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Nematodes Genera A to B	Family	Putative Feeding	c-p Group	Feeding Group	Functional Guild	Internal Code
Abathymermis	Mermithidae	animal parasites
Abbreviata	Physalopteridae	animal parasites				G9441mnu.htm
Abelbolla	Enchelidiidae	marine nematodes
Abirovulva	Carnoyidae	animal parasites
Ablechroiulus	Rhabditidae	bacteria feeders	1	3	b1	G2211mnu.htm
Abos	Benthimermithidae	animal parasites
Abunema	Tripylidae	predators	3	5	p3
Acanthocheilonema	Onchocercidae	animal parasites
Acantholaimus	Chromadoridae	marine nematodes				G4781mnu.htm
Acanthomicrolaimus	Microlaimidae	marine nematodes
Acanthonchus	Cyatholaimidae	marine nematodes				G522mnu.htm
Acanthopharyngoides	Desmodoridae	marine nematodes
Acanthopharynx	Desmodoridae	marine nematodes				G53212mnu.htm
Acanthorhabdias	Rhabdiasidae	animal parasites
Acanthostrongylus	Heligmonellidae	animal parasites
Acanthoxyuris	Oxyuridae	animal parasites
Acanthungella	Ungellidae	animal parasites
Acephalodorylaimus	Encholaimidae	fungus feeders	4	2	f4	G931mnu.htm
Achlysiella	Pratylenchidae	plant feeders	3	1	h3
Achromadora	Achromadoridae	eucaryote feeders	3	6	e3	G501mnu.htm
Aconchulus	Leptonchidae	fungus feeders	4	2	f4	G7792mnu.htm
Acontiolaimus	Camacolaimidae	marine nematodes				G432mnu.htm
Acontylus	Hoplolaimidae	plant feeders	3	1	h3	G001mnu.htm
Acrobeles	Cephalobidae	bacteria feeders	2	3	b2	G264mnu.htm
Acrobeloides	Cephalobidae	bacteria feeders	2	3	b2	G265mnu.htm
Acrobelophis	Cephalobidae	bacteria feeders	2	3	b2	G266mnu.htm
Acrolobus	Cephalobidae	bacteria feeders	2	3	b2	G269mnu.htm
Acromoldavicus	Elaphonematidae	bacteria feeders	2	3	b2	G2613mnu.htm
Acronema	Marimermithidae	marine parasites
Acrostichus	Diplogastridae	bacteria feeders	1	3	b1	G328mnu.htm
Acroukranicus	Cephalobidae	bacteria feeders	2	3	b2
Actarjania	Comesomatidae	marine nematodes				G5871mnu.htm
Actinca	Actinolaimidae	omnivores	5	8	o5	G765mnu.htm
Actinolaimoides	Nordiidae	omnivores	4	8	o4	G7131mnu.htm
Actinolaimus	Actinolaimidae	omnivores	5	8	o5	G763mnu.htm
Actinonema	Chromadoridae	marine nematodes
Actus	Mylonchulidae	predators	4	5	p4	G657mnu.htm
Aculonchus	Leptonchidae	fungus feeders	4	2	f4	G7792mnu.htm
Acunemella	Nordiidae	omnivores	4	8	o4	G7135mnu.htm
Adelonema	Diplopeltidae	marine nematodes
Adelphus	Desmodoridae	marine nematodes
Adenodelphis	Benthimermithidae	animal parasites
Adenolaimus	Aulolaimoididae	omnivores	4	8	o4	G920mnu.htm
Adeuchromadora	Chromadoridae	marine nematodes
Adieronema	Drilonematidae	animal parasites
Admirandus	Oncholaimidae	marine nematodes				G15210mnu.htm
Adoncholaimus	Oncholaimidae	marine nematodes				G1529mnu.htm
Adungella	Ungellidae	animal parasites
Aegialoalaimus	Aegialoalaimidae
Aelurostrongylus	Angiostrongylidae	animal parasites
Aenigmenchus	Tylopharyngidae	fungus feeders	2	2	f2
Aequalodontium	Axonolaimidae	marine nematodes
