All (in this database) Millipeds list (Scientific names)

Diplopoda group is mostly based on North American checklist.Not many species outside that region is mentioned.

Polyxenida Gray, 1842 (Diplopoda:class)

Polyxenidae Gray, 1842
- Polyxenus Latreille, 1802
  - anacopensis Pierce, 1940
  - bartschi Chamberlin, 1922
  - fasciculatus Say, 1821
  - lagurus (Linnaeus, 1758)
  - pugetensis Kincaid, 1898
  - tuberculatus Pierce, 1940

Glomerida Leach, 1815 (Diplopoda:class)

Glomeridae Leach, 1815
- Glomeris
  - marginata
  - connexa
- Onomeris Cook, 1896
  - australora Hoffman, 1950
  - underwoodi Cook, 1896
- Sonoromeris Silvestri, 1929
  - prima (Silvestri, 1929)
- Trichomeris Loomis, 1943
  - sinuata Loomis, 1943

Polydesmida (Diplopoda:class)

Cyclodesmidae Silvestri, 1894
- Ethocyclus Chamberlin & Mulaik, 1941
  - atophus Chamberlin & Mulaik, 1941

Desmonidae Cook, 1898
- Desmoniella Loomis, 1943
  - curta Loomis, 1943
- Desmonus Cook, 1898
  - earlei Cook, 1898
  - pudicus (Bollman, 1888)

