MilliBase
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- Myriapoda (13 583)
- Class Chilopoda (6)
- Class Diplopoda (12 940)
- Subclass Chilognatha (12 779)
- Infraclass Helminthomorpha (11 992)
- Subterclass Colobognatha (298)
- Subterclass Eugnatha (11 693)
- Superorder Juliformia (4 368)
- Order Julida (1 359)
- Superfamily Blaniuloidea C. L. Koch, 1847 (84)
- Superfamily Juloidea Leach, 1814 (1 079)
- Family Julidae Leach, 1814 (1 072)
- Subfamily Archiulinae Attems, 1926
- Subfamily Buchneriinae Verhoeff, 1941
- Subfamily Calyptophyllinae Verhoeff, 1930
- Subfamily Campodinae Bollman, 1893
- Subfamily Cylindroiulinae Verhoeff, 1930
- Subfamily Deuteroiulinae Verhoeff, 1896
- Subfamily Heteroiulinae Verhoeff, 1930
- Subfamily Julinae Leach, 1814 (616)
- Tribe Brachyiulini Verhoeff, 1909 (144)
- Tribe Cylindroiulini Verhoeff, 1930 (18)
- Tribe Julini Leach, 1814 (147)
- Genus Euxinoiulus Lohmander, 1936 (1)
- Genus Haplophyllum Verhoeff, 1897 (1)
- Genus Haplopodoiulus Verhoeff, 1898 (1)
- Genus Hungaroiulus Lohmander, 1936
- Genus Julus Linnaeus, 1758 (134)
- Species Julus abbreviatus Mikan, 1834
- Species Julus acriculus Karsch, 1881
- Species Julus adensameri Verhoeff, 1897 accepted as Leptoiulus trilobatus Verhoeff, 1894
- Species Julus affinis Brandt, 1840
- Species Julus affinis (Lucas, 1846)
- Species Julus africanus Brölemann, 1897 accepted as Cylindroiulus truncorum (Silvestri, 1896)
- Species Julus aimatopodus Risso, 1826 accepted as Ommatoiulus sabulosus (Linnaeus, 1758)
- Species Julus albipes C. L. Koch, 1838 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Julus albovittatus Verhoeff, 1894 accepted as Leptoiulus belgicus (Latzel, 1884)
- Species Julus aleator Pocock, 1895
- Species Julus alemannicus Verhoeff, 1892 accepted as Leptoiulus alemannicus (Verhoeff, 1892)
- Species Julus alexandrae Evsyukov, 2016
- Species Julus algerinus Brölemann, 1897 accepted as Cylindroiulus algerinus (Brölemann, 1898)
- Species Julus allobrogicus Brölemann, 1896 accepted as Cylindroiulus allobrogicus (Brölemann, 1896)
- Species Julus alpivagus Verhoeff, 1897 accepted as Hypsoiulus alpivagus (Verhoeff, 1897)
- Species Julus americaeborealis Palisot, 1817 accepted as Narceus americanus (Palisot de Beauvouis, 1817)
- Species Julus americanus Palisot de Beauvouis, 1817 accepted as Narceus americanus (Palisot de Beauvouis, 1817)
- Species Julus amurensis Gerstfeldt, 1859 accepted as Pacifiiulus amurensis (Gerstfeldt, 1859)
- Species Julus anceps Eisen & Stuxberg, 1868 accepted as Ommatoiulus sabulosus (Linnaeus, 1758)
- Species Julus anguinus Karsch, 1880
- Species Julus annulata Say, 1821 accepted as Cambala annulata (Say, 1821)
- Species Julus annulatus Say, 1821 accepted as Cambala annulata (Say, 1821)
- Species Julus annulatus Risso, 1826
- Species Julus apenninorum Brölemann, 1897 accepted as Cylindroiulus apenninorum Brölemann, 1897
- Species Julus apiculatus Mikan, 1834
- Species Julus appendiculatus Brandt, 1841 accepted as Spirostreptus appendiculatus (Brandt, 1841)
- Species Julus araneoides Linnaeus, 1758 accepted as Scutigera coleoptrata (Linnaeus, 1758)
- Species Julus araneoides Pallas, 1772
- Species Julus arboreus Latreille, 1804
- Species Julus armatus Gerstfeldt, 1859 accepted as Craspedosoma armatum (Gerstfeldt, 1859)
- Species Julus atratus Girard, 1853
- Species Julus attenuatus Brandt, 1840 accepted as Harpagophora attenuata (Brandt, 1840)
- Species Julus atticus (Karsch, 1888)
- Species Julus audouini (Brandt, 1833) accepted as Spirostreptus audouini Brandt, 1833
- Species Julus aurozonatus Berlese, 1886 accepted as Ommatoiulus aurozonatus (Berlese, 1886)
- Species Julus austriacus Latzel, 1884 accepted as Megaphyllum (Megaphyllum) austriacum (Latzel, 1884)
- Species Julus azarovae Mikhaljova, 2009
- Species Julus aztecus De Saussure, 1859 accepted as Anadenobolus aztecus (De Saussure, 1859)
- Species Julus baconyensis Verhoeff, 1899 accepted as Leptoiulus baconyensis (Verhoeff, 1899)
- Species Julus bahiensis Brandt, 1841 accepted as Spirostreptus bahiensis (Brandt, 1841)
- Species Julus baldensis Verhoeff, 1896 accepted as Leptoiulus riparius (Verhoeff, 1894)
- Species Julus balearicus L. Koch, 1881 accepted as Megaphyllum (Megaphyllum) unilineatum (C. L. Koch, 1838)
- Species Julus barbatus Verhoeff, 1908 accepted as Ophyiulus chilopogon (Latzel, 1884)
- Species Julus barroisi Porat, 1893 accepted as Amblyiulus barroisi (Porat, 1893)
- Species Julus beauvoaisii Gervais, 1837
- Species Julus beauvoisii Gervais, 1847 accepted as Nesobolus beauvoisii (Gervais, 1847)
- Species Julus belgicus Latzel, 1844 accepted as Leptoiulus belgicus (Latzel, 1884)
- Species Julus bermudanus Chamberlin, 1920
- Species Julus bertkaui Verhoeff, 1896 accepted as Leptoiulus bertkaui (Verhoeff, 1896)
- Species Julus bicolor Mikan, 1834
- Species Julus bicuspidatus Brandt, 1840 accepted as Spirostreptus bicuspidatus (Brandt, 1840)
- Species Julus bilineatus C. L. Koch, 1838
- Species Julus bimarginatus Gervais, 1847
- Species Julus bioculatus Gervais & Goudot, 1844
- Species Julus bipulvillatus Gervais, 1847 accepted as Remulopygus javanicus (Brandt, 1841)