Aetholaimus	Nygolaimidae	predators	5	5	p5	G671mnu.htm
Afenestrata	Heteroderidae	plant feeders	3	1	h3	G002mnu.htm
Afractinca	Actinolaimidae	omnivores	5	8	o5	G7651mnu.htm
Afractinolaimus	Actinolaimidae	omnivores	5	8	o5	G7652mnu.htm
Africana	Heterakidae	animal paraqsites
Africanastrongylus	Haemonchidae	animal parasites
Africanema	Trefusiidae	marine nematodes
Africanthion	Thoracostomopsidae	marine predators
Afrina	Anguinidae	plant feeders	2	1	h2	G165mnu.htm
Afrodorylaimus	Dorylaimidae	omnivores	4	8	o4	G686mnu.htm
Afronygus	Nygolaimidae	predators	5	5	p5	G670mnu.htm
Agamermis	Mermithidae	animal parasites
Aglenchus	Tylenchidae	plant feeders	2	1	h2	G003mnu.htm
Agmodorus	Leptonchidae	fungus feeders	4	2	f4	G7871mnu.htm
Agriostomum	Chaberiidae	animal parasites
Agrochanus	Skrjabillanidae	animal parasites				G9416mnu.htm
Akanthepsilonema	Epsilonematidae	marine nematodes				G903mnu.htm
Akodonema	Angiostrongylidae	animal parasites				G9581mnu.htm
Akrotonus	Aporcelaimidae	omnivores	5	8	o5	G7331mnu.htm
Alaeuris	Pharyngodonidae
Alaimella	Camacolaimidae	marine nematodes
Alaimonema	Desmodoridae	marine nematodes
Alaimus	Alaimidae	bacteria feeders	4	3	b4	G631mnu.htm
Alaninema	Drilonematidae	animal parasites
Albiziaphelenchus	Aphelenchoididae	fungus feeders	2	2	f2
Algoanema	Chromadoridae	marine nematodes
Agamermis	Mermithidae	animal parasites
Alaeuris	Pharyngodonidae	animal parasites
Aliascaris	Heterocheilidae	animal parasites
Alirhabditis	Alirhabditidae	bacterial feeders	1	3	b1	G305mnu.htm
Allantonema	Allantonematidae	animal parasites
Allgenia	Linhomoidae	marine nematodes
Allintoshius	Ornithostrongylidae	animal parasites
Allodorylaimus	Qudsianematidae	predators	4	5	p4	G723mnu.htm
Alloionema	Alloionematidae	bacteria feeders	1	3	b1	G230mnu.htm
Allomermis	Mermithidae	animal parasites
Allotrichodorus	Trichodoridae	plant feeders	4	1	h3	G146mnu.htm
Allotylenchus	Tylenchidae	plant feeders	2	1	h2	G004mnu.htm
Alocostoma	Chabertiidae	animal parasites
Amblydorylaimus	Aporcelaimidae	predators	4	5	p4	G7233mnu.htm
Amidostomoides	Trichostrongylidae	animal parasites
Amidostomum	Trichostrongylidae	animal parasites
Ammotheristus	Xyalidae	marine nematodes
Amphibelondira	Belondiridae	unkmown				G7541mnu.htm
Amphibiomermis	Mermithidae	animal parasites
Amphibiophilus	Amphibiophilidae	animal parasites
Amphicephaloides	Herpetostrongylidae	animal parasites
Amphidelus	Alaimidae	bacteria feeders	4	3	b4	G632mnu.htm
Amphidomermis	Mermithidae	animal parasites
Amphidorylaimus	Dorylaimidae	omnivores	4	8	o4	G689mnu.htm
Amphimermis	Mermithidae	animal parasites				G9551mnu.htm
Amphimonhystera	Xyalidae	marine nematodes				G3831mnu.htm
Amphimonhystrella	Xyalidae	marine nematodes				G3832mnu.htm
Amphisbaenema	Criconematidae	plant feeders	3	1	h3	Cricidaemnu.htm
Amplimerlinius	Merliniidae	plant feeders	3	1	h3	G005mnu.htm