Eurydesmidae Chamberlin, 1950
- Amplocheir Chamberlin, 1949
  - reducta Causey, 1955
  - sequoia (Chamberlin, 1941)
- Anombrocheir Buckett & Gardner, 1969
  - spinosa Buckett & Gardner, 1969
  - bifurcata Gardner & Buckett, 1969
- Apheloria Chamberlin, 1921
  - adela Chamberlin, 1939
  - ainsliei Chamberlin, 1921
  - asburna Chamberlin, 1949
  - aspila Chamberlin, 1939
  - butleriana (Bollman, 1889)
  - coriacea (Koch, 1847)
  - inexpectatus (Attems, 1931)
  - iowa Chamberlin, 1939
  - keuka Chamberlin, 1939
  - kleinpeteri Hoffman, 1949
  - montana (Bollman, 1888)
  - pinicola Chamberlin, 1947
  - reducta Chamberlin, 1939
  - roanea Chamberlin, 1947
  - tigana Chamberlin, 1939
  - trimaculata (Wood, 1864)
  - unaka Chamberlin, 1939
  - virginia Chamberlin, 1939
  - waccamana Chamberlin, 1940
- Boraria Chamberlin, 1943
  - brunnior (Chamberlin, 1943)
  - carolina (Chamberlin, 1939)
  - fumans (Chamberlin, 1943)
  - geniculata (Chamberlin, 1939)
  - media (Chamberlin, 1918)
  - monticolens Chamberlin, 1951
  - stricta (Brölemann, 1896)
- Brachoria Chamberlin, 1939
  - benderi Causey, 1950
  - brachypus Chamberlin, 1947
  - electa Causey, 1955
  - ethotela Chamberlin, 1942
  - eutypa Chamberlin, 1939
  - glendalea (Chamberlin, 1918)
  - hansonia Causey, 1950
  - indianae (Bollman, 1889)
  - initialis Chamberlin, 1939
  - ochra (Chamberlin, 1918)
  - separanda Chamberlin, 1947
  - sequens Chamberlin, 1939
  - tenebrans (Hoffman, 1948)
- Cheirauxus Chamberlin, 1949
  - sapiens Chamberlin, 1949
- Cheiropus Loomis, 1944
  - plancus Loomis, 1944
- Cherokia Chamberlin, 1949
  - georgiana (Bollman, 1889)
- Chipus Loomis, 1953
  - unicus Loomis, 1953
- Chonaphe Cook, 1904
  - armata (Harger, 1872)
  - cygneia Chamberlin, 1949
  - patriotica Chamberlin, 1949
  - remissa Chamberlin, 1949
- Cibularia Chamberlin & Hoffman, 1950
  - profuga Causey, 1955
  - tuobita (Chamberlin, 1910)
- Cleptoria Chamberlin, 1939
  - macra Chamberlin, 1939
  - rileyi (Bollman, 1889)
  - shelfordi Loomis, 1944
- Delocheir Chamberlin, 1949
  - conservata Chamberlin, 1949
  - dalea Chamberlin, 1949
  - taibona (Chamberlin, 1912)
- Deltotaria Causey, 1942
  - brimleardia Causey, 1950
  - brimleii Causey, 1942
  - philia (Chamberlin, 1949)
  - tela Causey, 1950
- Dicellarius Chamberlin, 1920
  - bimaculatus (McNeill, 1887)
  - lamellidens (Chamberlin, 1931)
  - okefenokensis (Chamberlin, 1918)
- Dixioria Chamberlin, 1947
  - pela (Chamberlin, 1918)
- Dynoria Chamberlin, 1939
  - incana Chamberlin, 1939
  - medialis Chamberlin, 1949
- Epeloria Chamberlin, 1939
  - atlanta Chamberlin, 1946
  - bifida (Wood, 1864)
  - dela Chamberlin, 1946
  - ficta Chamberlin, 1943
  - leicantha Chamberlin, 1946
  - talapoosa Chamberlin, 1939
- Falloria Hoffman, 1948
  - bidens (Causey, 1942)
- Fontaria Gray, 1832
  - agrestis (Loomis, 1944)
  - virginiensis (Drury, 1770)
- Harpaphe Cook, 1904
  - clara Chamberlin, 1949
  - haydeniana (Wood, 1864)
  - inlignea Chamberlin, 1949
  - intaminata (Karsch, 1881)
  - maculifer (Chamberlin, 1941)
  - modestior (Chamberlin, 1941)
  - penulta Chamberlin, 1949
  - pottera Chamberlin, 1949
  - telodonta (Chamberlin, 1943)
- Hybaphe Cook, 1904
  - curtipes Cook, 1904
  - tersa Cook, 1904
- Isaphe Cook, 1904
  - convexa Cook, 1904
  - simplex Chamberlin, 1918
- Howellaria Hoffman, 1950
  - deturkiana (Causey, 1942)
- Metaxycheir Buckett & Gardner, 1969
  - prolata Buckett & Gardner, 1969
- Mimuloria Chamberlin, 1928
  - castanea (McNeill, 1887)
  - davidcauseyi (Causey, 1950)
  - depalmai (Causey, 1950)
  - missouriensis Chamberlin, 1928
  - ohionis (Loomis & Hoffman, 1948)
- Montaphe Chamberlin, 1949
  - elrodi (Chamberlin, 1913)
- Motyxia Chamberlin, 1941
  - exilis Loomis, 1953
  - expansa Loomis, 1953
  - kerna Chamberlin, 1941
  - monica Chamberlin, 1944
  - pior Chamberlin, 1941
  - tejona Chamberlin, 1947
- Nannaria Chamberlin, 1918
  - austricola Hoffman, 1950
  - cayugae Chamberlin, 1949
  - conservata Chamberlin, 1940
  - equalis Chamberlin, 1949
  - ericacea Hoffman, 1949
  - fowleri Chamberlin, 1947
  - infesta Chamberlin, 1918
  - laminata Hoffman, 1949
  - minor Chamberlin, 1918
  - morrisoni Hoffman, 1948
  - pulchella (Bollman, 1889)
  - scutellaria Causey, 1942
  - shenandoa Hoffman, 1949
  - simplex Hoffman, 1949
  - tennesseensis (Bollman, 1889)
  - terricola (Williams & Hefner, 1928)
  - wilsoni Hoffman, 1949
- Orophe Chamberlin, 1951
  - cabinetus Chamberlin, 1951
- Pachydesmus Cook, 1895
  - clarus (Chamberlin, 1918)
  - crassicutis (Wood, 1864)
  - denticulatus Chamberlin, 1946
  - duplex Chamberlin, 1939
  - incursus Chamberlin, 1939
  - laticollis (Attems, 1900)
  - louisianus (Chamberlin, 1918)
  - retrorsus Chamberlin, 1921
- Pleuroloma Rafinesque, 1820
  - brunnea (Bollman, 1887)
  - busheyi (Causey, 1951)
  - butleri (McNeill, 1888)
  - cala (Chamberlin, 1939)
  - flavipes Rafinesque, 1820
  - iowa Chamberlin, 1942
  - mima (Chamberlin, 1949)
  - miribilia (Causey, 1951)
  - proxima (Causey, 1951)
  - rubrilata (Hoffman, 1949)
  - urbana (Chamberlin, 1939)
  - warreni (Causey, 1951)
- Rhysodesmus Cook, 1895
  - anamesus (Chamberlin & Mulaik, 1941)
  - texicolens (Chamberlin, 1938)
  - ? limax (Saussure)
- Rudiloria Causey, 1955
  - mohicana Causey, 1955
- Semionellus Chamberlin, 1920
  - placidus (Wood, 1864)
- Sigiria Chamberlin, 1939
  - intermedia (Hoffman, 1948)
  - nigrimontis (Chamberlin, 1947)
  - rubromarginata (Bollman, 1888)
- Sigmocheir Chamberlin, 1951
  - calaveras Chamberlin, 1951
- Sigmoria Chamberlin, 1939
  - aberrans Chamberlin, 1939
  - brachygon Chamberlin, 1940
  - conclusa Chamberlin, 1939
  - divergens Chamberlin, 1939
  - evides (Bollman, 1888)
  - furcifera Hoffman, 1949
  - gracilipes Chamberlin, 1947
  - houstoni Chamberlin, 1943
  - latior (Brölemann, 1900)
  - mariona Chamberlin, 1939
  - mimetica (Chamberlin, 1918)
  - munda Chamberlin, 1939
  - nigrescens Hoffman, 1950
  - stenogon Chamberlin, 1942
  - zyga Chamberlin, 1949
- Thrinaxoria Chamberlin & Hoffman, 1950
  - lampra (Chamberlin, 1918)
- Tubaphe Causey, 1954
  - levii Causey, 1954
- Tucoria Chamberlin, 1943
  - calceata Causey, 1955
  - kentuckiana (Causey, 1942)
  - splendida (Causey, 1942)
  - viridicolens Hoffman, 1948
- Waimokia Chamberlin, 1941
  - placera Chamberlin, 1941
- Xystocheir Cook, 1904
  - acuta Cook, 1904
  - cooki Causey, 1955
  - dissecta (Wood, 1867)
  - francisca Chamberlin, 1949
  - furcifer (Karsch, 1881)
  - milpetas Chamberlin, 1949
  - sequoiae (Loomis & Davenport, 1951)
  - tularea Chamberlin, 1949

