Coronocyclus labiatus Cylicodontophorus bicoronatus 81 Cylicostephanus goldi 100 Cyathostomum catinatum 74 Cylicocyclus insignis Strongylidae 100 Poteriostomum imparidentatum 99 Triodontophorus brevicauda 100 Strongylus vulgaris Macropicola ocydromi 100 Hypodontus macropi 97 92 Oesophagostomum dentatum Cloacinidae Chabertia ovina Chabertiidae 88 Ancylostoma duodenale 85 Uncinaria sanguinis Ancylostomatidae Rhabditina 79 Necator americanus Bunostomum phlebotomum 92 Syngamus trachea Syngamidae Haemonchus contortus 100 Mecistocirrus digitatus 79 Haemonchidae Rhabditomorpha Trichostrongylus axei 100 Teladorsagia circumcincta 97 Trichostrongylidae Marshallagia marshalli 75 92 Cooperia oncophora Cooperiidae Nippostrongylus brasiliensis 100 71 Heligmonellidae Nematodirus oiratianus Molineidae Heligmosomoides polygyrus Heligmosomatidae 77 abstrusus vasorum Angiostrongylidae Parafilaroides normani Filaroididae 73 100 100 Metastrongylus pudendotectus Metastrongylidae Protostrongylus rufescens Protostrongylidae Dictyocaulus viviparus Oscheius chongmingensis Dictyocaulidae 93 Litoditis marina 98 Rhabditidae Caenorhabditis elegans 90 Heterorhabditis bacteriophora Heterorhabditidae 78 Pristionchus pacificus 100 Tylenchina Koerneria sudhausi Neodiplogasteridae Diplogasteromorpha 99 Bursaphelenchus xylophilus 78 Aphelenchoides besseyi Aphelenchoididae Tylenchomorpha Aphelenchus avenae 79 Aphelenchidae (Aphelenchoidea) Panagrellus redivivus 100 Halicephalobus gingivalis 78 Panagrolaimidae Parastrongyloides trichosuri Strongyloides stercoralis Strongyloididae Panagrolaimomorpha Rhabditophanes sp. KR3021 Alloionematidae Steinernema carpocapsae Steinernematidae 96 Ascaris lumbricoides 99 Parascaris univalens 100 Baylisascaris procyonis 89 Ascarididae Toxascaris leonina 99 Toxocara malaysiensis 99 Toxocaridae Ascaridomorpha Anisakis simplex 99 70 Pseudoterranova azarasi 99 Anisakidae Contracaecum rudolphii Ortleppascaris sinensis Ascarididae 71 Gnathostoma spinigerum Gnathostomatidae Gnathostomatomorpha Cucullanus robustus Cucullanidae 82 100 Heterakis gallinarum Heterakidae Ascaridomorpha Ascaridia columbae Ascaridiidae Spirurina 73 Rhigonema thysanophora 100 Ruizia karukerae Rhigonematidae Rhigonematomorpha 100 Dracunculus medinensis Dracunculidae 100 Philometroides sanguineus Philometridae Dracunculoidea Camallanus cotti Camallanidae Loa loa 91 Chandlerella quiscali Brugia malayi 96 100 Wuchereria bancrofti Onchocercidae 84 99 Acanthocheilonema viteae 99 Litomosoides sigmodontis 100 Onchocerca volvulus Spiruromorpha Dirofilaria immitis 98 83 Setaria digitata Setariidae 100 Gongylonema pulchrum 84 Gongylonematidae 100 Spirocerca lupi Thelazia callipaeda Thelaziidae Heliconema longissimum Physalopteridae 73 72 Oxyuris equi Oxyuridae 78 100 Aspiculuris tetraptera Heteroxynematidae Passalurus ambiguus 97 Syphacia obvelata Oxyuridomorpha 100 Wellcomia siamensis Oxyuridae Tylenchina 94 Enterobius vermicularis 100 Globodera ellingtonae 93 Heterodera glycines Heteroderidae 99 Radopholus similis Pratylenchidae Tylenchomorpha 100 100 Meloidogyne chitwoodi Meloidogynidae (Tylenchoidea) Pratylenchus vulnus Pratylenchidae 100 Acrobeles complexus Acrobeloides varius Cephalobidae Cephalobomorpha

Plectus acuminatus Plectidae Plectida Enoplea 100 100 Hexamermis agrotis 74 Agamermis sp. BH-2006 100 Thaumamermis cosgrovei Mermithida Romanomermis culicivorax 81 95 Strelkovimermis spiculatus 100 Longidorus vineacola 94 100 Paralongidorus litoralis Dorylaimida Xiphinema americanum 100 Trichinella spiralis Trichuris trichiura Trichinellida Limulus polyphemus Arthropod Lithobius forficatus outgroups 0.1 substitutions/site