- Species Julus birmanicus Pocock, 1893 accepted as Nepalmatoiulus birmanicus (Pocock, 1893)
- Species Julus birmanus Pocock
- Species Julus bjelasnicensis Verhoeff, 1898 accepted as Microiulus bjelasnicensis (Verhoeff, 1898)
- Species Julus blainvillei Leguillou, 1841 accepted as Acanthiulus blainvillei (Leguillou, 1841)
- Species Julus blaniuloides Verhoeff, 1893 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Julus blasioi Fanzago, 1880
- Species Julus boleti C. L. Koch, 1847 accepted as Cylindroiulus boleti (C. L. Koch, 1847)
- Species Julus botta Gervais, 1837
- Species Julus bourtieri (Brölemann)
- Species Julus bouvieri Brölemann, 1896 accepted as Cylindroiulus parisiorum (Brölemann & Verhoeff, 1896)
- Species Julus boveanus Gervais, 1837
- Species Julus bovinus Attems, 1900
- Species Julus brandti Berlese, 1886 accepted as Ommatoiulus brandti (Berlese, 1886)
- Species Julus braueri Verhoeff, 1895 accepted as Leptoiulus montivagus (Latzel, 1884)
- Species Julus brevicornis Brandt, 1840 accepted as Spirostreptus brevicornis (Brandt, 1840)
- Species Julus brevilobatus Verhoeff, 1897 accepted as Leptoiulus brevilobatus (Verhoeff, 1897)
- Species Julus britannicus Verhoeff, 1891 accepted as Cylindroiulus britannicus (Verhoeff, 1891)
- Species Julus broelemanni Verhoeff, 1895 accepted as Leptoiulus broelemanni Verhoeff, 1895
- Species Julus broti Humbert, 1893 accepted as Cylindroiulus broti (Humbert, 1893)
- Species Julus burkei Bollman, 1887 accepted as Nannolene burkei (Bollman, 1887)
- Species Julus caeruleocinctus Wood, 1864 accepted as Cylindroiulus caeruleocinctus (Wood, 1864)
- Species Julus caesar Karsch, 1881
- Species Julus caesius (Wood, 1867)
- Species Julus canadensis Newport, 1844 accepted as Uroblaniulus canadensis (Newport, 1844)
- Species Julus canaliculatus (Wood, 1864)
- Species Julus canariensis (Pocock, 1893)
- Species Julus candidus Müller, 1776
- Species Julus capensis Brandt, 1840 accepted as Spirostreptus capensis (Brandt, 1840)
- Species Julus carnifex Fabricius, 1775 accepted as Xenobolus carnifex (Fabricius, 1775)
- Species Julus carpathicus Verhoeff, 1907 accepted as Xestoiulus carpathicus (Verhoeff, 1907)
- Species Julus cattarensis Latzel, 1884 accepted as Pachyiulus cattarensis (Latzel, 1884)
- Species Julus caucasicus Karsch, 1881
- Species Julus caudatus (Newport, 1844) accepted as Neocricus caudatus caudatus (Newport, 1844)
- Species Julus cavannae Berlese, 1886 accepted as Ommatoiulus parallelus (C. L. Koch, 1847)
- Species Julus cavicola Grinnell, 1908
- Species Julus ceilanicus Brandt, 1840 accepted as Spirostreptus ceilanicus (Brandt, 1841)
- Species Julus celebensis Gervais, 1847
- Species Julus chichimecus De Saussure, 1859 accepted as Anadenobolus chichimecus (De Saussure, 1859)
- Species Julus chilopogon Latzel, 1884 accepted as Ophiulus chilopogon (Latzel, 1884)
- Species Julus cibdellus Chamberlin, 1921 accepted as Leptoiulus cibdellus (Chamberlin, 1921)
- Species Julus ciliatus Verhoeff, 1897 accepted as Leptoiulus trilobatus Verhoeff, 1894
- Species Julus ciliatus Fedrizzi, 1878 accepted as Leptoiulus trilobatus Verhoeff, 1894
- Species Julus cinctatus (Newport, 1844) accepted as Spirostreptus cinctatus Newport, 1844
- Species Julus cinerefrons (Wood, 1864)
- Species Julus coerulans Nĕmec, 1896 accepted as Kryphioiulus occultus (C. L. Koch, 1847)
- Species Julus colchicus Lohmander, 1936
- Species Julus colubrinus Fredrizzi
- Species Julus complanatus Linnaeus, 1761 accepted as Polydesmus complanatus (Linnaeus, 1761)
- Species Julus conformis C. L. Koch, 1863
- Species Julus cornutus Voges, 1878 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Julus corticalis (Lucas, 1846)
- Species Julus costulatus Fritsch, 1871 accepted as Nyranius costulatus (Fritsch, 1871) †
- Species Julus crassicornis Mikan, 1834
- Species Julus crassus Motschulsky, 1856
- Species Julus crassus Linnaeus, 1758
- Species Julus curiosus Karsch, 1881
- Species Julus curvicaudatus Lignau, 1904
- Species Julus curvicaudatus (Newport, 1844) accepted as Spirostreptus curvicaudatus Newport, 1844
- Species Julus curvicornis Verhoeff, 1899
- Species Julus dagestanus Evsyukov, Golovatch & Reip, 2018
- Species Julus dalmaticus C. L. Koch, 1847 accepted as Acanthoiulus fuscipes (C. L. Koch, 1847)
- Species Julus dalmatinus Attems, 1904
- Species Julus dalmatinus C. L. Koch, 1847 accepted as Acanthoiulus fuscipes (C. L. Koch, 1847)
- Species Julus decaisneus Gervais, 1837
- Species Julus dentatus Olivier, 1792 accepted as Stenonia dentata (Olivier, 1792)
- Species Julus dentosus Mikan, 1834
- Species Julus deubeli Verhoeff, 1897 accepted as Leptoiulus deubeli (Verhoeff, 1897)
- Species Julus dicentrus Latzel, 1884 accepted as Allajulus dicentrus (Latzel, 1884)
- Species Julus dietli Verhoeff, 1898 accepted as Cylindroiulus horvathi (Verhoeff, 1897)
- Species Julus dilatatus Mikan, 1834
- Species Julus distinctus Lucas, 1846
- Species Julus doreyanus Gervais, 1847 accepted as Salpidobolus doreyanus (Gervais, 1847)
- Species Julus dorsalis Le Guillou, 1841 accepted as Spirobolus dorsalis (Le Guillou, 1841)
