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Nematodes Genera P to R	Family	Putative Feeding	c-p Group	Feeding Group	Functional Guild	Internal Code
Pachydorylaimus	Tylencholaimidae	fungus feeders	4	2	f4	G7903mnu.htm
Pakira	Plectidae	bacteria feeders	2	3	b2
Paleothelastoma	Thelastomatidae	animal parasites
Panagrellus	Panagrolaimidae	bacteria feeders	1	3	b1	G281mnu.htm
Panagrobelium	Panagrolaimidae	bacteria feeders	1	3	b1
Panagrobelus	Panagrolaimidae	bacteria feeders	1	3	b1	G282mnu.htm
Panagrolaimus	Panagrolaimidae	bacteria feeders	1	3	b1	G283mnu.htm
Panagrolobus	Cephalobidae	bacteria feeders	2	3	b2	G2618mnu.htm
Panagroteratus	Cephalobidae	bacteria feeders	2	3	b2
Pancreatonema	Rhabdochonidae	animal parasites
Pandolaimus	Pandolaimidae	marine nematodes
Panduripharynx	Chromadoridae	marine nematodes
Papillabrum	Hystrignathidae	animal parasites
Papillonema	Desmodoridae	marine nematodes				G5327mnu.htm
Papillostrongylus	Chabertiidae	animal parasites
Papuadorus	Nordiidae	omnivores	4	8	o4	G7141mnu.htm
Papuastrongylus	Herpetostrongylidae	animal parasites
Parabostrichus	Desmodoridae	marine nematodes
Parabronema	Habronematidae	animal parasites
Parabronetna	Spiruridae	animal parasites
Paracamallanus	Camallanidae	animal parasites
Paracameronia	Thelastomatidae	animal parasites
Paracanthonchus	Cyatholaimidae	marine nematodes
Paracephalobus	Cephalobidae	bacteria feeders	2	3	b2
Paracomesoma	Comesomatidae	marine nematodes				G588mnu.htm
Paracooperia	Cooperiidae	animal parasites
Paracooperioides	Cooperiidae	animal parasites
Paracrassibucca	Anatonchidae	predators	4	5	p4	G662mnu.htm
Paracrenosoma	Crenosomatidae	animal parasites
Paracrobeles	Cephalobidae	bacteria feeders	2	3	b2	G2641mnu.htm
Paractinolaimoides	Actinolaimidae	predators	5	5	p5	G7613mnu.htm
Paractinolaimus	Actinolaimidae	predators	5	5	p5	G761mnu.htm
Paracuaria	Acuariidae	animal parasites
Paracucullanellus	Cucullanidae	animal parasites
Paracyatholaimoides	Cyatholaimidae	marine nematodes
Paracyatholaimus	Cyatholaimidae	marine nematodes				G521mnu.htm
Paracylicolaimus	Leptosomatidae	marine nematodes
Paradeletrocephalus	Deletrocephalidae	animal parasites
Paradesmodora	Desmodoridae	marine nematodes
Paradicelis	Drilonematidae	animal parasites
Paradolichodera	Heteroderidae	plant feeders	3	1	h3
Paradorylaimus	Dorylaimidae	omnivores	4	8	o4	G6863mnu.htm
Paradraconema	Draconematidae	marine nematodes				G5385mnu.htm
Paraegialoalaimus	Linhomoeidae	marine nematodes
Paraethmolaimus	Ethmolaimidae	brackish/marine nematodes
Paraeuchromadora	Chromadoridae	marine nematodes
Paraeudesmoscolex	Desmoscolecidae	marine nematodes
Paraeurostomina	Enchelidiidae	marine nematodes
Parafilaria	Filariidae	animal parasites				G9852mnu.htm
Parafilaroides	Filaroididae	animal parasites
Paragendria	Quimperiidae	animal parasites
