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- Polyborus: (Chordata, Aves, Falconiformes, Polyborus)
- Polyborus cheriway (Chordata, Aves, Falconiformes, Polyborus)
- Polyborus lutosus (Chordata, Aves, Falconiformes, Polyborus)
- Polybrachia: (Cnidaria, Hydrozoa, Capitata, Polybrachia)
- Polycelis: (Platyhelminthes, Turbellaria, Tricladida, Polycelis)
- Polycelis felina (Platyhelminthes, Turbellaria, Tricladida, Polycelis)
- Polycelis nigra (Platyhelminthes, Turbellaria, Tricladida, Polycelis)
- Polycentrus schomburgkii: (Chordata, Actinopterygii, Perciformes, Polycentrus)
- Polycirrus aurantiacus: (Annelida, Polychaeta, Terebellida, Polycirrus)
- Polydesmus: (Arthropoda, Diplopoda, Polydesmida, Polydesmus)
- Polydesmus gallicus (Arthropoda, Diplopoda, Polydesmida, Polydesmus)
- Polygonia c-album: (Arthropoda, Insecta, Lepidoptera, Polygonia)
- Polygordius: (Annelida, Polychaeta, Protodrilida, Polygordius)
- Polyipnus laternatus: (Chordata, Actinopterygii, Stomiiformes, Polyipnus)
- Polymitarcys virgo: (Arthropoda, Insecta, Ephemeroptera, Polymitarcys)
- Polyodon spathula: (Chordata, Actinopterygii, Acipenseriformes, Polyodon)
- Polyommatus icarus: (Arthropoda, Insecta, Lepidoptera, Polyommatus)
- Polyphemus pediculus: (Arthropoda, Branchiopoda, Diplostraca, Polyphemus)
- Polyphylla fullo: (Arthropoda, Insecta, Coleoptera, Polyphylla)
- Polyprion americanum: (Chordata, Actinopterygii, Perciformes, Polyprion)
- Polypterus bichir: (Chordata, Actinopterygii, Polypteriformes, Polypterus)
- Polysticta stelleri: (Chordata, Aves, Anseriformes, Polysticta)
- Polyxenus lagurus: (Arthropoda, Diplopoda, Polyxenida, Polyxenus)
- Pollachius pollachius: (Chordata, Actinopterygii, Gadiformes, Pollachius)
- Pollack: (Chordata, Actinopterygii, Gadiformes, Pollachius)
- Pollenia: (Arthropoda, Insecta, Diptera, Pollenia)
- Pollenia atramentaria (Arthropoda, Insecta, Diptera, Pollenia)
- Pollenia rudis (Arthropoda, Insecta, Diptera, Pollenia)
- Pollenia vespillo (Arthropoda, Insecta, Diptera, Pollenia)
- Pollicipes cornucopia: (Arthropoda, Maxillopoda, Pedunculata, Pollicipes)
- Pomacanthus: (Chordata, Actinopterygii, Perciformes, Pomacanthus)
- Pomacanthus imperator (Chordata, Actinopterygii, Perciformes, Pomacanthus)
- Pomacanthus paru (Chordata, Actinopterygii, Perciformes, Pomacanthus)
- Pomacanthus semicirculatus (Chordata, Actinopterygii, Perciformes, Pomacanthus)
- Pomatoceros: (Annelida, Polychaeta, Sabellida, Pomatoceros)
- Pomatoceros triqueter (Annelida, Polychaeta, Sabellida, Pomatoceros)
- Pomatomus saltatrix: (Chordata, Actinopterygii, Perciformes, Pomatomus)
- Pomolobus pseudoharengus: (Chordata, Actinopterygii, Clupeiformes, Pomolobus)
- Pomolunus chrysochloris: (Chordata, Actinopterygii, Clupeiformes, Pomolunus)
- Pompilus viaticus: (Arthropoda, Insecta, Hymenoptera, Pompilus)
