| Arctogeophilus apacheus | |
| Arctogeophilus atopus Chamberlin, 1902 | |
| Arctogeophilus corvallis Chamberlin, 1941 | Deep Slide mountainsnail |
| Arctogeophilus fulvus Wood, 1862 | |
| Arctogeophilus glacialis Attems, 1909 | |
| Arctogeophilus insularis Attems, 1947 | |
| Arctogeophilus melanonotus Wood, 1862 | |
| Arctogeophilus quadratus Wood, 1867 | Hairy helicellid |
| Arctogeophilus sachalinus Verhoeff, 1934 | Ostracods |
| Arctogeophilus shelfordi Chamberlin, 1946 | Rincon talussnail |
| Arctogeophilus umbraticus McNeill, 1887 | Eastern saw-toothed centipede |
| Arenophilus bipuncticeps Wood, 1862 | Northern short-clawed centipede |
| Arenophilus iugans Chamberlin, 1944 | |
| Arenophilus osborni Gunthorp, 1913 | |
| Arenophilus psednus Crabill, 1969 | Western River Cruiser |
| Arenophilus rotarius Chamberlin, 1943 | Budded threetooth |
| Arenophilus unaster Chamberlin, 1909 | |
| Arenophilus vigans | |
| Arenophilus watsingus Chamberlin, 1912 | Yosemite shoulderband |
| Geophilus admarinus Chamberlin, 1952 | Schell Creek mountainsnail |
| Geophilus alaskanus Cook, 1904 | Rocky mountainsnail |
| Geophilus ampyx Crabill, 1954 | |
| Geophilus angustatus Eschscholtz, 1823 | |
| Geophilus anonyx Chamberlin, 1941 | Surf shoulderband |
| Geophilus antipodium Pocock, 1891 | |
| Geophilus atopodon Chamberlin, 1903 | |
| Geophilus aztecus Humbert & De..., 1869 | |
| Geophilus baeckstroemi Verhoeff, 1924 | |
| Geophilus becki Chamberlin, 1951 | Anza shoulderband |
| Geophilus brevicornis (Wood, 1862) | ⇒ Stenotaenia linearis C.L.Koch, 1835 |
| Geophilus brunneus McNeill, 1887 | |
| Geophilus californiensis (Bollman, 1887) | ⇒ Taiyuna occidentalis Meinert, F, 1886 |
| Geophilus cayugae Chamberlin, 1904 | |
| Geophilus challengeri Pocock, 1891 | Blackblotch Pompano |
| Geophilus claremontus Chamberlin, 1909 | |
| Geophilus compactus Attems, 1934 | |
| Geophilus crenulatus Silvestri, 1936 | |
| Geophilus delotus Chamberlin, 1941 | Surf shoulderband |
| Geophilus electricus Linnaeus, 1758 | |
| Geophilus embius Chamberlin, 1912 | |
| Geophilus flavus De Geer, 1778 | Boreal yellow-headed soil centipede |
| Geophilus foveatus McNeill, 1887 | Spring mountainsnail |
| Geophilus fruitanus Chamberlin, 1928 | |
| Geophilus georgianus (Meinert, 1886) | ⇒ Arenophilus bipuncticeps Wood, 1862 |
| Geophilus geronimo Chamberlin, 1912 | |
| Geophilus glaber Bollman, 1887 | Point Reyes shoulderband |
| Geophilus glyptus Chamberlin, 1902 | |
| Geophilus huronicus (Meinert, 1885) | ⇒ Arenophilus bipuncticeps Wood, 1862 |
| Geophilus huttoni Pocock, 1891 | |
| Geophilus indianae McNeill, 1887 | |
| Geophilus insculptus Attems, 1895 | |
| Geophilus kobelti Attems, 1903 | |
| Geophilus lanius Brölemann, 1896 | |
| Geophilus leionyx Chamberlin, 1938 | San Lorenzo shoulderband |
| Geophilus marginatus Lucas, 1849 | |
| Geophilus missouriensis (Chamberlin, 1928) | ⇒ Geophilus oweni Bollman, 1887 |
| Geophilus mordax Meinert, 1886 | Pitted soil centipede |
| Geophilus mustiquensis Pocock, 1893 | |
| Geophilus nasintus Chamberlin, 1909 | |
| Geophilus nealotus Chamberlin, 1902 | |
| Geophilus nicolanus Chamberlin, 1940 | Cape Fear threetooth |
| Geophilus okolonae Bollman, 1888 | Redwood shoulderband |
| Geophilus oregonus Chamberlin, 1941 | Surf shoulderband |
| Geophilus oweni Bollman, 1887 | Great Plains soil centipede |
| Geophilus parki Auerbach, 1954 | |
| Geophilus phanus Chamberlin, 1943 | Costate mountainsnail |
| Geophilus piedus Chamberlin R., 1930 | Argus desertsnail |
| Geophilus provocator Pocock, 1891 | |
| Geophilus proximus C.L.Koch, 1847 | |
| Geophilus regnans Chamberlin, 1904 | |
| Geophilus rex Chamberlin, 1912 | |
| Geophilus ridleyi Pocock, 1890 | Jointvetch |
| Geophilus rubens (Say, 1821) | ⇒ Geophilus vittatus Raffinesque, 1820 |
| Geophilus salemensis (Bollman, 1887) | ⇒ Geophilus mordax Meinert, 1886 |
| Geophilus secundus Chamberlin, 1912 | |
| Geophilus setiger Bollman, 1887 | Point Reyes shoulderband |
| Geophilus shoshoneus Chamberlin, 1925 | |
| Geophilus smithi Bollman, 1889 | |
| Geophilus strigosus McNeill, 1887 | Spring mountainsnail |
| Geophilus tampophor Chamberlin, 1953 | Catalina mountainsnail |
| Geophilus terranovae Palmen, 1954 | |
| Geophilus transitus Chamberlin, 1941 | Surf shoulderband |
| Geophilus truncorum Bergsøe & M..., 1866 | |
| Geophilus varians McNeill, 1887 | |
| Geophilus venezuelae Silvestri, 1897 | Atlantic threetooth |
| Geophilus virginiensis Bollman, 1889 | |
| Geophilus vittatus Raffinesque, 1820 | Diamondback soil centipede |
| Geophilus winnetui Attems, 1947 | |
| Geophilus yavapainus Chamberlin, 1941 | Surf shoulderband |
| Pachymerium armatum Silvestri, 1905 | |
| Pachymerium clementinum | |
| Pachymerium cubanum Matic, Negre..., 1977 | |
| Pachymerium euphanum | |
| Pachymerium ferrugineum (C.L.Koch, 1835) | ⇒ Ribautia peruana Verhoeff, 1941 |
| Pachymerium fossor | |
| Pachymerium godmani Pocock, 1896 | |
| Pachymerium habrum | |
| Pachymerium hesperum | |
| Pachymerium idium Chamberlin, 1960 | Citrine Forktail |
| Pachymerium pereirai Shear & Peck, 1992 | |
| Pachymerium rioindianum Matic, Negre..., 1977 | |
| Pachymerium salvini Pocock, 1896 | |
| Pachymerium stollii Pocock, 1896 | |