Paragletylenchus	Parasitylenchidae	animal parasites
Paragonionchus	Xyalidae	marine nematodes
Paragraphidium	Molineidae	animal parasites
Parahadronchus	Iotonchidae	predators	4	5	p4	G6592mnu.htm
Paraheligmonella	Heligmonellidae	animal parasites
Paraheligmonelloides	Heligmonellidae	animal parasites
Paraheligmonina	Heligmonellidae	animal parasites
Paraheterotyphilum	Heterocheilidae	animal parasites
Parahistiostrongylus	Molineidae	animal parasites
Paraichthyocephalus	Ichthyocephalidae	animal parasites
Paraiotonchium	Iotonchiidae	animal parasites
Paralabiostrongylus	Chabertiidae	animal parasites
Paralellocoilas	Desmodoridae	marine nematodes
Paraleptonchus	Leptonchidae	fungus feeders	4	2	f4	G7844mnu.htm
Paraleptosomatides	Leptosomatidae	marine nematodes
Paraleptus	Physalopteridae	animal parasites
Paralinhomoeus	Linhomoeidae	marine nematodes
Paralongicyatholaimus	Cyatholaimidae	marine nematodes	3	6	e3
Paralongidorus	Longidoridae	plant feeders	5	1	h5	G095mnu.htm
Paralibyostrongylus	Cooperiidae	animal parasites
Paramacropostrongylus	Chabertiidae	animal parasites
Paramarylynnia	Cyatholaimidae	marine nematodes
Paramerlinius	Merliniidae	plant feeders	3	1	h3	G169mnu.htm
Paramesacanthion	Thoracostomopsidae	marine predators
Paramesonchium	Comesomatidae	marine nematodes
Paramicrolaimus	Paramicrolaimidae	marine nematodes
Paramidostomum	Trichostrongylidae	animal parasites
Paramonohystera	Xyalidae	marine nematodes
Paramononchus	Mononchidae	predators	4	5	p4
Paramphidelus	Amphidelidae	bacteria feeders	4	3	b4	G633mnu.htm
Paramphimonhystrella	Xyalidae	marine nematodes
Paramylonchulus	Mylonchulidae	predators	4	5	p4	G6531mnu.htm
Paranticoma	Anticomidae	marine nematodes
Paranygolaimus	Nygolaimidae	predators	5	5	p5	G6731mnu.htm
Paraodontophora	Axonolaimidae	marine nematodes
Paraoigolaimella	Diplogastridae	bacteria feeders	1	3	b1	G326mnu.htm
Paraoxybelondira	Swangeriidae	predators	5	5	p5	G7534mnu.htm
Paraoxydirus	Swangeriidae	predators	5	5	p5	G7535mnu.htm
Parapalus	Paraxonchiidae	omnivores	4	8	o4	G7313mnu.htm
Paraphanoderma	Phanodermatidae	marine nematodes
Paraphanodermopsis	Phanodermatidae	marine nematodes
Paraphanolaimus	Aphanolaimidae	bacteria feeders	3	3	b3	G441mnu.htm
Parapharyngodon	Pharyngodonidae	animal parasites				G995mnu.htm
Parapharyngostrongylus	Chabertiidae	animal parasites
Paraphelenchus	Aphelenchidae	fungus feeders	2	2	f2	G0121mnu.htm
Paraphilometroides	Philometridae	animal parasites
Parapinnanema	Chromadoridae	marine nematodes
Paraplectonema	Leptolaimidae	marine nematodes				G434mnu.htm
Parapomponema	Cyatholaimidae	marine nematodes
Parapoteriostomum	Strongylidae	animal parasites
Parapristionchus	Diplogastridae	bacteria feeders	1	3	b1
Paraqudsiella	Swangeriidae	omnivores				G9014mnu.htn
Paraquimperia	Quimperiidae	animal parasites