Anadorella	Thornenematidae	omnivores	5	8	o5	G7081mnu.htm
Anandranema	Allantonematidae	animal parasites
Ananus	Marimermithidae	marine parasites
Anaplectus	Plectidae	bacteria feeders	2	3	b2	G421mnu.htm
Anatonchus	Anatonchidae	predators	4	5	p4	G660mnu.htm
Anatrichosoma	Trichosomoididae	animal parasites				G9251mnu.htm
Anchobelondira	Belondiridae	unknown				G7512mnu.htm
Ancistronema	Chabertiidae	animal parasites
Ancylostoma	Ancylostomatidae	animal parasites				G960mnu.htm
Andersonstrongylus	Angiostrongylidae	animal parasites
Andrassya	Andrassyidae	marine nemayodes				G592mnu.htm
Angiocaulus	Angiostrongylidae	animal parasites
Angiostoma	Angiostomatidae	animal parasites				G235mnu.htn
Angiostrongylus	Angiostrongylidae	animal parasites				G958mnu.htm
Anguillonema	Neotylenchidae	fungus feeders	2	2	f2	G1490mnu.htm
Anguilluloides	Panagrolaimidae	bacteria feeders	1	3	b1
Anguimonhystera	Monhysteridae	marine nematodes
Anguina	Anguinidae	plant feeders	2	1	h2	G006mnu.htm
Anguinoides	Camacolaimidae	marine nematodes
Angulocirrus	Molineidae	animal parasites
Angusticaecum	Ascarididae	animal parasite
Anisakis	Anisakidae	animal parasites				G910mnu.htm
Anivanema	Leptosomatidae	marine nematodes
Anomalostoma	Hystrignathidae	animal parasites
Anomonema	Leptolaimidae	marine nematodes				G4331mnu.htm
Anomyctus	Aphelenchoididae	fungus feeders	2	2	f2	G2121mnu.htm
Anonchus	Aphanolaimidae	bacteria feeders	3	3	b3	G4421mnu.htm
Anoplostoma	Anoplostomatidae	marine nematodes				G854mnu.htm
Anoplostrongylus	Molineidae	animal parasites				G357mnu.htm
Antarctenchus	Tylenchidae	plant feeders	2	1	h2	G007mnu.htm
Antarcticonema	Desmoscolecidae	marine nematodes				G9082mnu.htm
Antarctylus	Hoplolaimidae	plant feeders	3	1	h3	G008mnu.htm
Antechinostrongylus	Angiostrongylidae	animal parasites
Antholaimus	Qudsianematidae	predators	4	5	p4	G7711mnu.htm
Anticoma	Anticomidae	marine nematodes
Anticomopsis	Anticomidae	marine nematodes
Anticyathis	Linhomoeidae	marine nematodes
Anticyclus	Linhomoidae	marine nematodes
Antomicron	Leptolaimidae	marine nematodes				G4332mnu.htm
Antopus	Anticomidae	marine nematodes
Anuronema	Hystrignathidae	animal parasites
Aorolaimus	Hoplolaimidae	plant feeders	3	1	h3	G009mnu.htm
Aoruroides	Thelastomatidae	animal parasites
Aorurus	Thelastomatidae	animal parasites
Aphanolaimus	Aphanolaimidae	bacteria feeders	3	3	b3	G442mnu.htm
Aphanonchus	Aphanolaimidae	bacteria feeders	3	3	b3	G443mnu.htm
Aphasmatylenchus	Hoplolaimidae	plant feeders	3	1	h3	G010mnu.htm
Aphelenchoides	Aphelenchoididae	fungus feeders	2	2	f2	G011mnu.htm
Aphelenchulus	Allantonematidae	animal parasites
Aphelenchus	Aphelenchidae	fungus feeders	2	2	f2	G012mnu.htm
Aplectana	Cosmocercidae	animal parasites
Apodontium	Axonolaimidae	marine nematodes
Apodorylaimus	Dorylaimidae	omnivores	4	8	o4	G6861mnu.htm
Apoleptonchus	Leptonchidae	fungus feeders	4	2	f4	G7831mnu.htm
