Alidea Pseudophyllidea [now Bothriocephalidea and Linolenic acid methyl ester Diphyllobothriidea] Spathebothriidea Strigeida Strongylida Tetrabothriidea Aphelenchi Dactylogyrinea Discocotylinea Hexatyli Mazocraeinea Microcotylinea Oxyuri Tetraonchinea Allocreadioidea Ancylostomatoidea Aphelenchoidea Ascaridoidea Clinostomoidea Cosmoceroidea Cyclocoeloidea Diaphanocephaloidea Diplogasteroidea Diplogastroidea Ditomoidea Drilonematoidea Echinostomatoidea Gymnophalloidea Hemiuroidea Heterakoidea Iotonchioidea Lepocreadioidea MermithoideaGibson D et al.superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily loved ones household family family members loved ones loved ones household household family members loved ones family family members household loved ones family members family family members family members family family members family household family loved ones familyMetastrongyloidea Microphalloidea Notocotyloidea Opisthorchioidea Oxyuroidea Paramphistomoidea Plagiorchioidea Rhabditoidea Schistosomoidea MedChemExpress ML281 Seuratoidea Sphaerularioidea Strongyloidea Subuluroidea Tetradonematoidea Thelastomatoidea Trichostrongyloidea Troglotrematoidea Zoogonoidea Acanthocolpidae Acanthostomidae [now syn. of Cryptogonimidae] Acoleidae Acrobothriidae Acuariidae Agfidae Alirhabditidae Allantonematidae Allocreadiidae Amabiliidae Amidostomidae Amphilinidae Ancylostomatidae Ancyrocephalidae Angiostomatidae Angiostrongylidae Anguillicolidae Anisakidae Anoplocephalidae Apororhynchidae Aproctidae Arhythmacanthidae Ascarididae Ascaridiidae AspidogastridaeFau Europaea: Helminths (Animal Parasitic)household household family family family members family loved ones household household family members family family loved ones family family family members loved ones family family members family household family members household loved ones family members household family members household family loved ones family family members family loved ones family members household family members household loved ones loved ones household family familyAtractidae Auridistomidae Azygiidae Bolbocephalodidae [treated as 
syn. of Strigeidae, but now recognised] Bothriocephalidae Brachycoeliidae Brachylaimidae Bucephalidae Bunocotylidae Camallanidae Capillariidae Capsalidae Carabonematidae Caryophyllaeidae Catenotaeniidae Cathaemasiidae Centrorhynchidae Cephalochlamydidae Cephalogonimidae Chabertiidae Cladorchiidae Clinostomidae Collyriclidae Cosmocercidae Crenosomatidae Cryptogonimidae Cucullanidae Cyathocotylidae Cyclocoelidae Cystidicolidae Cystoopsidae Dactylogyridae Daniconematidae Davaineidae Derogenidae Deropristidae [treated as syn. of Acanthocolpidae, but now recognised] Desmidocercidae Diaphanocephalidae Diclybothriidae Dicrocoeliidae Dictyocaulidae Dilepididae DioctophymatidaeGibson D et al.family members household loved ones household family family loved ones loved ones family members loved ones household household household family members loved ones loved ones loved ones loved ones family family family members household family family family members loved ones loved ones family members household family family household family members family 
members household family members loved ones household loved ones family members loved ones family familyDioecocestidae Diphyllobothriidae Diplectanidae Diplodiscidae Ditomidae Diplotriaenidae Diplozoidae Dipylidiidae Discocotylidae Dracunculidae Drilonematidae Echinorhynchidae Echinostomatidae PubMed ID:http://jpet.aspetjournals.org/content/139/1/42 Ektaphelenchidae Entaphelenchidae Eucotylidae Eumegacetidae Fasciolidae Faustulidae Filariidae Filaroididae Gastrodiscidae Gastrothylacidae Gigantorhynchidae Gthostomatidae Gongylonematidae Gorgoderidae Gymnophallidae Gyrodactylidae Habronematidae Haplometridae [syn. of Plagiorchiidae] Haploporidae Haplanchnidae Hartertii.Alidea