Pararaeolaimus	Diplopeltidae	marine nematodes
Pararhabdonema	Cooperiidae	animal parasites
Pararhyssocolpus	Nordiidae	omnivores	4	8	o4	G7151mnu.htm
Pararotylenchus	Hoplolaimidae	plant feeders	3	1	h3	G096mnu.htm
Pararugopharynx	Chabertiidae	animal parasites
Parasabanema	Heligmonellidae	animal parasites
Parasaveljevia	Thoracostomopsidae	marine predators
Parascaris	Ascarididae
Parascolaimus	Axonolaimidae	marine nematodes
Paraseuratum	Quimperiidae	animal parasites
Parasitaphelenchus	Aphelenchoididae	predators	2	5	p2	G2171mnu.htm
Parasitodiplogaster	Diplogastridae	bacterial feeders	1	3	b1	G3211mnu.htm
Parasitorhabditis	Rhabditidae	bacteria feeders	1	3	b1
Parasitylenchoides	Allantonematidae	animal parasites
Parasitylenchus	Allantonematidae	animal parasites				G395mnu.htm
Parasphaerolaimus	Sphaerolaimidae	marine nematodes
Paraspiralatus	Spirocercidae	animal parasites
Parastomachoglossa	Actinolaimidae	omnivores	5	8	o5	G7654mnu.htm
Parastomonema	Siphonolaimidae
Parastrongyloides	Strongyloididae	animal parasites
Parastrongylus	Angiostrongylidae	animal parasites
Paraterschellingia	Siphonolaimidae
Parathelandros	Oxyuridae	animal parasites
Paratimminema	Thornenematidae	omnivores	5	8	o5	G7085mnu.htn
Paratimmus	Mydonomidae	omnivores	4	8	o4	G7882mnu.htm
Paratobrilus	Tobrilidae	predators	3	5	p3
Paratractis	Atractidae
Paratrichodorus	Trichodoridae	plant feeders	4	1	h4	G097mnu.htm
Paratrichosoma	Trichosomoididae	animal parasites
Paratricoma	Desmoscolecidae	marine nematodes
Paratripyla	Tripylidae	predators	3	5	p3	G623mnu.htm
Paratrophurus	Telotylenchidae	plant feeders	3	1	h3	G172mnu.htm
Paratuerkiana	Leptosomatidae	marine nematodes
Paratylencholaimus	Tylencholaimellidae	fungus feeders	4	2	f4	G793mnu.htm
Paratylenchus	Tylenchulidae	plant feeders	2	1	h2	G099mnu.htm
Paraustrostrongylus	Herpetostrongylidae	animal parasites
Paravulvus	Nygolaimidae	predators	5	5	p5	G677mnu.htm
Paraxiphidorus	Longidoridae	plant feeders	5	1	h5	G176mnu.htm
Paraxonchium	Paraxonchiidae	omnivores	4	8	o4	G731mnu.htm
Parazoniolaimus	Chabertiidae	animal parasites
Parelaphostrongylus	Protosrongylidae	animal parasites
Parelzalia	Xyalidae	marine nematodes
Parenoplus	Thoracostomopsidae	marine predators
Pareudesmoscolex	Desmoscolecidae	marine nematodes
Pareudiplogaster	Neodiplogastridae	eucaryote feeders	1	6	e1	G335mnu.htm
Parhadjelia	Habronematidae	animal parasites
Parkellus	Mononchidae	predators	4	5	p4	G6551mnu.htm
Paroctonchus	Oncholaimidae	marine nematodes
Parodontophora	Axonolaimidae	marine nematodes
Paroigolaimella	Diplogastridae	bacteria feeders	1	3	b1	G326mnu.htm
Paronchocerca	Oswaldofilariidae	animal parasites
Paroriverutus	Nordiidae	omnivores	4	8	o4	G7133mnu.htm
Parostertagia	Trichostrongylidae	animal parasites
Paroxybelondira	Swangeriidae	omnivores
Paroxydirus	Swangeriidae	omnivores