Euryuridae Pocock, 1909
- Aphelidesmus Brölemann, 1898
  - tertius (Chamberlin, 1948)
  - ? rivicola (Silvestri)
  - ? hermaphroditus Brölemann
- Euryurus Koch, 1847
  - australis Bollman, 1889
  - erythropygus (Brandt, 1841)
  - leachii (Gray, 1832)
- Auturus Chamberlin, 1942
  - becki Chamberlin, 1951
  - dixianus Chamberlin, 1942
  - evides (Bollman, 1887)
  - florus Causey, 1950
  - georgianus Chamberlin, 1942
  - louisianus (Chamberlin, 1918)
  - mcclurkini Causey, 1955
  - mimetes Chamberlin, 1942
  - phanus Chamberlin, 1942
  - scotius Chamberlin, 1942
- Singuliurus Causey, 1955
  - mississippiensis Causey, 1955

Nearctodesmidae Chamberlin & Hoffman, 1950
- Ergodesmus Chamberlin, 1949
  - compactus Chamberlin, 1949
- Kepolydesmus Chamberlin, 1910
  - anderisus Chamberlin, 1910
  - hesperus Chamberlin, 1949
  - mimus Chamberlin, 1947
  - pungo Chamberlin, 1949
- Nearctodesmus Silvestri, 1910
  - amissus Chamberlin, 1949
  - boydi Chamberlin, 1951
  - brunnior Chamberlin, 1949
  - campicolens Chamberlin, 1949
  - carli Chamberlin, 1951
  - cerasinus (Wood, 1864)
  - cochlearius Causey, 1954
  - insulanus (Chamberlin, 1941)
  - malkini Chamberlin, 1951
  - olympus Causey, 1954
  - pseustes Chamberlin, 1949
  - renigens Chamberlin, 1949
  - salix Chamberlin, 1949

Polydesmidae Leach, 1815
- Antriadesmus Loomis, 1943
  - fragilis Loomis, 1943
- Brachydesmus Heller, 1858
  - californicus Chamberlin, 1918
  - cavicola (Packard, 1877)
  - hastingsus Chamberlin, 1941
  - superus Latzel, 1884
  - yosemitensis Causey, 1954
  - ? subterraneus Heller
- Chaetaspis Bollman, 1887
  - albus Bollman, 1887
  - ohionis Causey, 1950
- Dixidesmus Chamberlin, 1943
  - branneri (Bollman, 1888)
  - catskillus Chamberlin, 1947
  - christianus Chamberlin, 1946
  - echinogon (Chamberlin, 1942)
  - erasus (Loomis, 1943)
  - gausodicrorhachus Johnson, 1954
  - nitidus (Bollman, 1887)
  - penicillus Chamberlin, 1943
  - phanus Chamberlin, 1951
  - sylvicolens Chamberlin, 1943
  - tallulanus Chamberlin, 1943
- Polydesmus Latreille, 1802
  - angustus Latzel, 1884
  - complanatus (Linnaeus, 1761)
  - denticulatus Koch, 1847
  - inconstans Latzel, 1884
  - racovitzai Brölemann, 1910
- Pseudopolydesmus Attems, 1899
  - caddo Chamberlin, 1949
  - euthetus (Chamberlin, 1942)
  - minor (Bollman, 1888)
  - natchitoches (Chamberlin, 1942)
  - neoterus (Chamberlin, 1942)
  - paludicolus Hoffman, 1950
  - paroicus (Chamberlin, 1942)
  - pinetorum (Bollman, 1888)
  - planicolens (Chamberlin, 1942)
  - scopus (Chamberlin, 1942)
  - serratus (Say, 1821)
- Scytonotus Koch, 1847
  - amandus (Chamberlin, 1910)
  - bergrothi Chamberlin, 1911
  - columbianus Chamberlin, 1920
  - granulatus (Say, 1821)
  - insulatus Attems, 1931
  - orthodox Chamberlin, 1925
  - piger Chamberlin, 1910
  - simplex Chamberlin, 1941
  - virginicus (Loomis, 1943)
- Speodesmus Loomis, 1939
  - echinourus Loomis, 1939
- Speorthus Chamberlin, 1942
  - tuganbius Chamberlin, 1952
- Tidesmus Chamberlin, 1943
  - episcopus Chamberlin, 1943
  - hubbsi Chamberlin, 1943
- Utadesmus Chamberlin & Hoffman, 1950
  - henriensis (Chamberlin, 1930)
  - hoffi Chamberlin & Hoffman, 1950

Stylodesmidae Cook, 1895
- Ilyma Chamberlin, 1941
  - cajuni Loomis, 1944
  - ? orizaba Chamberlin
- Psochodesmus Cook, 1896
  - crescentis Cook, 1896

Vanhoeffeniidae Attems, 1914
- Ophiodesmus Cook, 1895
  - albonanus (Latzel, 1895)
  - ? verhoefi (Brölemann)
- Bidentogon Buckett & Gardner, 1968
  - helferorum Buckett & Gardner, 1968