Pseudophyllidea [now Bothriocephalidea and Diphyllobothriidea] Spathebothriidea Strigeida Strongylida Tetrabothriidea Aphelenchi Dactylogyrinea Discocotylinea Hexatyli Mazocraeinea Microcotylinea Oxyuri Tetraonchinea Allocreadioidea Ancylostomatoidea Aphelenchoidea Ascaridoidea Clinostomoidea Cosmoceroidea Cyclocoeloidea Diaphanocephaloidea Diplogasteroidea Diplogastroidea Ditomoidea Drilonematoidea Echinostomatoidea Gymnophalloidea Hemiuroidea Heterakoidea Iotonchioidea Lepocreadioidea MermithoideaGibson D et al.superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily superfamily family members household household loved ones family members family members family members family family members family family family members loved ones family family family members family members family members family loved ones family household loved ones family members familyMetastrongyloidea Microphalloidea Notocotyloidea Opisthorchioidea Oxyuroidea Paramphistomoidea Plagiorchioidea Rhabditoidea Schistosomoidea Seuratoidea Sphaerularioidea Strongyloidea Subuluroidea Tetradonematoidea Thelastomatoidea Trichostrongyloidea Troglotrematoidea Zoogonoidea Acanthocolpidae Acanthostomidae [now syn. of Cryptogonimidae] Acoleidae Acrobothriidae Acuariidae Agfidae Alirhabditidae Allantonematidae Allocreadiidae Amabiliidae Amidostomidae Amphilinidae Ancylostomatidae Ancyrocephalidae Angiostomatidae Angiostrongylidae Anguillicolidae Anisakidae Anoplocephalidae Apororhynchidae Aproctidae Arhythmacanthidae Ascarididae Ascaridiidae AspidogastridaeFau Europaea: Helminths (Animal Parasitic)family loved ones family members family family members loved ones family members family members family family loved ones household family loved ones household loved ones household family members loved ones family members family members family loved ones family members household loved ones household household household family family members family members household household family family members family loved ones household loved ones loved ones family familyAtractidae Auridistomidae Azygiidae Bolbocephalodidae [treated as syn. of Strigeidae, but now recognised] Bothriocephalidae Brachycoeliidae Brachylaimidae Bucephalidae Bunocotylidae Camallanidae Capillariidae Capsalidae Carabonematidae Caryophyllaeidae Catenotaeniidae Cathaemasiidae Centrorhynchidae Cephalochlamydidae Cephalogonimidae Chabertiidae Cladorchiidae Clinostomidae Collyriclidae Cosmocercidae Crenosomatidae Cryptogonimidae Cucullanidae Cyathocotylidae Cyclocoelidae Cystidicolidae Cystoopsidae Dactylogyridae Daniconematidae Davaineidae Derogenidae Deropristidae [treated as syn. of Acanthocolpidae, but now recognised] Desmidocercidae Diaphanocephalidae Diclybothriidae Dicrocoeliidae Dictyocaulidae Dilepididae DioctophymatidaeGibson D et al.family members family loved ones loved ones loved ones loved ones loved ones family members family family members household family members family family members loved ones loved ones family members household family members family household loved ones family members household loved ones loved ones household household loved ones loved ones family members family loved ones family family members loved ones family loved ones family members family members household loved ones familyDioecocestidae Diphyllobothriidae Diplectanidae Diplodiscidae Ditomidae Diplotriaenidae Diplozoidae Dipylidiidae Discocotylidae Dracunculidae Drilonematidae Echinorhynchidae Echinostomatidae PubMed ID:http://jpet.aspetjournals.org/content/139/1/42 Ektaphelenchidae Entaphelenchidae Eucotylidae Eumegacetidae Fasciolidae Faustulidae Filariidae Filaroididae Gastrodiscidae Gastrothylacidae Gigantorhynchidae Gthostomatidae Gongylonematidae Gorgoderidae Gymnophallidae Gyrodactylidae Habronematidae Haplometridae [syn. of Plagiorchiidae] Haploporidae Haplanchnidae Hartertii.