| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Aphelenchidae | Nematode | Aphelenchus avenae | ![]() |
| Aphelenchoididae | Red Ring Nematode | Aphelenchoides cocophilus | ![]() |
| Paraphelenchidae | Nematode | Paraphelenchus myceliophthorus | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Anisakidae | Intestinal Nematode | Anisakis simplex | ![]() |
| Ascarididae | Nematode | Toxocara cati | ![]() |
| Ascaridiidae | Parasitic Roundworm | Ascaridia galli | ![]() |
| Cosmocercidae | Nematode | Probstmayria bengalensis | ![]() |
| Cucullanidae | Nematode | Cucullanus austropacificus | ![]() |
| Heterakidae | Nematode | Heterakis vesicularis | ![]() |
| Maupasinidae | Nematode | Maupasina seissi | ![]() |
| Oxyuridae | Pinworm | Enterobius vermicularis | ![]() |
| Toxocaridae | Large Roundworm | Neoascaris vitulorum | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Camallanidae | Parasitic Nematode | Procamallanus pacificus | ![]() |
| Philometridae | Parasitic Nematode | Philometra fasciati | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Cylindrocorporidae | Nematode | Myctolaimus neolongistoma | ![]() |
| Diplogasteridae | Nematode | Allodiplogaster sudhausi | ![]() |
| Diplogasteroididae | Nematode | Dirhabdilaimus leuckarti | ![]() |
| Neodiplogasteridae | Nematode | Diplenteron colobocercus | ![]() |
| Odontopharyngidae | Nematode | Odontopharynx longicaudata | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Pharyngodonidae | Parasitic Nematode | Skrjabinodon trimorphi | ![]() |
| Rhigonematidae | Parasitic Nematode | Dudekemia alpinensis | ![]() |
| Thelastomatidae | Parasitic Nematode | Heth hamatus | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Agfidae | Parasitic Nematode | Agfa flexilis | ![]() |
| Alirhabditidae | Nematode | Alirhabditis indica | ![]() |
| Alloionematidae | Nematode | Alloionema similis | ![]() |
| Brevibuccidae | Nematode | Brevibucca saprophaga | ![]() |
| Bunonematidae | Nematode | Bunonema richtersi | ![]() |
| Cephalobidae | Nematode | Chiloplacus symmetricus | ![]() |
| Elaphonematidae | Nematode | Elaphonema mirabile | ![]() |
| Heterohabditidae | Nematode | Heterohabditis bacteriophora | ![]() |
| Heterorhabditidae | Nematode | Heterorhabditis indica | ![]() |
| Odontorhabditidae | Nematode | Cheilorhabditis dacchensis | ![]() |
| Panagrolaimidae | Nematode | Turbatrix aceti | ![]() |
| Pangrolaimidae | Nematode | Panagrolaimus hygrophilus | ![]() |
| Pterygorhabditidae | Nematode | Pterygorhabditis punctata | ![]() |
| Rhabdiasidae | Nematode | Angiostoma lamotheargumedoi | ![]() |
| Rhabditidae | Nematode | Caenorhabditis elegans | ![]() |
| Robertiidae | Nematode | Robertia leiperi | ![]() |
| Steinernematidae | Nematode | Steinernema carpocapsae | ![]() |
| Strongyloididae | Human Pathogenic Parasitic Roundworm | Strongyloides stercoralis | ![]() |
| Syrphonematidae | Nematode | Alloionema similis | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Acuariidae | Nematode | Acuaria europaea | ![]() |
| Anguillicolidae | Nematode | Anguillicola crassus | ![]() |
| Cystidicolidae | Nematode | Moravecnema segonzaci | ![]() |
| Drilonematidae | Nematode | Siconema diducuncinum | ![]() |
| Gnathostomatidae | Nematode | Echinocephalus pseudouncinatus | ![]() |
| Gongylonematidae | Nematode | Gongylonema pulchrum | ![]() |
| Habronematidae | Nematode | Habronema muscae | ![]() |
| Onchocercidae | Nematode | Dirofilaria immitis | ![]() |
| Physalopteridae | Nematode | Proleptus acutus | ![]() |
| Setariidae | Nematode | Dipetalonema spirocauda | ![]() |
| Spirocercidae | Nematode | Spirocerca lupi | ![]() |
| Spiruridae | Nematode | Mastophorus muris | ![]() |
| Thelaziidae | Nematode | Thelazia callipaeda | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Amidostomatidae | Nematode | Amidostomum acutum | ![]() |
| Ancylostomatidae | Old World Hookworm | Ancylostoma duodenale | ![]() |
| Angiostrongylidae | Cat Lungworm | Aelurostrongylus abstrusus | ![]() |
| Cloacinidae | Nematode | Labiostrongylus contiguus | ![]() |
| Crenosomatidae | Lungworm | Crenosoma striatum | ![]() |
| Dictyocaulidae | Lungworm | Dictyocaulus viviparus | ![]() |
| Filaroididae | Lungworm | Oslerus osleri | ![]() |
| Heligosomidae | Nematode | Nippostrongylus brasiliensis | ![]() |
| Herpetostrongylidae | Nematode | Paraustrostrongylus trichosuri | ![]() |
| Metastrongylidae | Nematode | Metastrongylus elongatus | ![]() |
| Molineidae | Nematode | Nematodirus battus | ![]() |
| Ornithostrongylidae | Nematode | Ornithostrongylus quadriradiatus | ![]() |
| Pharyngostrongylidae | Nematode | Rugopharynx moennigi | ![]() |
| Protostrongylidae | Goat Lungworm | Protostrongylus rufescens | ![]() |
| Pseudaliidae | Lungworm | Skrjabinalius guevarai | ![]() |
| Skrjabingylidae | Nematode | Skrjabingylus nasicola | ![]() |
| Strongylidae | Nematode | Strongylus vulgaris | ![]() |
| Syngamidae | Gapeworm | Syngamus trachea | ![]() |
| Trichostrongylidae | Nematode | Trichostrongylus calcaratus | ![]() |
| Uncinariidae | New World Hookworm | Necator americanus | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Allantonematidae | Insect-parasitic Nematode | Howardula phyllotretae | ![]() |
| Anguinidae | Stem Nematode | Ditylenchus dipsaci | ![]() |
| Belonolaimidae | Sting Nematode | Belonolaimus longicaudatus | ![]() |
| Criconematidae | Ring Nematode | Mesocriconema xenoplax | ![]() |
| Dolichodoridae | Nematode | Neodolichodorus persiangulfus | ![]() |
| Fergusobiidae | Nematode | Fergusobia tumifaciens | ![]() |
| Heteroderidae | Beet Cyst Eelworm | Heterodera schachtii | ![]() |
| Hoplolaimidae | Lance Nematode | Hoplolaimus galeatus | ![]() |
| Iotonchiidae | Nematode | Iotonchium fungorum | ![]() |
| Neotylenchidae | Nematode | Deladenus siricidicola | ![]() |
| Pratylenchidae | Root Lesion Nematode | Pratylenchus penetrans | ![]() |
| Sphaerulariidae | Nematode | Sphaerularia bombi | ![]() |
| Tylenchidae | Nematode | Tylenchus devastatrix | ![]() |
| Tylenchulidae | Citrus Nematode | Tylenchulus semipenetrans | ![]() |