- Pomponia imperatoria: (Arthropoda, Insecta, Hemiptera, Pomponia)
- Pongo: (Chordata, Mammalia, Primates, Pongo)
- Pongo pygmaeus abeli (Chordata, Mammalia, Primates, Pongo)
- Pongo pygmaeus (Chordata, Mammalia, Primates, Pongo)
- Pontania capreae: (Arthropoda, Insecta, Hymenoptera, Pontania)
- Pontella mediterranea: (Arthropoda, Maxillopoda, Calanoida, Pontella)
- Pontia: (Arthropoda, Insecta, Lepidoptera, Pontia)
- Pontia callidice (Arthropoda, Insecta, Lepidoptera, Pontia)
- Pontia daplidice (Arthropoda, Insecta, Lepidoptera, Pontia)
- Pontia helice (Arthropoda, Insecta, Lepidoptera, Pontia)
- Pontobdella muricata: (Annelida, Clitellata, Hirudinida, Pontobdella)
- Pontogenia chrysocoma: (Annelida, Polychaeta, Phyllodocida, Pontogenia)
- Pontonia flavomaculata: (Arthropoda, Malacostraca, Decapoda, Pontonia)
- Porania pulvillus: (Echinodermata, Asteroidea, Valvatida, Porania)
- Porcellana longicornis: (Arthropoda, Malacostraca, Decapoda, Porcellana)
- Porcellio: (Arthropoda, Malacostraca, Isopoda, Porcellio)
- Porcellio monticola (Arthropoda, Malacostraca, Isopoda, Porcellio)
- Porcellio scaber (Arthropoda, Malacostraca, Isopoda, Porcellio)
- Porichthys: (Chordata, Actinopterygii, Batrachoidiformes, Porichthys)
- Porichthys notatus (Chordata, Actinopterygii, Batrachoidiformes, Porichthys)
- Porichthys porosissimus (Chordata, Actinopterygii, Batrachoidiformes, Porichthys)
- Porina: (Ascomycota, Lecanoromycetes, Gyalectales, Porina)
- Porites: (Cnidaria, Anthozoa, Scleractinia, Porites)
- Porphyrio: (Chordata, Aves, Gruiformes, Porphyrio)
- Porphyrio alleni (Chordata, Aves, Gruiformes, Porphyrio)
- Porphyrio porphyrio (Chordata, Aves, Gruiformes, Porphyrio)
- Porphyrula: (Chordata, Aves, Gruiformes, Porphyrula)
- Porphyrula martinica (Chordata, Aves, Gruiformes, Porphyrula)
- Porpita: (Cnidaria, Hydrozoa, Anthoathecata, Porpita)
- Portumnus latipes: (Arthropoda, Malacostraca, Decapoda, Portumnus)
- Portunus: (Arthropoda, Malacostraca, Decapoda, Portunus)
- Portunus corrugatus (Arthropoda, Malacostraca, Decapoda, Portunus)
- Portunus hastatus (Arthropoda, Malacostraca, Decapoda, Portunus)
- Portunus holsatus (Arthropoda, Malacostraca, Decapoda, Portunus)
- Portunus puber (Arthropoda, Malacostraca, Decapoda, Portunus)
- Porzana: (Chordata, Aves, Gruiformes, Porzana)
- Porzana carolina (Chordata, Aves, Gruiformes, Porzana)
- Porzana parva (Chordata, Aves, Gruiformes, Porzana)
- Porzana porzana (Chordata, Aves, Gruiformes, Porzana)
- Porzana pusilla (Chordata, Aves, Gruiformes, Porzana)
- Potamanthus luteus: (Arthropoda, Insecta, Ephemeroptera, Potamanthus)
- Potamobius pallipes: (Arthropoda, Malacostraca, Decapoda, Potamobius)
- Potamochoerus porcus: (Chordata, Mammalia, Artiodactyla, Potamochoerus)
- Potamogale velox: (Chordata, Mammalia, Afrosoricida, Potamogale)
- Potamotrygon: (Chordata, Chondrichthyes, Myliobatiformes, Potamotrygon)