Aponcholaimus	Linhomoidae	marine nematodes
Aponema	Microlaimidae	marine nematodes				G9152mnu.htm
Aporcedorus	Aporcelaimidae	omnivores	5	8	o5	G7371mnu.htm
Aporcelaimellus	Aporcelaimidae	omnivores	5	8	o5	G733mnu.htm
Aporcelaimium	Aporcelaimidae	omnivores	5	8	o5	G734mnu.htm
Aporcelaimoides	Aporcelaimidae	omnivores	5	8	o5	G7361mnu.htm
Aporcelaimus	Aporcelaimidae	omnivores	5	8	o5	G735mnu.htm
Aporcelinus	Aporcelaimidae	omnivores	5	8	o5	G769mnu.htm
Aporcella	Aporcelaimidae	omnivores	5	8	o5	G737mnu.htm
Apratylenchoides	Pratylenchidae	plant feeders	3	1	h3	G013mnu.htm
Apratylenchus	Pratylenchidae	plant feeders	3	1	h3	G1441mnu.htm
Aprocta	Aproctidae	animal parasites
Aproctoides	Aproctidae	animal parasites
Aproctonema	Tetradonematidae	animal parasites
Aprutides	Aphelenchoididae	fungus feeders	2	2	f2	G212mnu.htm
Aquatides	Nygolaimidae	predators	5	5	p5	G674mnu.htm
Araeolaimus	Diplopeltidae	marine nematodes				G450mnu.htm
Araguanema	Drilonematidae	animal parasites				G1516mnu.htm
Arboritynchus	Tylenchidae	plant feeders	2	1	h2	G0301mnu.htm
Archeostrongylus	Syngamidae	animal parasites
Archepsilonema	Epsilonematidae	marine nematodes				G905mnu.htm
Arctidorylaimus	Qudsianematidae	predators	4	5	p4	G7232mnu.htm
Arctiplectus	Plectidae	bacteria feeders	2	3	b2
Arganema	Leptonchidae	fungus feeders	4	2	f4	G780mnu.htm
Arnfieldia	Trichostrongylidae	animal parasites
Aronema	Enchelidiidae	marine nematodes
Arostichus	Diplogastridae	bacteria feeders				G328mnu.htm
Arthrostoma	Ancylostomatidae	animal parasites
Artigasia	Hystrignathidae	animal parasites
Arundelia	Chabertiidae	animal parasites
Aruroides	Thelastomatidae	animal parasites
Ascaridia	Ascaridiidae	animal parasites
Ascaris	Ascarididae	animal parasites				G937mnu.htm
Ascarophis	Cystidicolidae	animal parasites				G9721mnu,htm
Ascarophisnema	Cystidicolidae	animal parasites
Ascolaimus	Axonolaimidae	marine nematodes
Ashworthus	Haemonchidae	animal parasites
Asperotobrilus	Tobrilidae	predators	3	5	p3
Aspicularis	Heteroxynematidae	animal parasites
Aspidonema	Bunonematidae	bacteria feeders	1	3	b1	G254mnu.htm
Astomonema	Siphonolaimidae	marine nematodes				G404mnu.htm
Asymmelaimus	Cosmosomatidae	marine nematodes
Asymmetracantha	Mackerrastrongylidae	animal parasites
Asymmetrella	Oncholaimidae	marine nematodes
Atalodera	Heteroderidae	plant feeders	3	1	h3	G014mnu.htm
Atetylenchus	Tylenchidae	plant feeders	2	1	h2	G015mnu.htm
Athernema	Mydonomidae	fungus feeders	4	2	f4	G7801mnu.htm
Athusia	Drilonematidae	animal parasites
Atractis	Atractidae	animal parasites
Atrochromadora	Chromadoridae	marine nematodes
Atylenchus	Tylenchidae	plant feeders	2	1	h2	G016mnu.htm
Auanema	Rhabditidae	bacteria feeders	1	3	b1	G899mnu.htm
Aulachnema	Angiostomatidae	animal parasites				G2351mnu.htm
Aulolaimoides	Aulolaimoididae	omnivores	3	8	o3	G921mnu.htm
Aulolaimus	Aulolaimidae	bacteria feeders	3	3	b3	G561mnu.htm