Eurymerodesmidae Causey, 1951
- Eurymerodesmus Brölemann, 1900
  - amplus Causey, 1952
  - angularis Causey, 1952
  - bentonus Causey, 1950
  - birdi Chamberlin, 1931
  - booneus Chamberlin, 1942
  - christianus Chamberlin, 1946
  - compressus Causey, 1952
  - creolus Chamberlin, 1942
  - dubius Chamberlin, 1943
  - goodi Causey, 1952
  - hispidipes (Wood, 1864)
  - louisianae Chamberlin, 1942
  - melacis Chamberlin & Mulaik, 1941
  - mundus Chamberlin, 1931
  - newtonus Chamberlin, 1942
  - oliphantus Chamberlin, 1942
  - planus Causey, 1950
  - sanbernardiensis Causey, 1952
  - schmidti Chamberlin, 1943
  - spectabilis Causey, 1950
  - varius (McNeill, 1887)
  - wellesleybentonus Causey, 1952
- Kewanius Chamberlin, 1938
  - simplex (Chamberlin, 1920)
- Paresmus Chamberlin, 1942
  - columbus Causey, 1950
  - impurus (Wood, 1867)
  - paroicus Chamberlin, 1942
  - polkensis Causey, 1952
  - pulaski Causey, 1950

Strongylosomidae Cook, 1895
- Orthomorpha Bollman, 1893
  - coarctata (Saussure, 1860)
  - ? beaumonti (LeGillou)
- Oxidus Cook, 1911
  - gracilis (Koch, 1847)

Wamokia
- discordalis Buckett & Gardner, 1968
- hoffmani Buckett & Gardner, 1968
- dentata Buckett & Gardner, 1968
- falcata Buckett & Gardner, 1968
- remota Buckett & Gardner, 1968
- sierrae Buckett & Gardner, 1968

Chordeumida (Diplopoda:class)

Bactropidae Chamberlin & Hoffman, 1950
- Bactropus Cook & Collins, 1895
  - conifer Cook & Collins, 1895

Branneriidae Cook, 1896
- Branneria Bollman, 1893
  - carinata (Bollman, 1888)

Caseyidae Verhoeff, 1909
- Caseya Cook & Collins, 1895
  - bentona Chamberlin, 1952
  - dynopta Chamberlin, 1947
  - heteropus Cook & Collins, 1895
  - irritans Chamberlin, 1910
  - sequoia Chamberlin, 1942
  - similis Causey, 1952
- Opiona Chamberlin, 1951
  - columbiana Chamberlin, 1951
  - hatchi Causey, 1954
- Placerna Chamberlin, 1941
  - dorada Chamberlin, 1941
- Vasingtona Chamberlin, 1941
  - fasciata (Chamberlin, 1941)
- Zantona Chamberlin, 1941
  - douglasi Chamberlin, 1941

Cleidogonidae Cook, 1896
- Cleidogona Cook & Collins, 1895
  - arkansana Causey, 1954
  - aspera Causey, 1951
  - caesioannulatus (Wood, 1865)
  - celerita Williams & Hefner, 1928
  - exaspera Williams & Hefner, 1928
  - forceps Cook & Collins, 1895
  - fustis Cook & Collins, 1895
  - inexpectata Hoffman, 1950
  - inflata Causey, 1951
  - jocassee Hoffman, 1950
  - laminata Cook & Collins, 1895
  - major Cook & Collins, 1895
  - margarita Hoffman, 1950
  - minima Causey, 1951
  - mississippiana Chamberlin, 1942
  - sublettei Causey, 1954
  - unita Causey, 1951
- Dearolfia Loomis, 1939
  - lusciosa Loomis, 1939
- Ofcookogona Causey, 1951
  - alia Causey, 1951
  - steuartae Causey, 1951
- Ozarkogona Causey, 1951
  - glebosa Causey, 1951
  - ladymani Causey, 1952
- Pseudotremia Cope, 1869
  - carterensis Packard, 1883
  - cavernarum Cope, 1869
  - eburnea Loomis, 1939
  - fracta Chamberlin, 1951
  - fulgida Loomis, 1943
  - hansoni Chamberlin, 1951
  - hobbsi Hoffman, 1950
  - indianae Chamberlin & Hoffman, 1958
  - nodosa Loomis, 1939
  - princeps Loomis, 1939
  - simulans Loomis, 1939
  - sodalis Loomis, 1939
  - tuberculata Loomis, 1939
  - valga Loomis, 1943
- Rhabdarona Chamberlin & Mulaik, 1941
  - bacillipus Chamberlin & Mulaik, 1941
- Tiganogona Chamberlin, 1928
  - brownae Chamberlin, 1928
  - moesta Causey, 1951