Passalidophila	Hystrignathidae	animal parasites
Passalurus	Oxyuridae	animal parasites
Passeristrongylus	Ornithostrongylidae	animal parasites
Patagoniella	Ungellidae	animal parasites
Pateracephalonema	Criconematidae	plant feeders	3	1	h3	G100mnu.htm
Patricialina	Herpetostrongylidae	animal parasites
Paurodontella	Sphaerulariidae	insect associate	3	7	d3	G392mnu.htm
Paurodontoides	Sphaerulariidae	insect associate	3	7	d3
Paurodontus	Sphaerulariidae	insect associates
Pearsonema	Capillariidae	animal parasites
Pelagonema	Oncholaimidae	marine nematodes
Pelicitus	Onchocercidae	animal parasites
Pellioditis	Rhabditidae	bacteria feeders	1	3	b1	G222mnu.htm
Pelodera	Rhabditidae	bacteria feeders	1	3	b1	G228mnu.htm
Peltamigratus	Hoplolaimidae	bacteria feeders	1	3	b1	G0091mnu.htm
Penjatinema	Cephalobidae	bacteria feeders	2	3	b2	G2617mnu.htm
Pennisia	Muspiceidae
Penzancia	Xyalidae	marine nematodes				G384mnu.htm
Peramelistrongylus	Trichostrongylidae	animal parasites
Perepsilonema	Epsilonematidae	marine nematodes				G9023mnu.htm
Perilinhomoeus	Linhomoeidae	marine nematodes
Perioplectus	Plectidae	bacteria feeders	2	3	b2
Peritrachelius	Anisakidae	animal parasites				G9102mnu.htm
Perodira	Drilonematidae	animal parasites
Perspira	Desmodoridae	marine nematodes
Petrovinema	Strongylidae	animal parasites
Phacochoerostrongylus	Chabertiidae	animal parasites
Phaeoncholaimus	Oncholaimidae	marine nematodes
Phalacronema	Hystrignathidae	animal parasites
Phallaxonchium	Belondiridae	plant feeders	5	1	h5	G759mnu.htm
Phanoderma	Phanodermatidae	marine nematodes
Phanodermella	Phanodermatidae	marine nematodes
Phanodermopsis	Phanodermatidae	marine nematodes				G5955mnu.htm
Pharurus	Pseudaliidae	animal parasites
Pharyngodon	Pharyngodonidae	animal parasites
Pharyngonema	Pharyngonematidae	animal parasites
Pharyngostrongylus	Chabertiidae	animal parasites
Phascolostrongylus	Chabertiidae	animal parasites
Phasmarhabditis	Rhabditidae	bacteria feeders	1	3	b1	G223mnu.htm
Phellonema	Tylencholaimellidae	fungus feeders	4	2	f4	G7921mnu.htm
Philometra	Philometridae	animal parasites				G942mnu.htm
Philometroides	Philometridae	animal parasites
Philonema	Dracunculidae	animal parasites
Phocascaris	Anisakidae	animal parasites
Phyllolaimus	Cyatholaimidae	marine nematodes
Physaloptera	Physalopteridae	animal parasites				G944mnu.htm
Physalopteroides	Physalopteridae	animal parasites
Physocephalus	Spirocercidae	animal parasites
Pierrickia	Cosmosomatidae	marine nematodes
Pilosinema	Leptosomatidae	marine nematodes
Pingus	Quimperiidae	animal parasites
Piscicapillaria	Capillariidae	animal parasites
Pithecostrongylus	Molineidae	animal parasites
Placodira	Cephalobidae	bacteria feeders	2	3	b2	G2619mnu.htm
Platonova	Leptosomatidae	marine nematodes
Platycoma	Leptosomatidae	marine nematodes