- Species Julus dorsovittatum Verhoeff, 1893 accepted as Schizophyllum dorsovittatum (Verhoeff, 1893)
- Species Julus dorsovittatus Verhoeff, 1893 accepted as Ommatoiulus dorsovittatus (Verhoeff, 1893)
- Species Julus dubius Brandt, 1840
- Species Julus elegans Brandt, 1840 accepted as Centrobolus elegans (Brandt, 1840)
- Species Julus erythropareidus Brandt, 1841
- Species Julus erythropareius Brandt, 1840 accepted as Spirostreptus erythropareius (Brandt, 1840)
- Species Julus eurypus Attems, 1895 accepted as Pachypodoiulus eurypus (Attems, 1894)
- Species Julus exiguus Brandt, 1840
- Species Julus eydouxii Gervais, 1847
- Species Julus fallax Meinert, 1868 accepted as Ophyiulus pilosus (Newport, 1843)
- Species Julus fasciatus C. L. Koch, 1838 accepted as Megaphyllum (Megaphyllum) austriacum (Latzel, 1884)
- Species Julus feae Pocock, 1893 accepted as Nepalmatoiulus birmanicus (Pocock, 1893)
- Species Julus ferreus C. L. Koch, 1863
- Species Julus ferrugineus C. L. Koch, 1838
- Species Julus festivus Perty, 1833
- Species Julus filicornis De Saussure, 1859 accepted as Parajulus filicornis (De Saussure, 1860)
- Species Julus fimbriatus Attems, 1904 accepted as Femoriferus fimbriatus (Attems, 1904)
- Species Julus fischeri (Brandt, 1833) accepted as Spiropoeus fischeri Brandt, 1833
- Species Julus flavipes Mikan, 1834
- Species Julus flavipes C. L. Koch, 1847 accepted as Pachyiulus flavipes (C. L. Koch, 1847)
- Species Julus flavofasciatus Brandt, 1840
- Species Julus flavofasciatus Brandt, 1840 accepted as Spirostreptus flavofasciatus (Brandt, 1840)
- Species Julus flavotaeniatus Brandt, 1841
- Species Julus florissantellus Cockerell, 1907
- Species Julus foetidissimus Savi, 1819 accepted as Callipus foetidissimus (Savi, 1819)
- Species Julus foetidus C. L. Koch, 1838 accepted as Unciger foetidus (C. L. Koch, 1838)
- Species Julus fontisherculis Verhoeff, 1899 accepted as Xestoiulus fontisherculis (Verhoeff, 1899)
- Species Julus fragariarum Lamarck, 1818 accepted as Blaniulus guttulatus (Bosc, 1792)
- Species Julus fraternus De Saussure, 1860 accepted as Orthoporus fraternus (De Saussure, 1860)
- Species Julus frisioides Verhoeff, 1892
- Species Julus frisius Verhoeff, 1891 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus frivaldszkyi Daday, 1889
- Species Julus frondicola Verhoeff, 1899 accepted as Parastenophyllum frondicola (Verhoeff, 1899)
- Species Julus fucatus Karsch, 1881
- Species Julus fulviceps Latzel, 1884 accepted as Cylindroiulus fulviceps (Latzel, 1884)
- Species Julus furcifer Harger, 1872 accepted as Bollmaniulus furcifer (Harger, 1872)
- Species Julus fuscipes C. L. Koch, 1847 accepted as Acanthoiulus fuscipes (C. L. Koch, 1847)
- Species Julus fuscus Linnaeus, 1758
- Species Julus gaimardi Gervais, 1847
- Species Julus gangelbaueri Verhoeff, 1898 accepted as Typhloiulus ganglbaueri (Verhoeff, 1898)
- Species Julus ganglbaueri Verhoeff, 1898 accepted as Typhloiulus ganglbaueri (Verhoeff, 1898)
- Species Julus garumnicus Ribaut, 1904 accepted as Leptoiulus garumnicus (Ribaut, 1904)
- Species Julus gaudichaudi Gervais, 1847 accepted as Rhinocricus gaudichaudi (Gervais, 1847)
- Species Julus germanicus Verhoeff, 1896 accepted as Ophyiulus germanicus (Verhoeff, 1896)
- Species Julus ghilarovi Gulicka, 1963
- Species Julus gilvolineatus L. Koch, 1881 accepted as Megaphyllum (Megaphyllum) unilineatum (C. L. Koch, 1838)
- Species Julus gracilicornis Brandt, 1840
- Species Julus gracilipes (Newport, 1844) accepted as Spirostreptus gracilipes Newport, 1844
- Species Julus gracilis Rothenbühler, 1899 accepted as Leptoiulus belgicus (Latzel, 1884)
- Species Julus gracilis Brandt, 1840 accepted as Zinophora gracilis (Brandt, 1840)
- Species Julus graciliventris Verhoeff, 1898 accepted as Xestoiulus graciliventris (Verhoeff, 1898)
- Species Julus grandis Brandt, 1840
- Species Julus granulatus Gervais, 1847 accepted as Glyphiulus granulatus (Gervais, 1847)
- Species Julus groedensis Attems, 1899 accepted as Allajulus groedensis (Attems, 1899)
- Species Julus guerinii Brandt, 1840
- Species Julus guttulatus Fabricius, 1798 accepted as Blaniulus guttulatus (Fabricius, 1798)
- Species Julus guttulatus Bosc, 1791 accepted as Blaniulus guttulatus (Bosc, 1792)
- Species Julus haitensis Gervais, 1847 accepted as Haitobolus haitensis (Gervais, 1847)
- Species Julus haitensis DeSaussure, 1860 accepted as Alcimobolus domingensis (Humbert & De Saussure, 1872)
- Species Julus hamulosus Mikan, 1834
- Species Julus helveticus Verhoeff, 1894 accepted as Leptoiulus helveticus (Verhoeff, 1894)
- Species Julus hesperus Chamberlin, 1914 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus holdhausi Attems, 1908 accepted as Ophyiulus chilopogon (Latzel, 1884)
- Species Julus hortensis Wood, 1864 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus horvathi Verhoeff, 1897 accepted as Cylindroiulus horvathi (Verhoeff, 1897)
- Species Julus hospitelli Brölemann, 1901 accepted as Leptoiulus piceus (Risso, 1826)
- Species Julus hungaricus Karsch, 1881 accepted as Pachyiulus hungaricus (Karsch, 1881)