Australodorus	Longidoridae	plant feeders	5	1	h5	G069mnu.htm
Australonema	Marimermithidae	marine parasites
Austrostrongylus	Herpetostrongylidae	animal parasites				G358mnu.htm
Austroxyuris	Oxyuridae	animal parasites
Avellaria	Viannaiidae	animal parasites
Avioserpens	Dracunculidae	animal parasites
Axodorylaimellus	Dorylaimellidae	plant feeders	5	1	h5	G7521mnu.htm
Axonchium	Belondiridae	plant feeders	5	1	h5	G751mnu.htm
Axonchoides	Belondiridae	unknown				G754mnu.htm
Axonolaimus	Axonolaimidae	marine nematodes				G4502mnu.htm
Bakeria	Molineidae	animal parasites				G9641mnu.htm
Bakernema	Criconematidae	plant feeders	3	3	h3	G017mnu.htm
Baladorylaimus	Dorylaimidae	omnivores	4	8	o4	G683mnu.htm
Baldwinema	Panagrolaimidae	bacteria feeders	1	3	b1	G287mnu.htm
Baqriella	Qudsianematidae	predators	4	5	p4	G7234mnu.htm
Barbonema	Leptosomatidae	marine nematodes				G5891mnu.htm
Baruscapillaria	Capillariidae	animal parasites				G9491mnu.htm
Basiria	Tylenchidae	plant feeders	2	1	h2	G019mnu.htm
Basilaphelenchus	Aphelenchoididae	fungus feeders	2	2	f2	G2194mnu.htm
Basiliophora	Tylenchidae	plant feeders	2	1	h2
Basirienchus	Tylenchidae	plant feeders	2	1	h2	G019mnu.htm
Basirotyleptus	Leptonchidae	fungus feeders	4	2	f4	G7823mnu.htm
Bastiania	Bastianiidae	bacteria feeders	3	3	b3	G618mnu.htm
Bathyepsilonema	Epsilonematidae	marine nematodes				G906mnu.htm
Bathyeurystomina	Enchelidiidae	marine nematodes
Bathylaimella	Linhomoeidae	marine nematodes
Bathylaimus	Tripyloididae
Bathynema	Benthimermithidae	animal parasites
Bathynox	Microlaimidae	marine nematodes
Bathyodontus	Bathyodontidae	predators	4	5	p5	G641mnu.htm
Batrachocamallanus	Camallanidae	animal parasites
Batrachonema	Amphibiophilidae	animal parasites
Batrachostrongylus	Molineidae	animal parasites
Baujardia	Panagrolaimidae	bacteria feeders	1	3	b1	G289mnu.htm
Baylisascaris	Ascarididae	animal parasite				G938mnu.htm
Bealius	Sphaerulariidae	fungus feeders
Beaninema	Rhabdochonidae	animal parasites
Belaxellus	Belondiridae	unknown				G7542mnu.htm
Belbolla	Enchelidiidae	marine nematodes				G1500mnu.htm
Bellodera	Heteroderidae	plant feeders	3	1	h3	G020mnu.htm
Belondirella	Belondiridae	plant feeders	5	1	h5	G7573mnu.htm
Belondira	Belondiridae	plant feeders	5	1	h5	G757mnu.htm
Belonolaimus	Dolichodoridae	plant feeders	3	1	h1	G022mnu.htm
Bendiella	Selachinematidae	marine nematodes				G4914mnu.htm
Benthimermis	Benthimermithidae	animal parasites
Bernardius	Enchelidiidae	omnivores	4	8	o4	G1501mnu.htm
Bertzuckermania	Leptonchidae	fungus feeders	4	2	f4	G7824mnu.htm
Betulodera	Heteroderidae	plant feeders	3	1	h3	G0281mnu.htm
Beveridgea	Chabertiidae	animal parasites
Beveridgiella	Herpetostrongylidae	animal parasites
Biacantha	Molineidae	animal parasites
Biarmifer	Cyatholaimidae	marine nematodes
Bicirronema	Bicirronematidae	bacteria feeders	2	3	b2	G918mnu.htm
Bidentostomum	Strongylidae	animal parasites