Platycomopsis	Leptosomatidae	marine nematodes
Plectonchus	Brevibuccidae	bacteria feeders	1	3	b1	G301mnu.htm
Plectus	Plectidae	bacteria feeders	2	3	b2	G422mnu.htm
Plesioungella	Ungellidae	animal parasites
Pleurotylenchus	Tylenchidae	plant feeders	2	1	h2	G102mnu.htm
Plutellonema	Drilonematidae	animal parasites
Pneumocaulus	Protosrongylidae	animal parasites
Pneumonema	Rhabdiasidae	animal parasites
Pneumospiruria	Pneumospiruridae	animal parasites
Pneumostrongylus	Protosrongylidae	animal parasites
Poekilostrongylus	Molineidae	animal parasites
Poikilolaimus	Rhabditidae	bacteria feeders	1	3	b1	G2221mnu.htm
Polenchus	Tylenchidae	plant feeders	2	1	h2	G103mnu.htm
Polkepsilonema	Epsilonematidae	marine nematodes				G9025mnu.htm
Polygastrophora	Enchelidiidae	marine nematodes
Polyonchulus	Mylonchulidae	predators	4	5	p4
Polysigma	Desmodoridae	marine nematodes
Pomponema	Cyatholaimidae	marine nematodes
Pongogius	Oxyuridae	animal parasites
Pontonema	Oncholaimidae	marine nematodes				G1528mnu.htm
Popovastrongylus	Chabertiidae	animal parasites
Porocoma	Xenellidae	marine nematodes
Poronemella	Crateronematidae	omnivores	4	8	o4	G693mnu.htm
Porrocaecum	Heterocheilidae	animal parasites
Porternema	Belondiridae					G7576mnu.htm
Postamphidelus	Amphidelidae	bacteria feeders	4	3	b4
Potensaphelenchus	Aphelenchoididae	Predators	2	5	p2	G2172mnu.htm
Poteriostomum	Strongylidae	animal parasites
Potorostrongylus	Chabertiidae	animal parasites
Potoroxyuris	Oxyuridae	animal parasites
Practinocephalus	Actinolaimidae	omnivores	5	8	o5	G7655mnu.htm
Praeacanthonchus	Cyatholaimidae	marine nematodes
Pratinema	Allantonematidae	animal parasites
Pratylenchoides	Merliniidae	plant feeders	3	1	h3	G104mnu.htm
Pratylenchus	Pratylenchidae	plant feeders	3	1	h3	G105mnu.htm
Prestwoodia	Crenosomatidae	animal parasites
Prionchulellus	Iotonchidae
Prionchuloides	Mylonchulidae	predators	4	5	p4
Prionchulus	Mononchidae	predators	4	5	p4	G651mnu.htm
Prismatolaimus	Prismatolaimidae	bacteria feeders	3	3	b3	G581mnu.htm
Pristionchus	Diplogastridae	predators	1	5	p1	G333mnu.htm
Proatractis	Atractidae
Probelondira	Belondiridae	plant feeders	5	1	h5	G7571mnu.htm
Probstmayria	Atractidae
Procamacolaimus	Camacolaimidae	marine nematodes
Procamallanus	Camallanidae	animal parasites				G7974mnu.htm
Procephalobus	Panagrolaimidae	bacteria feeders	1	3	b1	G288mnu.htn
Prochromadora	Chromadoridae	marine nematodes	3	3	b3	G472mnu.htm
Prochromadorella	Chromadoridae	marine nematodes				G4721mnu.htm
Procynostrongylus	Angiostrongylidae	animal parasites
Procyrnea	Habronematidae	animal parasites				G9461mnu.htm
Prodesmodora	Desmodoridae	marine nematodes				G531mnu.htm
Prodontorhabditis	Rhabditidae	bacteria feeders	1	3	b1
Prodorylaimium	Dorylaimidae	omnivores	4	8	o4	G701mnu.htm
Prodorylaimus	Dorylaimidae	omnivores	4	8	o4	G702mnu.htm
