoteuthis medusoides
- Opisthoteuthis persephone
- Opisthoteuthis philipii
- Opisthoteuthis pluto
- Opisthoteuthis robsoni
- Opisthotropis atra
- Opisthotropis cucae
- Opisthotropis jacobi
- Opisthotropis maculosa
- Opisthotropis maxwelli
- Opisthotropis tamdaoensis
- Opsaridium boweni
- Opsaridium engrauloides
- Opsaridium leleupi
- Opsaridium maculicauda
- Opsaridium splendens
- Opsariichthys bea
- Opsariichthys hieni
- Opsariichthys songmaensis
- Opsarius cocsa
- Opuntia aciculata
- Opuntia cochenillifera
- Opuntia ficus-indica
- Orange-fingered myotis
- Orange-speckled forest-skink
- Orange-spotted snakehead
- Orangebelly goby
- Orca
- Orcés's long-tongued bat
- Orchestia gammarellus
- Orchestia mediterranea
- Orconectes barri
- Orectolobus reticulatus
- Oreichthys crenuchoides
- Oreichthys parvus
- Oreobates discoidalis
- Oreobates heterodactylus
- Oreoglanis macronemus
- Oreokera cumulus
- Oreokera nimbus
- Oreolalax weigoldi
- Oreomava cannfluviatilus
- Oreonectes furcocaudalis
- Oreopanax klugii
- Oreophryne alticola
- Oreophryne asplenicola
- Oreophryne atrigularis
- Oreophryne brevicrus
- Oreophryne clamata
- Oreophryne flava
- Oreophryne frontifasciata
- Oreophryne geminus
- Oreophryne habbemensis
- Oreophryne kampeni
- Oreophryne loriae
- Oreophryne pseudasplenicola