- Species Julus idriensis C. L. Koch, 1847 accepted as Acanthoiulus fuscipes (C. L. Koch, 1847)
- Species Julus imbecillum Latzel, 1884 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Julus imbecillus (Latzel, 1884)
- Species Julus imbecillus Latzel, 1884 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Julus immaculatus Wood, 1864 accepted as Uroblaniulus canadensis (Newport, 1844)
- Species Julus impartitus Karsch, 1888 accepted as Symphyoiulus impartitus (Karsch, 1888)
- Species Julus impressus Say, 1821 accepted as Parajulus impressus (Say, 1821)
- Species Julus incertus Brandt, 1841 accepted as Narceus americanus (Palisot de Beauvouis, 1817)
- Species Julus inconspicuus L. Koch, 1881 accepted as Ommatoiulus inconspicuus (L. Koch, 1881)
- Species Julus indicus Linnaeus, 1758 accepted as Spirostreptus indus (Linnaeus, 1758) sensu strictu
- Species Julus indus Linnaeus, 1758 accepted as Spirostreptus indus (Linnaeus, 1758) sensu strictu
- Species Julus indus Linnaeus, 1758 sensu Beauvois, 1817 accepted as Nesobolus loomisi Hoffman, 1998
- Species Julus insignis De Saussure, 1859 accepted as Pelmatojulus insignis (De Saussure, 1859)
- Species Julus insolitus Mikhaljova, 2009
- Species Julus insulanus L. Koch, 1881
- Species Julus insularum Desjardins, 1835 accepted as Sechelleptus seychellarum (Desjardins, 1835)
- Species Julus intermedius Brölemann, 1892 accepted as Heteroiulus intermedius (Brölemann, 1892)
- Species Julus italicus Latzel, 1884 accepted as Cylindroiulus italicus (Latzel, 1884)
- Species Julus javanicus Brandt, 1841 accepted as Remulopygus javanicus (Brandt, 1841)
- Species Julus jedryczkowskii Golovatch, 1981
- Species Julus kandyanus (Humbert, 1865)
- Species Julus karschi Verhoeff, 1892 accepted as Hemipodoiulus karschi (Verhoeff, 1892)
- Species Julus kazakhus Mikhaljova, 2013
- Species Julus khostensis Evsyukov, Golovatch & Reip, 2018
- Species Julus kochii Gervais, 1847 accepted as Nopoiulus kochii (Gervais, 1847)
- Species Julus kollarii Brandt, 1841 accepted as Odontopyge kollarii (Brandt, 1841)
- Species Julus kraepelinorum Latzel, 1895 accepted as Dolichoiulus kraepelinorum (Latzel, 1895)
- Species Julus krueperi Verhoeff, 1900 accepted as Leptoiulus krueperi (Verhoeff, 1901)
- Species Julus kubanus Verhoeff, 1921
- Species Julus lactarius Say, 1821 accepted as Abacion lactarium (Say, 1821)
- Species Julus laetedorsalis Verhoeff, 1898 accepted as Leptoiulus laetedorsalis (Verhoeff, 1898)
- Species Julus laeticollis Porat, 1889 accepted as Xestoiulus laeticollis (Porat, 1889)
- Species Julus lagurus (Linnaeus, 1758) accepted as Polyxenus lagurus (Linnaeus, 1758)
- Species Julus lagurus Gervais, 1847
- Species Julus lapidarius Lucas, 1846
- Species Julus laqueatus Wood, 1864 accepted as Ophyiulus pilosus (Newport, 1843)
- Species Julus laqueratus (Wood, 1864)
- Species Julus latestriatus Curtis, 1845 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus laticollis Brandt, 1840 accepted as Spirostreptus laticollis (Brandt, 1840)
- Species Julus latistriatus Curtis, 1845 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus latzelii Berlese, 1884 accepted as Cylindroiulus latzeli (Berlese, 1884)
- Species Julus laurorum Verhoeff, 1907 accepted as Leptoiulus piceus (Risso, 1826)
- Species Julus legeri Brölemann, 1897 accepted as Leptoiulus legeri (Brölemann, 1897)
- Species Julus lepidus (Porat, 1876)
- Species Julus leprieurii Lucas, 1849
- Species Julus leucopus Gervais, 1847
- Species Julus lignaui (Verhoeff, 1910)
- Species Julus lignicola Ribaut, 1904
- Species Julus ligulifer Latzel & Verhoeff, 1892 accepted as Julus scandinavius (Latzel, 1884)
- Species Julus limbata Olivier, 1792 accepted as Glomeris marginata (Villers, 1789)
- Species Julus limbatus Olivier, 1792 accepted as Glomeris marginata (Villers, 1789)
- Species Julus lindholmi Lohmander, 1936
- Species Julus lineatus McNeil, 1887 accepted as Virgoiulus minutus (Brandt, 1840)
- Species Julus liptauensis Verhoeff, 1899 accepted as Leptoiulus liptauensis (Verhoeff, 1899)
- Species Julus litoreus Lignau, 1904 accepted as Cyphobrachyiulus (Diaxylus) litoreus (Lignau, 1903)
- Species Julus lividus Voges, 1878
- Species Julus londinensis Leach, 1816 accepted as Cylindroiulus londinensis (Leach, 1816)
- Species Julus longabo C. L. Koch, 1847 accepted as Ophyiulus pilosus (Newport, 1843)
- Species Julus longipes Le Guillou, 1841
- Species Julus lucifugus Gervais, 1837 accepted as Paraspirobolus lucifugus (Gervais, 1836)
- Species Julus lunelii (Humbert, 1865) accepted as Humbertostreptus lunelii (Humbert, 1865)
- Species Julus luridus (C. L. Koch, 1847)
- Species Julus luridus C. L. Koch, 1847 accepted as Julus luridus (C. L. Koch, 1847)
- Species Julus luscus Meinert, 1868 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus lusitania Karsch, 1881
- Species Julus lusitanicus Karsch, 1881 accepted as Ommatoiulus moreleti (Lucas, 1860)
- Species Julus maculatus (Newport, 1844) accepted as Spirostreptus maculatus Newport, 1844
- Species Julus madagascariensis Gervais, 1847
- Species Julus malabaricus Gervais, 1847