- Potorus tridactylus: (Chordata, Mammalia, Diprotodontia, Potorus)
- Potos flavus: (Chordata, Mammalia, Carnivora, Potos)
- Pratylenchus pratensis: (Nematoda, Secernentea, Tylenchida, Pratylenchus)
- Praunus inermis: (Arthropoda, Malacostraca, Mysida, Praunus)
- Prenolepis imparis: (Arthropoda, Insecta, Hymenoptera, Prenolepis)
- Presbytis: (Chordata, Mammalia, Primates, Presbytis)
- Presbytis entellus (Chordata, Mammalia, Primates, Presbytis)
- Presbytis geei (Chordata, Mammalia, Primates, Presbytis)
- Presbytis leucocephalus (Chordata, Mammalia, Primates, Presbytis)
- Presbytis obscurus (Chordata, Mammalia, Primates, Presbytis)
- Presbytis rubicundus (Chordata, Mammalia, Primates, Presbytis)
- Presbytis senex (Chordata, Mammalia, Primates, Presbytis)
- Priapocephalus grandis: (Platyhelminthes, Cestoda, Trypanorhyncha, Priapocephalus)
- Priocnemius fuscus: (Arthropoda, Insecta, Hymenoptera, Priocnemius)
- Priodontes gigas: (Chordata, Mammalia, Cingulata, Priodontes)
- Prionodon: (Chordata, Mammalia, Carnivora, Prionodon)
- Prionodon linsang (Chordata, Mammalia, Carnivora, Prionodon)
- Prionodon pardicolor (Chordata, Mammalia, Carnivora, Prionodon)
- Prionotropis flexuosa: (Arthropoda, Insecta, Orthoptera, Prionotropis)
- Prionotus carolinus: (Chordata, Actinopterygii, Scorpaeniformes, Prionotus)
- Pristella riddlei: (Chordata, Actinopterygii, Characiformes, Pristella)
- Pristiphora erichsonii: (Arthropoda, Insecta, Hymenoptera, Pristiphora)
- Pristis: (Chordata, Chondrichthyes, Pristiformes, Pristis)
- Pristis cuspidatus (Chordata, Chondrichthyes, Pristiformes, Pristis)
- Pristis pectinatus (Chordata, Chondrichthyes, Pristiformes, Pristis)
- Pristis perotteti (Chordata, Chondrichthyes, Pristiformes, Pristis)
- Pristis pristis (Chordata, Chondrichthyes, Pristiformes, Pristis)
- Prithesancus brawni: (Arthropoda, Insecta, Hemiptera, Prithesancus)
- Proales latrunculus: (Rotifera, Monogononta, Ploimida, Proales)
- Probosciger aterrimus: (Chordata, Aves, Psittaciformes, Probosciger)
- Procapra: (Chordata, Mammalia, Artiodactyla, Procapra)
- Procapra gutturosa (Chordata, Mammalia, Artiodactyla, Procapra)
- Procapromys geayi: (Chordata, Mammalia, Rodentia, Procapromys)
- Procavia capensis: (Chordata, Mammalia, Hyracoidea, Procavia)
- Procellaria diomedea: (Chordata, Aves, Procellariiformes, Procellaria)
- Procerodes lobata: (Platyhelminthes, Turbellaria, Tricladida, Procerodes)
- Processa edulis: (Arthropoda, Malacostraca, Decapoda, Processa)
- Procnias: (Chordata, Aves, Passeriformes, Procnias)
- Procnias averano (Chordata, Aves, Passeriformes, Procnias)
- Procnias tricarunculata (Chordata, Aves, Passeriformes, Procnias)
- Procris: (Arthropoda, Insecta, Lepidoptera, Procris)
- Procris hispanica (Arthropoda, Insecta, Lepidoptera, Procris)
- Procris statices (Arthropoda, Insecta, Lepidoptera, Procris)