Conotylidae Cook, 1896
- Bollmanella Chamberlin, 1941
  - oregona Chamberlin, 1941
- Conotyla Cook & Collins, 1895
  - albertana Chamberlin, 1920
  - atrolineata (Bollman, 1888)
  - bollmani (McNeill, 1887)
  - coloradensis Chamberlin, 1910
  - deseretae Chamberlin, 1910
  - fischeri Cook & Collins, 1895
  - humerosa Loomis, 1943
  - jonesi Chamberlin, 1951
  - montivaga Loomis, 1943
  - pectinata Causey, 1952
  - specus Loomis, 1939
  - vaga Loomis, 1939
  - wyandotte (Bollman, 1889)
- Cookella Chamberlin, 1941
  - leibergi (Cook & Collins, 1895)
- Flagellopetalum Causey, 1951
  - stannardi Causey, 1951
- Proconotyla Verhoeff, 1932
  - blakei Verhoeff, 1932
- Scoterpes Cope, 1872
  - austrinus Loomis, 1943
  - copei (Packard, 1871)
  - dendropus Loomis, 1939
- Taiyutyla Chamberlin, 1952
  - corvallis Chamberlin, 1952
- Trichopetalum Harger, 1872
  - album Cook & Collins, 1895
  - cornutum Cook & Collins, 1895
  - lunatum Harger, 1872
  - montis Chamberlin, 1951
  - uncum Cook & Collins, 1895
- Trigenotyla Causey, 1951
  - parca Causey, 1951
- Tynopus Chamberlin, 1940
  - dux Chamberlin, 1940
- Zygonopus Ryder, 1881
  - whitei Ryder, 1881
- Zygotela Chamberlin, 1951
  - phana Chamberlin, 1951

Ergethidae Chamberlin, 1949
- Ergethus Chamberlin, 1949
  - perditus Chamberlin, 1949

Rhiscosomididae Silvestri, 1909
- Rhiscosomides Silvestri, 1909
  - josephi Chamberlin, 1941
  - meineri Silvestri, 1909
- Tingupa Chamberlin, 1910
  - monterea Chamberlin, 1910
  - pallida Loomis, 1939
  - utahensis Chamberlin, 1910

Underwoodiidae Verhoeff, 1909
- Underwoodia Cook & Collins, 1895
  - hespera Chamberlin, 1925
  - iuloides (Harger, 1872)
  - polygama Cook & Collins, 1895
  - tida Chamberlin, 1925

Urochordeumidae Silvestri, 1909
- Urochordeuma Silvestri, 1909
  - bumpusi Silvestri, 1909
  - porona Chamberlin, 1941

Idagonidae Buckett & Gardner, 1967
- Idagona Buckett & Gardner, 1967
  - westcotti Buckett & Gardner, 1967

Lysiopetalidae Wood, 1865
- Abacion Rafinesque, 1820
  - lactarium (Say, 1821)
  - magnum (Loomis, 1943)
  - tesselatum Rafinesque, 1820
  - texensis (Loomis, 1937)
- Colactis Loomis, 1937
  - baboquivari Loomis, 1937
  - quadrata Loomis, 1937
  - saxetana Loomis, 1937
  - sideralis Loomis, 1937
  - utorum (Chamberlin, 1925)
- Delophon Chamberlin, 1943
  - carolinum Hoffman, 1950
  - georgianum Chamberlin, 1943
  - serrulatum Causey, 1954
- Diactis Loomis, 1937
  - frondifera Loomis, 1937
  - soleata Loomis, 1937
  - triangula Loomis, 1937
- Etiron Chamberlin, 1941
  - paroicum Chamberlin, 1941
  - pearcei Chamberlin, 1941
- Heptium Loomis, 1937
  - canum Chamberlin, 1941
  - carinellum Loomis, 1937
  - scamillatum Loomis, 1937
- Texophon Chamberlin, 1946
  - nessius Chamberlin, 1946
- Tynomma Loomis, 1937
  - consanguineum Loomis, 1937
  - mutans (Chamberlin, 1910)
  - sedecimum Loomis, 1937
  - magnum Buckett & Gardner, 1969

Striariidae Bollman, 1893
- Amplaria Chamberlin, 1941
  - causeyae (Chamberlin, 1940)
  - eutypa Chamberlin, 1941
  - nazinta (Chamberlin, 1910)
- Striaria Bollman, 1888
  - antica Causey, 1952
  - californica Cook, 1899
  - carmela Chamberlin, 1947
  - columbiana Cook, 1899
  - eldora Chamberlin, 1953
  - granulosa Bollman, 1888
  - imberbis Loomis, 1936
  - nana Loomis, 1936
  - zygoleuca Hoffman, 1950

Julida Brandt, 1833 (Diplopoda:class)

Julidae Meinert, 1868
- Brachyiulus Berlese, 1884
  - pusillus (Leach, 1815)
- Diploiulus Berlese, 1884
  - caeruleocinctus (Wood, 1864)
  - latistriatus (Curtis, 1845)
  - luscus (Meinert, 1868)
  - punctatus (Leach, 1817)
  - truncorum Silvestri, 1896
  - ? boleti (Koch)
- Ophyiulus Berlese, 1884
  - pilosus (Newport, 1843)
  - ? terrestris (Linnaeus)

Nemasomidae Bollman, 1893
- Blaniulus Gervais, 1836
  - guttulatus (Bosc, 1791)
- Choneiulus Brölemann, 1921
  - palmatus (Nemec, 1895)
- Nemasoma Koch, 1847
  - leechi Chamberlin, 1951
  - nigrius Chamberlin, 1943
  - pium Chamberlin, 1918
  - sayanum Bollman, 1893
  - uta Chamberlin, 1912
  - ? varicorne Koch
- Nopoiulus Menge, 1851
  - minutus (Brandt, 1841)
  - ? punctulatus Menge
- Proteroiulus Silvestri, 1897
  - fuscus (Am Stein, 1857)
- Tiviulus Chamberlin, 1941
  - expressus Chamberlin, 1941