- Species Julus marcgravii Brandt, 1841
- Species Julus margaritatus Fanzago, 1875 accepted as Italoiulus margaritatus (Fanzago, 1875)
- Species Julus marginata (Villers, 1789) accepted as Glomeris marginata (Villers, 1789)
- Species Julus marginatus Say, 1821 accepted as Narceus annularis (Rafinesque, 1820)
- Species Julus marmorea Olivier, 1792 accepted as Glomeris marmorea (Olivier, 1792)
- Species Julus matulici Verhoeff, 1901 accepted as Leptoiulus matulicii (Verhoeff, 1901)
- Species Julus matulicii Verhoeff, 1901 accepted as Leptoiulus matulicii (Verhoeff, 1901)
- Species Julus maximus Linnaeus, 1758
- Species Julus mediterraneus Latzel, 1883 accepted as Ommatoiulus rutilans (C. L. Koch, 1847)
- Species Julus meinerti (Verhoeff, 1891) accepted as Cylindroiulus meinerti (Verhoeff, 1891)
- Species Julus melancholicus C. L. Koch, 1847
- Species Julus melanopygus Brandt, 1840 accepted as Spirostreptus melanopygus (Brandt, 1840)
- Species Julus meridionalis Gervais, 1847
- Species Julus meridionalis Brölemann, 1898 represented as Leptoiulus meridionalis (Brölemann, 1898)
- Species Julus merontis Attems, 1902 accepted as Brachyiulus stuxbergi (Fanzago, 1875)
- Species Julus mexicanus De Saussure, 1859 accepted as Hiltonius mexicanus (De Saussure, 1859)
- Species Julus microporus (Porat, 1893)
- Species Julus milesii (Wood, 1864)
- Species Julus minutus Brandt, 1840 accepted as Virgoiulus minutus (Brandt, 1840)
- Species Julus minutus Porat, 1889 accepted as Leptoiulus cibdellus (Chamberlin, 1921)
- Species Julus modestus Risso, 1826
- Species Julus modestus (Humbert, 1865) accepted as Spirostreptus modestus Humbert, 1865
- Species Julus moebiusi Verhoeff, 1897 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Julus molleri Verhoeff, 1892 accepted as Cylindroiulus propinquus (Porat, 1870)
- Species Julus montanus Cope, 1869 accepted as Ptyoiulus montanus (Cope, 1869)
- Species Julus montezumae Saussure, 1859 accepted as Orthoporus montezumae (Saussure, 1859)
- Species Julus montivagus Latzel, 1884 accepted as Leptoiulus montivagus (Latzel, 1884)
- Species Julus moreleti Lucas, 1860 accepted as Ommatoiulus moreleti (Lucas, 1860)
- Species Julus muscorum Lucus, 1839 accepted as Eurygyrus muscorum (Lucus, 1839)
- Species Julus mystecus De Saussure, 1860 accepted as Messicobolus mystecus (De Saussure, 1860)
- Species Julus mystecus Chamberlin, 1953 accepted as Messicobolus mystecus (De Saussure, 1860)
- Species Julus nanus Latzel, 1884 accepted as Enantiulus nanus (Latzel, 1884)
- Species Julus napolitanus Attems, 1903 accepted as Ophyiulus napolitanus (Attems, 1903)
- Species Julus nemorensis Menge, 1851 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Julus nemorensis C. L. Koch, 1838
- Species Julus nesophilus Chamberlin, 1920
- Species Julus newporti Gervais, 1847 accepted as Rhinocricus newporti (Gervais, 1847)
- Species Julus nietanus De Saussure, 1860
- Species Julus nietanus De Saussure, 1860 accepted as Centrelus nietanus (De Saussure, 1860)
- Species Julus niger Leach, 1816 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Julus nigricans Mikan, 1834 accepted as Spirobolus nigricans (Mikan, 1834)
- Species Julus nigripes C. L. Koch, 1847 accepted as Pachyiulus varius (Fabricius, 1781)
- Species Julus nigritarsis L. Koch, 1881
- Species Julus nigritarsis Verhoeff, 1882 accepted as Ommatoiulus inconspicuus (L. Koch, 1881)
- Species Julus nigrofuscus Verhoeff, 1894 accepted as Ophyiulus nigrofuscus (Verhoeff, 1894)
- Species Julus nigrolabiatus (Newport, 1844) accepted as Phyllogonostreptus nigrolabiatus (Newport, 1844)
- Species Julus nitens Murray, 1877
- Species Julus nitidus Verhoeff, 1891 accepted as Leucoiulus nitidus (Verhoeff, 1891)
- Species Julus nivicomes Verhoeff, 1901
- Species Julus obtusatus Mikan, 1834 accepted as Spirobolus obtusatus (Mikan, 1834)
- Species Julus occidentalis Grinnell, 1908
- Species Julus occultus Verhoeff, 1893 accepted as Cylindroiulus perforatus Verhoeff, 1905
- Species Julus occultus C. L. Koch, 1847 accepted as Kryphioiulus occultus (C. L. Koch, 1847)
- Species Julus octoformis Voges, 1878
- Species Julus odieri Brölemann, 1896 accepted as Leptoiulus helveticus (Verhoeff, 1894)
- Species Julus oenologus Berlese, 1885 accepted as Pachyiulus oenologus (Berlese, 1886)
- Species Julus olivaceus (Newport, 1844) accepted as Anadenobolus olivaceus (Newport, 1844)
- Species Julus oliveirae Verhoeff, 1893 accepted as Ommatoiulus oliveirae (Verhoeff, 1893)
- Species Julus oniscoides Steward, 1802 accepted as Glomeris marginata (Villers, 1789)
- Species Julus oregonensis (Wood, 1864) accepted as Tuniulus oregonensis (Wood, 1864)
- Species Julus oribates Latzel, 1884 accepted as Leptoiulus oribates (Latzel, 1884)
- Species Julus ornatus Girard, 1853 accepted as Orthoporus ornatus (Girard, 1853)
- Species Julus otomitus Saussure, 1859 accepted as Orthoporus otomitus (Saussure, 1859)
- Species Julus ovale Linnaeus, 1788
- Species Julus ovalis Linnaeus, 1758 accepted as Cryxus ovalis (Linnaeus, 1758)