- Proctoporus shrevei: (Chordata, Reptilia, Squamata, Proctoporus)
- Procyon: (Chordata, Mammalia, Carnivora, Procyon)
- Procyon cancrivorus (Chordata, Mammalia, Carnivora, Procyon)
- Procyon lotor (Chordata, Mammalia, Carnivora, Procyon)
- Profelis aurata: (Chordata, Mammalia, Carnivora, Profelis)
- Proformica: (Arthropoda, Insecta, Hymenoptera, Proformica)
- Proformica ferreri (Arthropoda, Insecta, Hymenoptera, Proformica)
- Proformica nasuta (Arthropoda, Insecta, Hymenoptera, Proformica)
- Progalago: (Chordata, Mammalia, Primates, Progalago)
- Progne subis: (Chordata, Aves, Passeriformes, Progne)
- Progyrator mamertinus: (Arthropoda, Insecta, Diptera, Progyrator)
- Prolabia arachidis: (Arthropoda, Insecta, Dermaptera, Prolabia)
- Promerops: (Chordata, Aves, Passeriformes, Promerops)
- Promerops cafer (Chordata, Aves, Passeriformes, Promerops)
- Promerops gurneyi (Chordata, Aves, Passeriformes, Promerops)
- Propithecus: (Chordata, Mammalia, Primates, Propithecus)
- Propithecus diadema diadema (Chordata, Mammalia, Primates, Propithecus)
- Propithecus edwardsi (Chordata, Mammalia, Primates, Propithecus)
- Propithecus perrieri (Chordata, Mammalia, Primates, Propithecus)
- Propithecus verreauxi coquereli (Chordata, Mammalia, Primates, Propithecus)
- Propithecus coronatus (Chordata, Mammalia, Primates, Propithecus)
- Propithecus deckeni (Chordata, Mammalia, Primates, Propithecus)
- Propithecus verreauxi (Chordata, Mammalia, Primates, Propithecus)
- Propotto: (Chordata, Mammalia, Primates, Propotto)
- Propylea: (Arthropoda, Insecta, Coleoptera, Propylea)
- Propylea punctata (Arthropoda, Insecta, Coleoptera, Propylea)
- Prosopium: (Chordata, Actinopterygii, Salmoniformes, Prosopium)
- Prosthemadera novae-zeelandiae: (Chordata, Aves, Passeriformes, Prosthemadera)
- Proteles cristatus: (Chordata, Mammalia, Carnivora, Proteles)
- Proteus anguinus: (Chordata, Amphibia, Urodela, Proteus)
- Protocalliphora coerulea: (Arthropoda, Insecta, Diptera, Protocalliphora)
- Protocystis xiphodon: (Platyhelminthes, Cestoda, Cyclophyllidea, Protocystis)
- Protoglossus koehleri: (Hemichordata, Enteropneusta, Harrimaniidae, Protoglossus)
- Protonotaria citrea: (Chordata, Aves, Passeriformes, Protonotaria)
- Protopterus: (Chordata, Sarcopterygii, Lepidosireniformes, Protopterus)
- Protopterus aethiopicus (Chordata, Sarcopterygii, Lepidosireniformes, Protopterus)
- Protoreaster lincki: (Echinodermata, Asteroidea, Valvatida, Protoreaster)
- Protoxerus stangeri: (Chordata, Mammalia, Rodentia, Protoxerus)
- Protrama caudata: (Arthropoda, Insecta, Diptera, Protrama)
- Protula intestinum: (Annelida, Polychaeta, Serpulida, Protula)
- Prunella: (Chordata, Aves, Passeriformes, Prunella)
- Prunella collaris (Chordata, Aves, Passeriformes, Prunella)
- Prunella modularis (Chordata, Aves, Passeriformes, Prunella)
- Psammechinus: (Echinodermata, Echinoidea, Camarodonta, Psammechinus)