Paeromopidae Cook, 1895
- Aigon Chamberlin, 1949
  - parvior (Chamberlin, 1940)
  - rodocki Chamberlin, 1949
- Atopolus Chamberlin, 1949
  - chamberlini (Brölemann, 1922)
- Californiulus Verhoeff, 1938
  - dorsovittatus Verhoeff, 1938
- Klansolus Chamberlin, 1938
  - euphanus Chamberlin, 1938
  - socius Chamberlin, 1941
  - vicinus (Chamberlin, 1943)
  - yosemitensis (Chamberlin, 1941)
  - zantus Chamberlin, 1949
- Paeromopus Karsch, 1881
  - angusticeps (Wood, 1864)
  - cavicolens Chamberlin, 1953
  - eldoradus Chamberlin, 1941
  - lysiopetalinus Karsch, 1881
  - pistus Chamberlin, 1941

Paraiulidae Bollman, 1893
- Aliulus Causey, 1950
  - caddoensis Causey, 1950
  - carrollus Causey, 1950
  - rugosus (Bollman, 1887)
- Aniulus Chamberlin, 1940
  - adelphus Chamberlin, 1940
  - austinensis Chamberlin, 1940
  - bollmani Causey, 1952
  - brazonus Chamberlin, 1940
  - craterus Chamberlin, 1940
  - dorophor Chamberlin, 1940
  - fluviatilis Chamberlin, 1940
  - hopius Chamberlin, 1941
  - oreines Chamberlin, 1940
  - orientalis Causey, 1952
  - orthodoxus Chamberlin, 1946
  - prosoicus Chamberlin, 1940
- Bollmaniulus Verhoeff, 1926
  - catalinae (Chamberlin, 1940)
  - concolor (Chamberlin, 1940)
  - furcifer (Harger, 1872)
  - pachysomus (Chamberlin, 1940)
  - pearcei (Chamberlin, 1943)
  - pugetensis (Chamberlin, 1940)
  - rhodogeus (Chamberlin, 1940)
  - sinampus (Chamberlin, 1910)
  - signifer (Chamberlin, 1941)
  - spenceri Chamberlin, 1951
- Codiulus Chamberlin, 1940
  - etirus Chamberlin, 1941
  - oulogon Chamberlin, 1940
- Ethoiulus Chamberlin, 1918
  - amphelictus Chamberlin, 1918
  - bufonius Chamberlin, 1938
  - illinoensis (Causey, 1950)
  - ligifer (Chamberlin, 1919)
  - robustior (Chamberlin, 1918)
- Hakiulus Chamberlin, 1940
  - amophor Chamberlin, 1940
  - cyaneus (Chamberlin, 1920)
  - diversifrons (Wood, 1867)
  - neomexicanus (Chamberlin, 1903)
  - orthodox Chamberlin, 1940
  - parallellus (Chamberlin, 1931)
  - texanus (Chamberlin, 1916)
  - texensis Causey, 1952
  - victorianus (Chamberlin, 1916)
  - zakiwanus (Chamberlin, 1910)
- Gosiulus Chamberlin, 1940
  - conformatus Chamberlin, 1940
- Litiulus Chamberlin, 1940
  - alaskanus (Cook, 1904)
- Mulaikiulus Chamberlin, 1941
  - stanleius Chamberlin, 1941
- Okliulus Causey, 1950
  - beveli Causey, 1953
  - carpenteri Causey, 1950
- Oriulus Chamberlin, 1940
  - annectans (Chamberlin, 1921)
  - delus Chamberlin, 1940
  - eutypus Chamberlin, 1940
  - georgicolens Chamberlin, 1940
  - grayi Causey, 1950
  - medianus Chamberlin, 1940
  - nigrans (Chamberlin, 1918)
  - notus Chamberlin, 1940
  - venustus (Wood, 1864)
- Pseudojulus Bollman, 1887
  - obtectus Bollman, 1887
- Ptyoiulus Cook, 1895
  - impressus (Say, 1821)
  - coveanus Chamberlin, 1943
  - ectenes (Bollman, 1888)
  - georgiensis Chamberlin, 1943
- Saiulus Chamberlin, 1940
  - setifer Chamberlin, 1940
- Shoshoniulus Chamberlin, 1951
  - atlantus (Chamberlin, 1946)
  - idahoanus (Chamberlin, 1950)
- Simiulus Chamberlin, 1940
  - arius (Chamberlin, 1918)
- Sophiulus Chamberlin, 1940
  - lomondus Chamberlin, 1941
  - tivius (Chamberlin, 1912)
- Spathiulus Chamberlin, 1940
  - elegantulus Causey, 1950
  - leptus Chamberlin, 1940
  - trilobus Chamberlin, 1941
  - tuolumnus Chamberlin, 1950
- Taijulus Chamberlin, 1938
  - olympus (Causey, 1953)
  - tiganus (Chamberlin, 1910)
- Teniulus Chamberlin, 1951
  - parvior Chamberlin, 1951
  - setosior Chamberlin, 1951
- Tuniulus Chamberlin, 1941
  - hewitti (Chamberlin, 1919)
  - milpetanus (Chamberlin, 1940)
  - oregonensis (Wood, 1864)
- Uroblaniulus Attems, 1902
  - canadensis (Newport, 1844)
  - carolinensis Causey, 1953
  - dixinus Chamberlin, 1951
  - dux (Chamberlin, 1914)
  - exul Chamberlin, 1951
  - fumans (Chamberlin, 1943)
  - immaculatus (Wood, 1864)
  - montanus (Hoffman, 1949)
  - sandersoni (Causey, 1950)
  - stolidus Causey, 1952
- Ziniulus Chamberlin, 1940
  - aethes Chamberlin, 1940
  - medicolens Chamberlin, 1940
  - navajo Chamberlin, 1943