- Species Julus oweni Bollman, 1887 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus owenii Bollman, 1887 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Julus oxypygus Brandt, 1841 accepted as Ommatoiulus oxypygus (Brandt, 1841)
- Species Julus pachysoma Brandt, 1840 accepted as Harpagophora attenuata (Brandt, 1840)
- Species Julus pallipes Olivier, 1792 accepted as Strongylosoma stigmatosum (Eichwald, 1830)
- Species Julus palmiger Gervais, 1847
- Species Julus parallelus C. L. Koch, 1847 accepted as Ommatoiulus parallelus (C. L. Koch, 1847)
- Species Julus parisiorum Brölemann & Verhoeff, 1896 accepted as Cylindroiulus parisiorum (Brölemann & Verhoeff, 1896)
- Species Julus parvipes Newport, 1844 accepted as Iulus parvipes Newport, 1844
- Species Julus pelidnus Latzel, 1884 accepted as Styrioiulus pelidnus (Latzel, 1884)
- Species Julus penicillatus DeGeer accepted as Polyxenus lagurus (Linnaeus, 1758)
- Species Julus pennsylvanicus Brandt, 1840 accepted as Parajulus pennsylvanicus (Brandt, 1840)
- Species Julus pensylvanicus Brandt, 1841 accepted as Parajulus impressus (Say, 1821)
- Species Julus philippensis Gervais, 1847
- Species Julus piceus Risso, 1826 accepted as Leptoiulus piceus (Risso, 1826)
- Species Julus pilipes Newport, 1844
- Species Julus pilosiscuta (Wood, 1864) accepted as Ptyoiulus impressus (Say, 1821)
- Species Julus pilosiscutis Wood, 1864 accepted as Ptyoiulus impressus (Say, 1821)
- Species Julus pilosus Newport, 1844 accepted as Ophyiulus pilosus (Newport, 1843)
- Species Julus pinnatus Mikan, 1834
- Species Julus platyurus Latzel, 1884 accepted as Omobrachyiulus platyurus (Latzel, 1884)
- Species Julus plicatum Guérin, 1837 accepted as Lysiopetalum plicatum (Guérin, 1837)
- Species Julus plumbea Olivier, 1792 accepted as Glomeris plumbea (Olivier, 1792)
- Species Julus plumbeus Olivier, 1792 accepted as Glomeris plumbea (Olivier, 1792)
- Species Julus podabrus Latzel, 1884 accepted as Chromatoiulus podabrus (Latzel, 1884)
- Species Julus porathi Verhoeff, 1893 accepted as Ommatoiulus porathi (Verhoeff, 1893)
- Species Julus porati Verhoeff, 1894 accepted as Schizophyllum porati (Verhoeff, 1894)
- Species Julus postsquamatus Verhoeff, 1898 accepted as Symphyoiulus impartitus (Karsch, 1888)
- Species Julus profugus (Stuxberg, 1876) accepted as Sibiriulus profugus (Stuxberg, 1876)
- Species Julus propinquus Porat, 1870 accepted as Cylindroiulus propinquus (Porat, 1870)
- Species Julus proximus Nĕmec, 1896 accepted as Lamelloiulus proximus (Nĕmec, 1896)
- Species Julus psilonotus Latzel, 1884 accepted as Typhloiulus psilonotus (Latzel, 1884)
- Species Julus pubescens Karsch, 1881
- Species Julus pulchellus Leach, 1816 accepted as Blaniulus guttulatus (Fabricius, 1798)
- Species Julus pulchellus C. L. Koch, 1847 accepted as Nopoiulus kochii (Gervais, 1847)
- Species Julus punctatus Say, 1821 accepted as Cleidogona sayana Bollman, 1893
- Species Julus punctatus Leach, 1816 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Julus punctilabium (Newport, 1844) accepted as Spirostreptus punctilabium Newport, 1844
- Species Julus punicus Brölemann, 1894 accepted as Ommatoiulus punicus (Brölemann, 1894)
- Species Julus pusillus Say, 1821 accepted as Virgoiulus minutus (Brandt, 1840)
- Species Julus pusillus Leach, 1816 accepted as Brachyiulus pusillus (Leach, 1816)
- Species Julus pyrenaicus (Brölemann, 1897) accepted as Cylindroiulus pyrenaicus (Brölemann, 1897)
- Species Julus quadripunctatus Fanzago, 1875
- Species Julus rasilis Karsch, 1881
- Species Julus rebeli Attems, 1904 accepted as Xestoiulus rebeli (Attems, 1904)
- Species Julus relictus (Verhoeff, 1893)
- Species Julus rimosus Karsch, 1881 accepted as Ommatoiulus rimosus (Karsch, 1881)
- Species Julus riparius Verhoeff, 1894 accepted as Leptoiulus riparius (Verhoeff, 1894)
- Species Julus roissyi Le Guillou, 1841
- Species Julus roseus Fedrizzi, 1878
- Species Julus roseus Gervais, 1847 accepted as Rhinocricus roseus (Gervais, 1847)
- Species Julus rossicus Timotheew, 1897 accepted as Byzantorhopalum (Byzantorhopalum) rossicum (Timotheew, 1897)
- Species Julus rotundatus Brandt, 1840 accepted as Spirostreptus rotundatus (Brandt, 1840)
- Species Julus ruber Lignau, 1903 accepted as Caucasoiulus ruber (Lignau, 1903)
- Species Julus rubripes C. L. Koch, 1847
- Species Julus rubrodorsalis Verhoeff, 1900 accepted as Ophyiulus rubrodorsalis (Verhoeff, 1901)
- Species Julus ruficeps Brandt, 1840
- Species Julus rufifrans Berlese, 1896
- Species Julus rufifrons C. L. Koch, 1847 accepted as Cylindroiulus rufifrons (C. L. Koch, 1847)
- Species Julus rugifrons Meinert, 1868 accepted as Julus terrestris Linnaeus, 1758
- Species Julus rupestris Linnaeus
- Species Julus rutilans C. L. Koch, 1847 accepted as Ommatoiulus rutilans (C. L. Koch, 1847)
- Species Julus sabulosum Linnaeus, 1758 accepted as Schizophyllum sabulosum (Linnaeus, 1758)
- Species Julus sabulosus Linnaeus, 1758 accepted as Palaioiulus sabulosus (Linnaeus, 1758)
- Species Julus sagittarius (Brölemann, 1897) accepted as Cylindroiulus sagittarius (Brölemann, 1897)
- Species Julus saltuvagus Verhoeff, 1898 accepted as Leptoiulus saltuvagus (Verhoeff, 1898)