- Psammechinus microtuberculatus (Echinodermata, Echinoidea, Camarodonta, Psammechinus)
- Psammechinus miliaris (Echinodermata, Echinoidea, Camarodonta, Psammechinus)
- Psammodromus algirus: (Chordata, Reptilia, Squamata, Psammodromus)
- Psammomys obesus: (Chordata, Mammalia, Rodentia, Psammomys)
- Psammophis: (Chordata, Reptilia, Squamata, Psammophis)
- Psarisomus dalhousiae: (Chordata, Aves, Passeriformes, Psarisomus)
- Psarocolius decumanus: (Chordata, Aves, Passeriformes, Psarocolius)
- Pselaphochernes lacertosus: (Arthropoda, Arachnida, Pseudoscorpiones, Pselaphochernes)
- Pselnophorus baptodactylus: (Arthropoda, Insecta, Lepidoptera, Pselnophorus)
- Psephurus gladius: (Chordata, Actinopterygii, Acipenseriformes, Psephurus)
- Psetta maxima: (Chordata, Actinopterygii, Pleuronectiformes, Psetta)
- Psettichthys melanostictus: (Chordata, Actinopterygii, Pleuronectiformes, Psettichthys)
- Pseudacris nigrita: (Chordata, Amphibia, Anura, Pseudacris)
- Pseudagenia carbonaria: (Arthropoda, Insecta, Hymenoptera, Pseudagenia)
- Pseudemydura umbrina: (Chordata, Reptilia, Testudines, Pseudemydura)
- Pseudemys: (Chordata, Reptilia, Testudines, Pseudemys)
- Pseudemys scripta (Chordata, Reptilia, Testudines, Pseudemys)
- Pseudibis papillosa: (Chordata, Aves, Pelecaniformes, Pseudibis)
- Pseudis: (Chordata, Amphibia, Anura, Pseudis)
- Pseudis paradoxa (Chordata, Amphibia, Anura, Pseudis)
- Pseudis bolbodactyla (Chordata, Amphibia, Anura, Pseudis)
- Pseudis caribensis (Chordata, Amphibia, Anura, Pseudis)
- Pseudis fusca (Chordata, Amphibia, Anura, Pseudis)
- Pseudis paradoxa (Chordata, Amphibia, Anura, Pseudis)
- Pseudis platensis (Chordata, Amphibia, Anura, Pseudis)
- Pseudis occidentalis (Chordata, Amphibia, Anura, Pseudis)
- Pseudobranchus striatus: (Chordata, Amphibia, Urodela, Pseudobranchus)
- Pseudocalyptomena graueri: (Chordata, Aves, Passeriformes, Pseudocalyptomena)
- Pseudococcus: (Arthropoda, Insecta, Hemiptera, Pseudococcus)
- Pseudocreobotra: (Arthropoda, Insecta, Mantodea, Pseudocreobotra)
- Pseudocreobotra wahlbergi (Arthropoda, Insecta, Mantodea, Pseudocreobotra)
- Pseudocheirus lanuginosus: (Chordata, Mammalia, Diprotodontia, Pseudocheirus)
- Pseudochelidon: (Chordata, Aves, Passeriformes, Pseudochelidon)
- Pseudochelidon eurystomina (Chordata, Aves, Passeriformes, Pseudochelidon)
- Pseudochelidon sirintarae (Chordata, Aves, Passeriformes, Pseudochelidon)
- Pseudochelidura sinuata: (Arthropoda, Insecta, Dermaptera, Pseudochelidura)
- Pseudorca crassidens: (Chordata, Mammalia, Cetacea, Pseudorca)
- Pseudoseisura lophotes: (Chordata, Aves, Passeriformes, Pseudoseisura)
- Pseudotachea: (Mollusca, Gastropoda, Stylommatophora, Pseudotachea)
- Pseudotriton montanus: (Chordata, Amphibia, Urodela, Pseudotriton)
- Pseudopeneus maculatus: (Chordata, Actinopterygii, Perciformes, Pseudopeneus)