Zosteractiidae Loomis, 1943
- Zosteractis Loomis, 1943
  - interminata Loomis, 1943

Spirobolida Bollman, 1893 (Diplopoda:class)

Rhinocricidae Brölemann, 1913
- Eurhinocricus Brölemann, 1903
  - tidus (Chamberlin, 1947)
  - ? biolleyi Brölemann
- Rhinocricus Karsch, 1881
  - vagans Chamberlin, 1947
  - vancouveri Chamberlin, 1951
  - ? parcus (Karsch)

Atopetholidae Chamberlin, 1918
- Anelus Cook, 1911
  - reduncus Cook, 1911
- Arinolus Chamberlin, 1940
  - apachellus Chamberlin, 1941
  - chiricahuanus Chamberlin, 1947
  - dentatus (Cook, 1911)
  - hopinus Chamberlin, 1941
  - hospes (Cook, 1911)
  - lotus Loomis, 1953
  - nogalanus Chamberlin, 1941
  - pinus Chamberlin, 1941
  - torynophor Chamberlin, 1940
- Atopetholus Chamberlin, 1918
  - aneglus Chamberlin, 1920
  - barbaranus Chamberlin, 1949
  - californicus Chamberlin, 1918
  - carmelitus Chamberlin, 1940
  - fraternus Chamberlin, 1918
  - paroicus Chamberlin, 1941
  - pearcei Chamberlin, 1950
- Eurelus Cook, 1911
  - kerrensis Chamberlin & Mulaik, 1941
  - mulaiki Chamberlin, 1943
  - proximus Chamberlin & Mulaik, 1941
  - soleatus Cook, 1911
- Hesperolus Chamberlin, 1918
  - wheeleri Chamberlin, 1918
- Onychelus Cook, 1904
  - jaegeri Chamberlin, 1947
  - medolus Chamberlin, 1941
  - obustus Cook, 1904
- Orthichelus Chamberlin & Hoffman, 1950
  - michelbacheri (Verhoeff, 1938)
- Piedolus Chamberlin, 1930
  - utus Chamberlin, 1930
- Tidolus Chamberlin, 1949
  - parvus (Chamberlin, 1918)
- Toltecolus Chamberlin, 1943
  - parvunguis Hoffman, 1949
  - ? garcianus Chamberlin
- Watichelus Chamberlin, 1949
  - edentatus Loomis, 1949
  - parallelus Loomis, 1949
  - robustus Loomis, 1949
  - smithi (Chamberlin, 1947)

Spirobolidae Bollman, 1893
- Auxobolus Chamberlin, 1949
  - castaneus (Chamberlin, 1918)
  - claremontus (Chamberlin, 1918)
  - discipulus Chamberlin, 1949
  - ergus Chamberlin, 1949
  - friantus Chamberlin, 1949
  - monachus Chamberlin, 1949
  - simulatus Chamberlin, 1949
  - stebbinsi (Chamberlin, 1944)
- Californibolus Verhoeff, 1944
  - fredricksoni Causey, 1955
  - michelbacheri Verhoeff, 1944
  - oregonus Chamberlin, 1949
  - pontis Chamberlin, 1949
  - rectus Chamberlin, 1949
  - uncigerus (Wood, 1864)
  - utahensis (Chamberlin, 1925)
- Chicobolus Chamberlin, 1947
  - jucundus Causey, 1955
  - pilsbryi Chamberlin, 1947
  - spinigerus (Wood, 1864)
- Hiltonius Chamberlin, 1918
  - congregans Chamberlin, 1941
  - conservatus Chamberlin, 1947
  - hebes (Bollman, 1887)
  - mimus Chamberlin, 1941
  - palmaris Loomis, 1953
  - pius Chamberlin, 1941
  - pulchrus Chamberlin, 1918
  - thebanus Chamberlin, 1941
- Narceus Rafinesque, 1820
  - americanus (Beauvois, 1805)
  - annularis (Rafinesque, 1820)
  - atratus (Girard, 1853)
  - dolleyi (Loomis, 1943)
  - gordanus (Chamberlin, 1943)
  - keysi (Loomis, 1944)
  - melanior (Chamberlin, 1943)
  - oklahomae (Chamberlin, 1931)
  - orophilus (Chamberlin, 1943)
  - pensacolae (Bollman, 1887)
  - ramstadti (Chamberlin, 1943)
  - scotti (Chamberlin, 1943)
  - tinctorius Rafinesque, 1820
  - woodi (Humbert & Saussure, 1870)
- Tylobolus Cook, 1904
  - deses Cook, 1904

Spirostreptida Brandt, 1833 (Diplopoda:class)

Choctellidae Chamberlin & Hoffman, 1950
- Choctella Chamberlin, 1918
  - cumminsi Chamberlin, 1918