- Species Julus salvagicus Latzel, 1895 accepted as Dolichoiulus salvagicus (Latzel, 1895)
- Species Julus sarajevensis Verhoeff, 1898 accepted as Leptoiulus sarajevensis (Verhoeff, 1898)
- Species Julus sayi Newport, 1844 accepted as Virgoiulus minutus (Brandt, 1840)
- Species Julus sayii Newport, 1844 accepted as Virgoiulus minutus (Brandt, 1840)
- Species Julus scandinavicus Latzel, 1884 accepted as Julus scandinavius (Latzel, 1884)
- Species Julus scandinavius (Latzel, 1884)
- Species Julus scanicus Lohmander, 1925
- Species Julus schioedtei Verhoeff, 1898 accepted as Allopodoiulus schioedtei (Verhoeff, 1898)
- Species Julus sculterorum Brölemann, 1905 accepted as Typhloiulus sculterorum (Brölemann, 1905)
- Species Julus sebae (Brandt, 1833)
- Species Julus semiflavus C. L. Koch, 1847 accepted as Pachyiulus varius (Fabricius, 1781)
- Species Julus septemlineatus Pocock, 1893 accepted as Nepalmatoiulus septemlineatus (Pocock, 1893)
- Species Julus serpentinus C. L. Koch, 1863
- Species Julus serrulatus Mikan, 1834
- Species Julus seticaudus (Porat, 1876)
- Species Julus silvarum Meinert, 1868 accepted as Aneuloboiulus silvarum (Meinert, 1868)
- Species Julus silvicola Brölemann
- Species Julus silvivagus Verhoeff, 1898 accepted as Leptoiulus trilineatus (C. L. Koch, 1847)
- Species Julus similis C. L. Koch, 1838 accepted as Cylindroiulus luridus (C. L. Koch, 1847)
- Species Julus simplex (Verhoeff, 1894) accepted as Leptoiulus simplex Verhoeff, 1894
- Species Julus solitarius (Pocock, 1893)
- Species Julus spathifer (Brölemann, 1897) accepted as Haplopodoiulus spathifer (Brölemann, 1897)
- Species Julus spinicaudus Gervais, 1847 accepted as Carlogonus spinicaudus (Gervais, 1847)
- Species Julus spinifer Verhoeff, 1895 accepted as Chaitoiulus spinifer (Verhoeff, 1895)
- Species Julus spinosus Ribaut, 1904 accepted as Allajulus spinosus (Ribaut, 1904)
- Species Julus steini Karsch, 1881
- Species Julus stictus Latzel, 1882
- Species Julus stigmatosum Eichwald, 1830
- Species Julus stigmatosus Brandt, 1840 accepted as Cleidogona sayana Bollman, 1893
- Species Julus stigmatosus Eichwald, 1830 accepted as Strongylosomum stigmatosus (Eichwald, 1830)
- Species Julus striatus Hutton, 1877 accepted as Spirostreptus striatus (Hutton, 1877)
- Species Julus strictus Latzel, 1882 accepted as Typhloiulus strictus (Latzel, 1882)
- Species Julus striolatus Gervais, 1847
- Species Julus stuxbergi Fanzago, 1875 accepted as Brachyiulus stuxbergi (Fanzago, 1875)
- Species Julus stuxbergii Fanzago, 1875 accepted as Brachyiulus stuxbergi (Fanzago, 1875)
- Species Julus subalpinus Lohmander, 1936
- Species Julus sublaevis Gervais, 1847 accepted as Gymnostreptus sublaevis (Gervais, 1847)
- Species Julus subuniplicatus Brandt, 1841 accepted as Spirostreptus subuniplicatus (Brandt, 1841)
- Species Julus sulcicollis C. L. Koch, 1856
- Species Julus sumatrensis Gervais, 1847 accepted as Trigoniulus corallinus (Eydoux & Souleyet, 1842)
- Species Julus surinamensis Brandt, 1841 accepted as Spirostreptus surinamensis (Brandt, 1841)
- Species Julus syriacus De Saussure, 1859 accepted as Archispirostreptus syriacus (DeSaussure, 1859)
- Species Julus tanymorphus Attems, 1901 accepted as Leptoiulus tanymorphus (Attems, 1901)
- Species Julus tarascus De Saussure, 1860 accepted as Parajulus tarascus (De Saussure, 1860)
- Species Julus tepanecus Saussure, 1859 accepted as Messicobolus tepanecus (De Saussure, 1860)
- Species Julus terrestris Linnaeus, 1758
- Species Julus terrestris Linnaeus, 1758 sensu Lignau, 1903 accepted as Julus lignaui (Verhoeff, 1910)
- Species Julus testacea Olivier, 1792 accepted as Zoosphaerium testaceum (Olivier, 1792)
- Species Julus testaceus Olivier, 1792 accepted as Zoosphaerium testaceum (Olivier, 1792)
- Species Julus teutonicus Pocock, 1900 accepted as Cylindroiulus caeruleocinctus (Wood, 1864)
- Species Julus thomasii Pocock, 1895
- Species Julus tirolensis Verhoeff, 1894 accepted as Cylindroiulus tirolensis (Verhoeff, 1894)
- Species Julus tobias Berlese, 1886 accepted as Stygiiulus tobias (Berlese, 1886)
- Species Julus toltecus De Saussure, 1859 accepted as Anadenobolus toltecus (De Saussure, 1859)
- Species Julus tomosvaryi Daday, 1889
- Species Julus tonginus Karsch, 1881
- Species Julus totonacus De Saussure, 1860 accepted as Anadenobolus totonacus (De Saussure, 1860)
- Species Julus transversosulcatus Am Stein, 1957 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Julus transylvanicus Daday, 1889 accepted as Leptoiulus transsylvanicus (Daday, 1889)
- Species Julus trigonyger Brandt, 1840 accepted as Spirostreptus trigonyger (Brandt, 1840)
- Species Julus trilineatus C. L. Koch, 1847 accepted as Leptoiulus trilineatus (C. L. Koch, 1847)
- Species Julus trilobatus (Verhoeff, 1894) accepted as Leptoiulus trilobatus Verhoeff, 1894
- Species Julus trimarginatus (Gervais, 1847)
- Species Julus triplicatus Brandt, 1840 accepted as Spirostreptus triplicatus Brandt, 1840
- Species Julus tristani (Pocock, 1893)
- Species Julus tuberculosus Mikan, 1834
- Species Julus tussilaginis Verhoeff, 1907 accepted as Leptoiulus tussilaginis (Verhoeff, 1907)