Bidigicaudata	Molineidae	animal parasites
Bilobodera	Heteroderidae	plant feeders	3	1	h3
Bilobostoma	Thelastomatidae	animal parasites
Binema	Travassosinematidae	animal parasites				G97510mnu.htm
Biogastranema	Cooperiidae	animal parasites
Bispiculum	Tetradonematidae	animal parasites
Bitylenchus	Telotylenchidae	plant feeders	3	1	h3	G170mnu.htm
Blandicephalonema	Criconematidae	plant feeders	3	1	h3	G023mnu.htm
Blatticola	Thelastomatidae	animal parasites				G9752mnu.htm
Blattophila	Thelastomatidae	animal parasites
Blazionema	Thelastomatidae	animal parasites
Bloberinema	Thelastomatidae	animal parasites
Boehmiella	Boehmiellidae	animal parasites				G360mnu.htm
Bolbolaimus	Microlaimidae	marine nematodes
Bolbonema	Desmodoridae	marine nematodes				G53213mnu.htm
Boleodorus	Tylenchidae	plant feeders	2	1	h2	G024mnu.htm
Bongersia	Leptosomatidae	marine nematodes				G5892mnu.htm
Boomerangia	Tylenchulidae	plant feeders
Boracelanema	Hystrignathidae	animal parasites
Borellostrongylus	Molineidae	animal parasites
Boreolaimus	Qudsianematidae	predators	4	5	p4	G7231mnu,htm
Boreomicrolaimoides	Linhomoeidae	marine nematodes
Boucherius	Meyliidae	marine nematodes				G414mnu.htm
Bourgelatia	Chabertiidae	animal parasites
Bourgelatioides	Chabertiidae	animal parasites
Bovienema	Allantonematidae	animal parasites
Boydinema	Syngamidae	animal parasites
Brachonchulus	Mylonchulidae	predators	4	5	p4	G649mnu.htm
Brachydorus	Dolichodoridae	plant feeders	3	1	h3	G025mnu.htm
Bradylaimus	Desmodoridae	marine nematodes
Bradynema	Allantonematidae	animal parasites				G3941mnu.htm
Bradypostrongylus	Molineidae	animal parasites
Brasilaimus	Actinolaimidae	omnivores	4	8	o4	G764mnu.htm
Brevibucca	Brevibuccidae	bacteria feeders	1	3	b1
Brevimulticaecum	Heterocheilidae	animal parasites				G1088mnu.htm
Brevistoma	Panagrolaimidae	bacteria feeders	1	3	b1
Brevistriata	Heligmonellidae	animal parasites
Brevitobrilus	Tobrilidae	predators	3	5	p3
Brittonema	Actinolaimidae	omnivores	4	8	o4	G7653mnu.htm
Bronchonema	Dictyocaulidae	animal parasites
Brugia	Onchocercidae	animal parasites				G985mnu.htm
Brumptaemilius	Carnoyidae	animal parasites
Brygoonema	Molineidae	animal parasites
Buckleyaractis	Atractidae	animal parasites
Buckleynema	Quimperiidae	animal parasites
Buetschlinema	Rhabditidae	bacteria feeders	1	3	b1	G2223mnu.htm
Bullaenema	Belondiridae	unknown				G7574mnu.htm
Bulbodacnitis	Cucullanidae	animal parasites
Bunomystrongylus	Heligmonellidae	animal parasites
Bunonema	Bunonematidae	bacteria feeders	1	3	b1	G251mnu.htm
Bunostomus	Ancylostomatidae	animal parasites
Burmanema	Drilonematidae	animal parasites
Bursadera	Heteroderidae	plant feeders	3	1	h3	G026mnu.htm
Bursaphelenchus	Aphelenchoididae	plant feeders	2	1	h2	G145mnu.htm
Bursilla	Rhabditidae	bacteria feeders	1	3	b1	G226mnu.htm
Butlerius	Diplogastridae	bacteria feeders	1	3	b1	G323mnu.htm