Spirostreptidae Attems, 1914
- Orthoporus Silvestri, 1897
  - arizonicus Loomis, 1953
  - boreus Chamberlin, 1947
  - crotonus Chamberlin, 1952
  - entomacis Chamberlin & Mulaik, 1941
  - flavior Chamberlin & Mulaik, 1941
  - ornatus (Girard, 1853)
  - pontis Chamberlin, 1947
  - producens Chamberlin, 1947
  - sanctus Chamberlin, 1947
  - vallicolens Chamberlin, 1943
  - wichitanus Chamberlin, 1931
  - ? diaporoides Silvestri
- Scaphiostrephus Brölemann, 1902
  - texicolens (Chamberlin, 1938)
  - ? fuscipes (Porat)

Cambalida Cook, 1895 (Diplopoda:class)

Cambalidae Bollman, 1893
- Alakene Chamberlin, 1941
  - simplex Chamberlin, 1941
- Buwatia Chamberlin, 1912
  - monterea Chamberlin, 1912
- Cambala Gray, 1832
  - annulata (Say, 1821)
  - arkansana Chamberlin, 1942
  - cara Causey, 1953
  - caeca Loomis, 1953
  - cristula Loomis, 1938
  - minor Bollman, 1889
  - ochra Chamberlin, 1942
  - saltillona Chamberlin, 1943
  - texana Loomis, 1938
  - washingtonensis Causey, 1954
- Eclomus Chamberlin, 1952
  - speobius (Chamberlin, 1952)
- Mimolene Chamberlin, 1941
  - oregona Chamberlin, 1941
- Nannolene Bollman, 1887
  - burkei (Bollman, 1887)
  - catalina Chamberlin, 1941
  - cincta Chamberlin, 1941
  - corticolens Chamberlin, 1951
  - dorothea Chamberlin, 1941
  - keiferi Chamberlin, 1943
  - minor Loomis, 1938
  - personifer Chamberlin, 1941
  - violacea Loomis, 1938
- Odachurus Loomis, 1938
  - petasatus Loomis, 1938
- Paiteya Chamberlin, 1910
  - errans Chamberlin, 1910
- Pharodere Loomis, 1938
  - radiata Loomis, 1938
- Platydere Loomis, 1938
  - caeca Loomis, 1938
- Tridere Loomis, 1938
  - chelopa Loomis, 1938

Leioderidae Schubart, 1946
- Doilene Chamberlin, 1941
  - carmela Chamberlin, 1941
- Endere Loomis, 1938
  - disora Loomis, 1938
- Leiodere Loomis, 1938
  - angelorum Chamberlin, 1943
  - dasyura Loomis, 1938
  - nana Loomis, 1938
  - torreyana Loomis, 1938
- Tigolene Chamberlin, 1941
  - clementinus Chamberlin, 1941
- Titsona Chamberlin, 1912
  - sima Chamberlin, 1912

Platydesmida Saussure, 1860 (Diplopoda:class)

Andrognathidae Cope, 1869
- Andrognathus Cope, 1869
  - corticarius Cope, 1869
- Brachycybe Wood, 1864
  - lecontei Wood, 1864
  - petasata Loomis, 1936
  - potterinus Chamberlin, 1941
  - producta Loomis, 1936
  - rosea Murray, 1877
  - tuolumne Chamberlin, 1953
- Eucybe Chamberlin, 1941
  - clarus Chamberlin, 1941
  - longior Chamberlin, 1950
- Gosodesmus Chamberlin, 1922
  - claremontanus Chamberlin, 1922
- Ischnocybe Cook & Loomis, 1928
  - plicata Cook & Loomis, 1928
- Mitocybe Cook & Loomis, 1928
  - auriportae Cook & Loomis, 1928
- Stenocybe Chamberlin, 1950
  - waipea Chamberlin, 1950

Polyzoniida Gervais, 1844 (Diplopoda:class)

Polyzoniidae Gervais, 1844
- Bdellozonium Cook & Loomis, 1928
  - cerviculatum Cook & Loomis, 1928
  - rothi Chamberlin, 1950
  - sequoium Chamberlin, 1941
- Buotus Chamberlin, 1940
  - carolinus Chamberlin, 1940
- Buzonium Cook & Loomis, 1928
  - crassipes Cook & Loomis, 1928
- Euzonium Chamberlin, 1950
  - crucis Chamberlin, 1950
- Hypozonium Cook, 1904
  - anurum Cook, 1904
- Pizonium Chamberlin, 1950
  - crescentis Chamberlin, 1950
- Polyzonium Brandt, 1834
  - bikermani Causey, 1951
  - bivirgatum (Wood, 1864)
  - cryptocephalum (McNeill, 1887)
  - germanicum Brandt
- Siphonotus Brandt, 1837
  - purpureus Pocock, 1894
  - brasiliensis Brandt

Siphonophoridae Newport, 1845
- Illacme Cook & Loomis, 1928
  - plenipes Cook & Loomis, 1928
- Siphonacme Cook & Loomis, 1928
  - lyttoni Cook & Loomis, 1928
- Siphonophora Brandt, 1837
  - limitare Loomis, 1936
  - texascolens Chamberlin & Mulaik, 1941
  - portoricensis Brandt

Ommatoiulus (Diplopoda:class)

sabulosus

Markku Savela