- Species Julus tzendalus De Saussure, 1860 accepted as Messicobolus tzendalus (De Saussure, 1860)
- Species Julus umbratilis Ribaut, 1905 accepted as Leptoiulus umbratilis (Ribaut, 1905)
- Species Julus unicolor C. L. Koch, 1847 accepted as Pachyiulus varius (Fabricius, 1781)
- Species Julus unilineatus C. L. Koch, 1838 accepted as Megaphyllum (Megaphyllum) unilineatum (C. L. Koch, 1838)
- Species Julus vagabundus Latzel, 1884 accepted as Phylacodon vagabundus (Latzel, 1884)
- Species Julus validus Brandt, 1840 accepted as Spirostreptus validus (Brandt, 1840)
- Species Julus varius Fabricius, 1781 accepted as Pachyiulus varius (Fabricius, 1781)
- Species Julus verhoeffi Brölemann, 1896 accepted as Cylindroiulus verhoeffi (Brölemann, 1896)
- Species Julus verhoeffi Brölemann, 1896 sensu Verhoeff, 1896 accepted as Cylindroiulus rubidicollis Verhoeff, 1930
- Species Julus vermiformis Gervais, 1847 accepted as Spirostreptus vermiformis (Gervais, 1847)
- Species Julus verreauxii Gervais, 1847 accepted as Amastigogonus verreauxii (Gervais, 1847)
- Species Julus vieirae Verhoeff, 1900 accepted as Leptoiulus vieirae (Verhoeff, 1900)
- Species Julus virgatus Wood, 1864
- Species Julus virginiensis Gray, 1832 accepted as Fontaria virginiensis (Gray, 1832)
- Species Julus virginiensis Drury, 1770 accepted as Polydesmus virginiensis (Drury, 1770)
- Species Julus vittatus (Newport, 1844) accepted as Anurostreptus vittatus (Newport, 1844)
- Species Julus walckenaerii Brandt, 1841
- Species Julus walkenaerii Brandt, 1841 accepted as Spirostreptus walkenaerii (Brandt, 1841)
- Species Julus zameniscolor (Fanzago, 1880)
- Species Julus zapotecus De Saussure, 1860 accepted as Anadenobolus zapotecus (De Saussure, 1860)
- Species Julus zinalensis Faës, 1902 accepted as Cylindroiulus zinalensis (Faës, 1902)
- Genus Mastigoiulus Attems, 1894 accepted as Julus Linnaeus, 1758
- Genus Micropodoiulus Verhoeff, 1893 accepted as Julus Linnaeus, 1758
- Genus Orescioiulus Lohmander, 1936 (2)
- Genus Ornithoeides Verhoeff, 1941
- Genus Pachypodoiulus Verhoeff, 1897 (1)
- Genus Parastenophyllum Verhoeff, 1899 (1)
- Genus Porrhoiulus Lohmander, 1936 (1)
- Genus Raulinsia Leach, 1814 accepted as Julus Linnaeus, 1758
- Genus Rumaniulus Attems, 1926 (1)
- Genus Stenophyllum Verhoeff, 1897 (4)
- Tribe Leptoiulini Lohmander, 1936 (132)
- Tribe Leptophyllini Verhoeff, 1930 accepted as Cylindroiulini Verhoeff, 1930
- Tribe Metaiulini Blower, 1958 (1)
- Tribe Ommatoiulini Hoffman, 1980 accepted as Schizophyllini Verhoeff, 1909 (97)
- Tribe Oncoiulini Verhoeff, 1909 (4)
- Tribe Pachybrachyiulini Lohmander, 1936
- Tribe Pachyiulini Verhoeff, 1899
- Tribe Schizophyllini Verhoeff, 1909
- Tribe Typhloiulini Verhoeff, 1930 (62)
- Genus Banatoiulus Tabacaru, 1985 (1)
- Genus Pacifiiulus Mikhaljova, 1982 (2)
- Genus Sibiriulus Gulička, 1963 (8)
- Subfamily Leptoiulinae Lohmander, 1936
- Subfamily Oncoiulinae Verhoeff, 1909 (105)
- Subfamily Pachyiulinae Verhoeff, 1899 (65)
- Subfamily Paectophyllinae Verhoeff, 1900 (20)
- Subfamily Pteridoiulinae Verhoeff, 1913 (1)
- Subfamily Uncigerinae Lohmander, 1936 accepted as Oncoiulinae Verhoeff, 1909
- Genus Allajulus C. L. Koch, 1847 (7)
- Genus Amblyiulus Silvestri, 1896 (17)
- Genus Armeniophyllum Lohmander, 1932 (1)
- Genus Brachyiulus Berlese, 1884 (8)
- Genus Calyptophyllum Brölemann, 1922 (10)
- Genus Cryptoiulus Verhoeff, 1894 (1)
- Genus Cylindroiulus Verhoeff, 1894 (141)
- Genus Diploiulus Berlese, 1883 accepted as Pachyiulus Berlese, 1883
- Genus Dolichoiulus Verhoeff, 1900 (64)
- Genus Heteroporiulus Silvestri, 1897 accepted as Heteroiulus Verhoeff, 1897
- Genus Hylopachyiulus Attems, 1904 (3)
- Genus Interleptoiulus Mršić, 1988 (1)
- Genus Iulus auct. accepted as Julus Linnaeus, 1758
- Genus Mesoporoiulus Verhoeff, 1905
- Genus Rhodopotyphlus Vagalinski, 2021 (1)
- Genus Syrioiulus Verhoeff, 1914 (11)
- Family Rhopaloiulidae Attems, 1926 (1)
- Family Trichoblaniulidae Verhoeff, 1911 (5)
- Family Trichonemasomatidae Enghoff, 1991 (1)
- Superfamily Nemasomatoidea Bollman, 1893 (29)
- Superfamily Paeromopodoidea Cook, 1895
- Superfamily Paeromopoidea Cook, 1895 (11)
- Superfamily Parajuloidea Bollman, 1893 (156)
- Family Californiulidae Verhoeff, 1938
- Family Isobatidae Cook, 1895 accepted as Nemasomatidae Bollman, 1893
- Family Julida incertae sedis
- Family Leucogeorgiidae Verhoeff, 1930
- Family Nemasomidae Chamberlin & Hoffman, 1958 accepted as Nemasomatidae Bollman, 1893
- Family Pachyiulidae Verhoeff, 1899
- Family Paeromopidae Cook, 1895
- Family Paraiulidae Bollman, 1893
- Family Protoiulidae Verhoeff, 1896
- Family Zosteractiidae Loomis, 1943
- Order Juliformia incertae sedis
- Order Spirobolida (1 172)
- Order Spirostreptida (1 837)
- Superorder Merocheta (5 647)
- Superorder Nematophora (1 676)
- Order Siphoniulida (2)
- Family Hexecontasomatidae Hannibal, 2000 † (1)
- Family Oklahomasomatidae Hannibal & May, 2020 †
- Genus Dolesea Hannibal & May, 2020 †
- Infraclass Pentazonia (786)
- Order Zosterogrammida † (1)
- Subclass Penicillata (161)
- Class Euthycarcinoidea †
- Class Pauropoda (534)
- Class Symphyla (103)