Profilarinema	Trichostrongylidae	animal parasites
Progreeffiella	Greeffiellidae
Proleptonchoides	Leptonchidae	fungus feeders	4	2	f4	G7843mnu.htm
Proleptonchus	Leptonchidae	fungus feeders	4	2	f4	G784mnu.htm
Proleptus	Physalopteridae	animal parasites
Prolinhomoeus	Linhomoeidae	marine nematodes
Promiconchus	Anatonchidae	predators	4	5	p4
Promonhystera	Xyalidae	marine nematodes
Promumtazium	Tylencholaimidae	fungus feeders	4	2	f4	G7962mnu.htm
Pronygolaimus	Nygolaimidae	predators	5	5	p5	G6732mnu.htn
Prooncholaimus	Oncholaimidae	marine nematodes				G1525mnu.htm
Propanagrolaimus	Panagrolaimidae	bacteria feeders	1	3	b1	G2831mnu.htm
Proparasitylenchus	Allantonematidae	animal parasites
Propharyngodon	Thelastomatidae	animal parasites
Proplatycoma	Leptosomatidae	marine nematodes
Propomponema	Cyatholaimidae	marine nematodes
Prorhynchonema	Xyalidae	marine nematodes
Prosphaerolaimus	Linhomoeidae	marine nematodes
Prosungulonema	Rhabdochonidae	animal parasites
Prothallonema	Sphaerulariidae	insect associates	3	7	d3	G393mnu.htm
Prothornema	Thornenematidae	omnivores	5	8	o5
Protocylindrocorpus	Cylindrocorporidae	insect associates
Protodesmoscolex	Desmoscolecidae	marine nematodes
Protodorylaimus	Dorylaimidae	omnivores	4	8	o4	G709mnu.htm
Protorhabditis	Rhabditidae	bacteria feeders	1	3	b1	G2214mnu.htm
Protospirura	Spiruridae	animal parasites
Protostrongylus	Protosrongylidae	animal parasites
Prototricoma	Desmoscolecidae	marine nematodes
Protrellus	Thelastomatidae	animal parasites				G9751mnu.htm
Protricoma	Desmoscolecidae	marine nematodes
Protricomoides	Desmoscolecidae	marine nematodes
Protylenchus	Allantonematidae	animal parasites
Psammomermis	Mermithidae	animal parasites
Psammonema	Desmodoridae	marine nematodes
Pselionema	Ceramonematidae	marine nematodes
Pseudabbreviata	Physalopteridae	animal parasites
Pseudacrobeles	Cephalobidae	bacteria feeders	2	3	b2	G2611mnu.htm
Pseudalius	Pseudaliidae	animal parasites
Pseudamidostomum	Trichostrongylidae	animal parasites
Pseudaphelenchus	Aphelenchoididae	fungus feeders	2	2	f2	G2192mnu.htm
Pseudaprocta	Aproctidae
Pseudaraeolaimus	Diplopeltidae	marine nematodes
Pseudechinotheristus	Xyalidae	marine nematodes
Pseudhalenchus	Anguinidae	plant feeders	2	2	h2	G106mnu.htm
Pseudoaulolaimus	Aulolaimidae	bacteria feeders	3	3	b3	G562mnu.htm
Pseudocapillaria	Capillariidae	animal parasites
Pseudocella	Leptosomatidae	marine nematodes
Pseudocheironchus	Selachinematidae	marine nematodes
Pseudochromadora	Desmodoridae	marine nematodes
Pseudodelphis	Guyanemidae	animal parasites				G9411mnu.htm
Pseudodesmicola	Thelastomatidae	animal parasites
Pseudodesmodora	Desmodoridae	marine nematodes
Pseudodiplogasteroides	Pseudiplogasteroididae	insect parasites
Pseudoheligmosomum	Heligmonellidae	animal parasites
Pseudolella	Axonolaimidae	marine nematodes