- Psittacula: (Chordata, Aves, Psittaciformes, Psittacula)
- Psittacula cyanocephala (Chordata, Aves, Psittaciformes, Psittacula)
- Psittacula krameri (Chordata, Aves, Psittaciformes, Psittacula)
- Psittacus erithacus: (Chordata, Aves, Psittaciformes, Psittacus)
- Psococerastis gibbosus: (Arthropoda, Insecta, Psocodea, Psococerastis)
- Psocus bipunctatus: (Arthropoda, Insecta, Psocodea, Psocus)
- Psolus diomediae: (Echinodermata, Holothuroidea, Dendrochirotida, Psolus)
- Psophia: (Chordata, Aves, Gruiformes, Psophia)
- Psophia crepitans (Chordata, Aves, Gruiformes, Psophia)
- Psophia leucoptera (Chordata, Aves, Gruiformes, Psophia)
- Psophia viridis (Chordata, Aves, Gruiformes, Psophia)
- Psophus stridulus: (Arthropoda, Insecta, Orthoptera, Psophus)
- Psyche: (Arthropoda, Insecta, Lepidoptera, Psyche)
- Psyche constancella (Arthropoda, Insecta, Lepidoptera, Psyche)
- Psyche helix (Arthropoda, Insecta, Lepidoptera, Psyche)
- Psychoda phalaenoides: (Arthropoda, Insecta, Diptera, Psychoda)
- Psylla: (Arthropoda, Insecta, Hemiptera, Psylla)
- Psylla mali (Arthropoda, Insecta, Hemiptera, Psylla)
- Psylla pyricola (Arthropoda, Insecta, Hemiptera, Psylla)
- Pteridophora alberti: (Chordata, Aves, Passeriformes, Pteridophora)
- Pternistis leucoscepus: (Chordata, Aves, Galliformes, Pternistis)
- Pterocallidium trifolii: (Arthropoda, Insecta, Hemiptera, Pterocallidium)
- Pterocles: (Chordata, Aves, Pterocliformes, Pterocles)
- Pterocles alchata (Chordata, Aves, Pterocliformes, Pterocles)
- Pterocles orientalis (Chordata, Aves, Pterocliformes, Pterocles)
- Pterocnemia pennata: (Chordata, Aves, Rheiformes, Pterocnemia)
- Pterocomma populeum: (Arthropoda, Insecta, Hemiptera, Pterocomma)
- Pteroeis spinosum: (Chordata, Aves, Passeriformes, Pteroeis)
- Pteroglossus: (Chordata, Aves, Piciformes, Pteroglossus)
- Pteroglossus beauharnaesii (Chordata, Aves, Piciformes, Pteroglossus)
- Pteroglossus torquatus (Chordata, Aves, Piciformes, Pteroglossus)
- Pterognatha gigas: (Arthropoda, Arachnida, Araneae, Pterognatha)
- Pteroides griseum: (Chordata, Mammalia, Chiroptera, Pteroides)
- Pterois: (Chordata, Actinopterygii, Scorpaeniformes, Pterois)
- Pterois antennata (Chordata, Actinopterygii, Scorpaeniformes, Pterois)
- Pterois volitans (Chordata, Actinopterygii, Scorpaeniformes, Pterois)
- Pteromalus puparum: (Arthropoda, Insecta, Hymenoptera, Pteromalus)
- Pteromylaeus bovinus: (Chordata, Chondrichthyes, Myliobatiformes, Pteromylaeus)
- Pteronarcys californica: (Arthropoda, Insecta, Plecoptera, Pteronarcys)
- Pteronura brasiliensis: (Chordata, Mammalia, Carnivora, Pteronura)
- Pterophorus: (Arthropoda, Insecta, Lepidoptera, Pterophorus)
- Pterophorus monodactylus (Arthropoda, Insecta, Lepidoptera, Pterophorus)
- Pterophorus pentadactylus (Arthropoda, Insecta, Lepidoptera, Pterophorus)
- Pterophylla camellifolia: (Arthropoda, Insecta, Orthoptera, Pterophylla)
