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)

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)

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)

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)
- 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)
- 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
- 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
  - racovitzi 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
- Psochodesmus Cook, 1896
  - crescentis Cook, 1896

Vanhoeffeniidae Attems, 1914
- Ophiodesmus Cook, 1895
  - albonanus (Latzel, 1895)
- 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
  - christinaus 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)
- 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)

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 & Bauer, 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)

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
- Ophyiulus Berlese, 1884
  - pilosus (Newport, 1843)

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
- Nopoiulus Menge, 1851
  - minutus (Brandt, 1841)
- 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)

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

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
- 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)

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
- Scaphiostrephus Brölemann, 1902
  - texicolens (Chamberlin, 1938)

Cambalida Cook, 1895 (Diplopoda)

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)

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)

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)
- Siphonotus Brandt, 1837
  - purpureus Pocock, 1894

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

Ommatoiulus (Diplopoda)

sabulosus

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