Pseudometachromadora	Desmodoridae	marine nematodes
Pseudonchus	Desmodoridae	marine nematodes
Pseudophilometroides	Dracunculidae	animal parasites
Pseudophysaloptera	Physalopteridae	animal parasites
Pseudoplatycoma	Leptosomatidae	marine nematodes
Pseudoproleptus	Cystidicolidae	animal parasites
Pseudorictularia	Physalopteridae	animal parasites
Pseudosteineria	Xyalidae	marine nematodes
Pseudostertagia	Cooperiidae	animal parasites
Pseudoterranova	Anisakidae	animal parasites				G9103mnu.htm
Pseudoterschellingia	Linhomoeidae	marine nematodes				G402mnu.htm
Pseudotheristus	Monhysteridae
Pseudotriceratonema	Leptosomatidae	marine nematodes
Pseudotylencholaimus	Tylencholaimidae	fungus feeders	4	2	f4
Pseudoxyo	Hystrignathidae	animal parasites
Psilenchus	Tylenchidae	plant feeders	2	1	h2	G107mnu.htm
Psyllotylenchus	Parasitylenchidae	animal parasites
Pternepsilonema	Epsilonematidae	marine nematodes				G9026mnu.htm
Pterotylenchus	Tylenchidae	plant feeders	2	1	h2	G108mnu.htm
Pterygodermatites	Rictulariidae	animal parasites
Pterygonema	Ceramonematidae	marine nematodes
Pterygorhabditis	Pterygorhabditidae	bacteria feeders	1	3	b1	G842mnu.htm
Pterygorhitis	Pterygorhabditidae	bacteria feeders	1	3	b1	G8421mnu.htm
Ptycholaimellus	Chromadoridae	marine nematodes				G375mnu.htm
Pudica	Heligmonellidae	animal parasites
Pulcrascaris	Anisakidae	animal parasites
Pulmostrongylus	Angiostrongylidae	animal parasites
Punchaulus	Aphelenchoididae	fungus feeders	2	1	f2
Punctodera	Heteroderidae	plant feeders	3	1	h3	G109mnu.htm
Punctodora	Chromadoridae	marine nematodes	3	3	b3	G473mnu.htm
Punctoleptus	Leptonchidae	fungus feeders	4	2	f4
Pungentella	Nordiidae	omnivores	4	8	o4	G716mnu.htm
Pungentus	Nordiidae	omnivores	4	8	o4	G712mnu.htm
Quadricoma	Desmoscolecidae	marine nematodes
Quadricomoides	Desmoscolecidae	marine nematodes
Quasiamidostomum	Trichostrongylidae	animal parasites
Quasitobrilus	Tobrilidae	predators	3	5	p3
Qudsialemellus	Belondiridae
Qudsiella	Swangeriidae	omnivores	4	8	o4	G7532mnu.htm
Quentinstrongylus	Heligmonellidae	animal parasites
Quilonia	Strongylidae	animal parasites
Quinisulcius	Telotylenchidae	plant feeders	3	1	h3	G138mnu.htm
Radopholoides	Pratylenchidae	plant feeders	3	1	h3	G112mnu.htm
Radopholus	Pratylenchidae	plant feeders	3	1	h3	G111mnu.htm
Rafflesius	Qudsianematidae	predators	4	5	p4	G7251mnu.htm
Ragenema	Molineidae	animal parasites
Raillietnema	Cosmocercidae	animal parasites
Ransomnema	Ransomnematidae	animal parasites
Ransomus	Chabertiidae	animal parasites
Raonema	Carnoyidae	animal parasites
Raphidascaris	Raphidascarididae	animal parasites				G1084mnu.htm
Raphidascaroides	Raphidascarididae	animal parasites				G1085mnu.htm
Raritobrilus	Tobrilidae	predators	3	5	p3
Rasheedia	Physalopteridae	animal parasites
Rattustrongylus	Heligmonellidae	animal parasites