- Pterophyllum: (Chordata, Actinopterygii, Perciformes, Pterophyllum)
- Pterophyllum altum (Chordata, Actinopterygii, Perciformes, Pterophyllum)
- Pterophyllum eimekei (Chordata, Actinopterygii, Perciformes, Pterophyllum)
- Pterophyllum scalare (Chordata, Actinopterygii, Perciformes, Pterophyllum)
- Pteropodocys maxima: (Chordata, Aves, Passeriformes, Pteropodocys)
- Pteroptochos: (Chordata, Aves, Passeriformes, Pteroptochos)
- Pteroptochos megapodius (Chordata, Aves, Passeriformes, Pteroptochos)
- Pteroptochos tarnii (Chordata, Aves, Passeriformes, Pteroptochos)
- Pteropus: (Chordata, Mammalia, Chiroptera, Pteropus)
- Pteropus gouldi (Chordata, Mammalia, Chiroptera, Pteropus)
- Pteropus vampyrus (Chordata, Mammalia, Chiroptera, Pteropus)
- Pterosagitta draco: (Chaetognatha, Sagittoidea, Aphragmophora, Pterosagitta)
- Ptilinopus: (Chordata, Aves, Columbiformes, Ptilinopus)
- Ptilocercus lowi: (Chordata, Mammalia, Scandentia, Ptilocercus)
- Ptilonorhynchus violaceus: (Chordata, Aves, Passeriformes, Ptilonorhynchus)
- Ptiloris: (Chordata, Aves, Passeriformes, Ptiloris)
- Ptyas mucosus: (Chordata, Reptilia, Squamata, Ptyas)
- Ptychoptera contaminata: (Arthropoda, Insecta, Diptera, Ptychoptera)
- Ptyonoprogne rupestris: (Chordata, Aves, Passeriformes, Ptyonoprogne)
- Pudu: (Chordata, Mammalia, Artiodactyla, Pudu)
- Pudu mephistopheles (Chordata, Mammalia, Artiodactyla, Pudu)
- Pudu pudu (Chordata, Mammalia, Artiodactyla, Pudu)
- Puffinus: (Chordata, Aves, Procellariiformes, Puffinus)
- Puffinus assimilis (Chordata, Aves, Procellariiformes, Puffinus)
- Puffinus gavia (Chordata, Aves, Procellariiformes, Puffinus)
- Puffinus griseus (Chordata, Aves, Procellariiformes, Puffinus)
- Puffinus heinrothi (Chordata, Aves, Procellariiformes, Puffinus)
- Puffinus nativitatis (Chordata, Aves, Procellariiformes, Puffinus)
- Puffinus puffinus (Chordata, Aves, Procellariiformes, Puffinus)
- Puffinus tenuirostris (Chordata, Aves, Procellariiformes, Puffinus)
- Pugettia: (Arthropoda, Malacostraca, Decapoda, Pugettia)
- Pugettia producta (Arthropoda, Malacostraca, Decapoda, Pugettia)
- Pulex irritans: (Arthropoda, Insecta, Siphonaptera, Pulex)
- Pulvinaria vitis: (Arthropoda, Insecta, Hemiptera, Pulvinaria)
- Pusa: (Chordata, Mammalia, Carnivora, Pusa)
- Pusa caspica (Chordata, Mammalia, Carnivora, Pusa)
- Pusa hispida (Chordata, Mammalia, Carnivora, Pusa)
- Pusa sibirica (Chordata, Mammalia, Carnivora, Pusa)
- Putorius: (Chordata, Mammalia, Carnivora, Putorius)
- Putorius eversmanni (Chordata, Mammalia, Carnivora, Putorius)
- Putorius putorius (Chordata, Mammalia, Carnivora, Putorius)
- Putorius furo (Chordata, Mammalia, Carnivora, Putorius)
- Pycnodonte: (Mollusca, Bivalvia, Ostreida, Pycnodonte)
- Pycnogonum litorale: (Arthropoda, Pycnogonida, Pantopoda, Pycnogonum)
- Pycnonotus: (Chordata, Aves, Passeriformes, Pycnonotus)