Rauschia	Molineidae	animal parasites
Retrotheristus	Xyalidae	marine nematodes
Rauschivyngylus	Angiostrongylidae	animal parasites
Rauschtineria	Oxyuridae	animal parasites
Retrotheristus	Xyalidae	marine nematodes
Rhabdias	Rhabdiasidae	animal parasites
Rhabditella	Rhabditidae	bacteria feeders	1	3	b1	G2216mnu.htm
Rhabditidoides	Diplogastridae	bacteria feeders	1	3	b1	G330mnu.htm
Rhabditis	Rhabditidae	bacteria feeders	1	3	b1	G221mnu.htm
Rhabditoides	Rhabditidae	bacteria feeders	1	3	b1	G2213mnu.htm
Rhabditolaimus	Diplogastridae
Rhabditonema	Rhabditidae	bacteria feeders	1	3	b1
Rhabditophanes	Alloionematidae	bacteria feeders	1	3	b1	G231mnu.htm
Rhabditostomum	Chabertiidae	animal parasites
Rhabdochona	Rhabdochonidae	animal parasites				G997mnu.htm
Rhabdodemania	Rhabdodemaniidae	marine nematodes
Rhabdolaimus	Rhabdolaimidae	bacteria feeders	3	3	b3	G461mnu.htm
Rhabpanus	Rhabditidae	bacteria feeders	1	3	b1	G2211mnu.htm
Rhadinema	Rhadinematidae	marine nematodes				G4321mnu.htm
Rhigonema	Rhigonematidae	animal parasites				G977mnu.htm
Rhinema	Monoposthiidae
Rhinobothrium	Gnathostomatidae	animal parasites
Rhinodorylaimus	Dorylaimidae	omnivores	5	8	o5	G688mnu.htm
Rhips	Chromadoridae	marine nematodes
Rhizonemella	Heteroderidae	plant feeders	3	1	h3	G114mnu.htm
Rhodolaimus	Bunonematidae	bacteria feeders	1	3	b1	G252mnu.htm
Rhomborhabditis	Rhabditidae	bacteria feeders	1	3	b1	G2281mnu.htm
Rhynchonema	Xyalidae	marine nematodes				G389mnu.htm
Rhyssocolpus	Nordiidae	omnivores	4	8	o4	G715mnu.htm
Richtersia	Richtersiidae	marine nematodes				G466mnu.htm
Rictularia	Rictulariidae	animal parasites
Ridgellus	Tylenchidae	plant feeders	2	1	h2	G0891mnu.htm
Riouxgolvania	Muspiceidae
Ritenbenkia	Leptosomatidae	marine nematodes
Robbea	Desmodoridae	marine nematodes				G536mnu.htm
Robertdollfusa	Robertdollfusidae	animal parasites
Robertia	Thelastomatidae	animal parasites
Robustnema	Xyalidae	marine nematodes
Robustodorus	Aphelenchoididae	fungus feeders	2	2	f2	G167mnu.htm
Robustostrongylus	Haemonchidae	animal parasites
Rodentocaulus	Angiostrongylidae	animal parasites
Rodentogamus	Syngamidae	animal parasites
Romanomermis	Mermithidae	animal parasites
Rondonema	Carnoyidae	animal parasites
Rondonia	Atractidae	animal parasites				G866mnu.htm
Roqueus	Swangeriidae	omnivores
Rostrulium	Tylencholaimidae	fungus feeders	4	2	f4
Rotylenchulus	Hoplolaimidae	plant feeders	3	1	h3	G116mnu.htm
Rotylenchus	Hoplolaimidae	plant feeders	3	1	h3	G117mnu.htm
Ruamowhitia	Enoplidae	marine nematodes
Rubzonema	Neotylenchidae	fungus feeders	2	2	f2
Ruehmaphelenchus	Aphelenchoididae	fungus feeders	2	2	f2	G2141mnu.htm
Rugonema	Chabertiidae	animal parasites
Rugopharynx	Chabertiidae	animal parasites
Rugoster	Chronogastridae	bacteria feeders	3	3	b3
Rugostrongylus	Chabertiidae	animal parasites