- Pycnonotus barbatus (Chordata, Aves, Passeriformes, Pycnonotus)
- Pycnonotus cafer (Chordata, Aves, Passeriformes, Pycnonotus)
- Pycnonotus flaviventris (Chordata, Aves, Passeriformes, Pycnonotus)
- Pycnonotus jocosus (Chordata, Aves, Passeriformes, Pycnonotus)
- Pycnonotus leucogenys (Chordata, Aves, Passeriformes, Pycnonotus)
- Pygathrix hemaeus: (Chordata, Mammalia, Primates, Pygathrix)
- Pygoscelis: (Chordata, Aves, Sphenisciformes, Pygoscelis)
- Pygoscelis adeliae (Chordata, Aves, Sphenisciformes, Pygoscelis)
- Pygoscelis papua (Chordata, Aves, Sphenisciformes, Pygoscelis)
- Pylocheles: (Arthropoda, Malacostraca, Decapoda, Pylocheles)
- Pylopagurus: (Arthropoda, Malacostraca, Decapoda, Pylopagurus)
- Pyralis regalis: (Arthropoda, Insecta, Lepidoptera, Pyralis)
- Pyrausta nubilalis: (Arthropoda, Insecta, Lepidoptera, Pyrausta)
- Pyrgomorpha conica: (Arthropoda, Insecta, Orthoptera, Pyrgomorpha)
- Pyrgus: (Arthropoda, Insecta, Lepidoptera, Pyrgus)
- Pyrgus accreta (Arthropoda, Insecta, Lepidoptera, Pyrgus)
- Pyrgus armoricanus (Arthropoda, Insecta, Lepidoptera, Pyrgus)
- Pyrgus malvae (Arthropoda, Insecta, Lepidoptera, Pyrgus)
- Pyrocephalus rubinus: (Chordata, Aves, Passeriformes, Pyrocephalus)
- Pyronia: (Arthropoda, Insecta, Lepidoptera, Pyronia)
- Pyronia bathseba (Arthropoda, Insecta, Lepidoptera, Pyronia)
- Pyronia cecilia (Arthropoda, Insecta, Lepidoptera, Pyronia)
- Pyronia tithonus (Arthropoda, Insecta, Lepidoptera, Pyronia)
- Phyrophorus: (Arthropoda, Insecta, Coleoptera, Phyrophorus)
- Phyrophorus noctilucus (Arthropoda, Insecta, Coleoptera, Phyrophorus)
- Pyrosoma: (Chordata, Thaliacea, Pyrosomatida, Pyrosoma)
- Pyrosoma atlanticum (Chordata, Thaliacea, Pyrosomatida, Pyrosoma)
- Pyrosoma elegans (Chordata, Thaliacea, Pyrosomatida, Pyrosoma)
- Pyrrhocorax: (Chordata, Aves, Passeriformes, Pyrrhocorax)
- Pyrrhocorax graculus (Chordata, Aves, Passeriformes, Pyrrhocorax)
- Pyrrhocorax pyrrhocorax (Chordata, Aves, Passeriformes, Pyrrhocorax)
- Pyrrhopyge: (Arthropoda, Insecta, Lepidoptera, Pyrrhopyge)
- Pyrrhula pyrrhula: (Chordata, Aves, Passeriformes, Pyrrhula)
- Pyrrhuloxia cardinalis: (Chordata, Aves, Passeriformes, Pyrrhuloxia)
- Pytelia melba: (Chordata, Aves, Passeriformes, Pytelia)
- Python: (Chordata, Reptilia, Squamata, Python)
- Python anchietae (Chordata, Reptilia, Squamata, Python)
- Python curtus (Chordata, Reptilia, Squamata, Python)
- Python molurus (Chordata, Reptilia, Squamata, Python)
- Python regius (Chordata, Reptilia, Squamata, Python)
- Python reticulatus (Chordata, Reptilia, Squamata, Python)
- Python sebae (Chordata, Reptilia, Squamata, Python)
- Python timorensis (Chordata, Reptilia, Squamata, Python)
- Pyxicephalus adspersus: (Chordata, Amphibia, Anura, Pyxicephalus)
- Pyxipoma: (Mollusca, Gastropoda, Stylommatophora, Pyxipoma)
- Pyxis: (Chordata, Reptilia, Testudines, Pyxis)