| Allopocockia rotundata Kraus, 1954 | |
| Allopocockia tylopus Pocock, 1908 | Deseret mountainsnail |
| Anadenobolus angusticollis Karsch, 1881 | |
| Anadenobolus aposematus Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus approximans Hoffman, 1950 | Kern shoulderband |
| Anadenobolus arboreus Saussure, 1859 | Pygmy mountainsnail |
| Anadenobolus atoyacus Pocock, 1907 | San Joaquin shoulderband |
| Anadenobolus aurocinctus Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus aztecus Saussure, 1859 | Pygmy mountainsnail |
| Anadenobolus brevicollis Voges, 1878 | Morris Canyon shoulderband |
| Anadenobolus centralis Chamberlin, 1922 | |
| Anadenobolus chamberlini Schubart, 1951 | |
| Anadenobolus chichen Chamberlin, 1953 | Catalina mountainsnail |
| Anadenobolus chichimecus Saussure, 1859 | Pygmy mountainsnail |
| Anadenobolus chitarianus Chamberlin, 1933 | Cuyama shoulderband |
| Anadenobolus costaricensis Brölemann, 1905 | |
| Anadenobolus dugesi Bollman, 1893 | Foothill shoulderband |
| Anadenobolus edenus Chamberlin, 1947 | Chuckwalla Spring desertsnail |
| Anadenobolus ferrugineus Daday, 1889 | Silky shoulderband |
| Anadenobolus hegedusi Daday, 1889 | Silky shoulderband |
| Anadenobolus hegedussi Daday, 1889 | |
| Anadenobolus insulatus (Chamberlin, 1925) | ⇒ Anadenobolus ocraceus Brolemann, 1900 |
| Anadenobolus ixtapanus Chamberlin, 1943 | Budded threetooth |
| Anadenobolus lamprus Chamberlin, 1943 | Budded threetooth |
| Anadenobolus malkini Chamberlin, 1956 | |
| Anadenobolus marci Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus mayanus Chamberlin, 1947 | Chuckwalla Spring desertsnail |
| Anadenobolus mertensi Kraus, 1954 | Chiricahua mountainsnail |
| Anadenobolus monilicornis von Porat, 1876 | Bumble bee millipede |
| Anadenobolus morelus Chamberlin, 1943 | Budded threetooth |
| Anadenobolus motulensis Chamberlin, 1938 | San Lorenzo shoulderband |
| Anadenobolus nicaraguanus Chamberlin, 1922 | |
| Anadenobolus nodosicollis Brölemann, 1905 | |
| Anadenobolus obesus Brölemann, 1900 | Sidewinder shoulderband |
| Anadenobolus obesus obesus Brölemann, 1900 | |
| Anadenobolus obesus rubicundus Brölemann, 1905 | |
| Anadenobolus ochraceus Brölemann, 1900 | |
| Anadenobolus ocraceus Brolemann, 1900 | Sidewinder shoulderband |
| Anadenobolus olivaceus Newport, 1844 | Mendocino shoulderband |
| Anadenobolus pedrocola Chamberlin, 1947 | Chuckwalla Spring desertsnail |
| Anadenobolus plesius Chamberlin, 1914 | Kings shoulderband |
| Anadenobolus potosianus Chamberlin, 1941 | Surf shoulderband |
| Anadenobolus putealis Loomis, 1971 | Huachuca mountainsnail |
| Anadenobolus rarior Chamberlin, 1918 | Sierra shoulderband |
| Anadenobolus rixi Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus rogersi Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus salleanus Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus scobinatus Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus simulans Chamberlin, 1922 | |
| Anadenobolus smithi Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus socius Chamberlin, 1918 | Sierra shoulderband |
| Anadenobolus stolli Pocock, 1907 | Point Pinos shoulderband |
| Anadenobolus tejerianus Chamberlin, 1953 | Catalina mountainsnail |
| Anadenobolus toltecus Saussure, 1859 | Pygmy mountainsnail |
| Anadenobolus totonacus Saussure, 1860 | Fringed mountainsnail |
| Anadenobolus zapotecus Saussure, 1860 | Fringed mountainsnail |
| Anelus richardsoni Pocock, 1908 | Deseret mountainsnail |
| Arolus purulanus Chamberlin, 1922 | |
| Aztecolus collaris Chamberlin, 1953 | |
| Aztecolus fratrellus (Chamberlin, 1953) | ⇒ Hiltonius carpinus vulcan Chamberlin, 1952 |
| Aztecolus nigrior Chamberlin, 1941 | Deep Slide mountainsnail |
| Aztecolus pablillo Chamberlin, 1947 | Kyle Canyon mountainsnail |
| Aztecolus productus Loomis, 1968 | Boulder Pile mountainsnail |
| Aztecolus vulcan Chamberlin, 1952 | |
| Barrobolus grammicus (Chamberlin, 1925) | ⇒ Spirobolellus grammicus Chamberlin, 1925 |
| Centrelus boreus Loomis, 1966 | White desertsnail |
| Centrelus falcatus Cook, 1911 | Lyre mantleslug |
| Centrelus heteropygus Saussure & H..., 1869 | |
| Centrelus neglectus Carl, 1919 | Thousand Palms desertsnail |
| Centrelus nietanus (Saussure, 1860) | ⇒ Saussurobolus nietanus Saussure, 1860 |
| Centrelus nigrescens Chamberlin, 1923 | Buttressed threetooth |
| Centrelus spinosus Loomis, 1968 | Morongo desertsnail |
| Centrelus vulvanus Karsch, 1881 | |
| Centrelus zacatecus Chamberlin, 1947 | Chuckwalla Spring desertsnail |
| Chelogonobolus atriculus Pocock, 1908 | Deseret mountainsnail |
| Chelogonobolus nahuus Humbert & Sa..., 1869 | Golden zachrysia |
| Cubobolus pertenuis Loomis, 1938 | |
| Cyclothyrophorus salvini Pocock, 1908 | |
| Ergene setosa Chamberlin, 1943 | Costate mountainsnail |
| Eurhinocricus barrios Chamberlin, 1953 | Garden zachrysia |
| Eurhinocricus biolleyi Brölemann, 1903 | Mojave shoulderband |
| Eurhinocricus chichivacus Chamberlin, 1953 | Garden zachrysia |
| Eurhinocricus cooki Loomis, 1961 | Shasta hesperian |
| Eurhinocricus eutypus Chamberlin, 1953 | Garden zachrysia |
| Eurhinocricus fissus Verhoeff, 1937 | Sunday shoulderband |
| Eurhinocricus omiltemae Pocock, 1908 | Deseret mountainsnail |
| Eurhinocricus parvissimus Hoffman, 1953 | Yucca shoulderband |
| Eurhinocricus pygmoides Chambelin, 1933 | |
| Eurhinocricus storkani Verhoeff, 1937 | Sunday shoulderband |
| Glosselus musarum (Cook, 1911) | ⇒ Leptogoniulus sorornus Butler, 1876 |
| Hiltonius carpinus vulcan Chamberlin, 1952 | |
| Hiltonius vulcan Chamberlin, 1953 | |
| Leptogoniulus sorornus Butler, 1876 | Breckenridge shoulderband |
| Mannobolus peninsularis Loomis, 1968 | Boulder Pile mountainsnail |
| Messicobolus amulensis Pocock, 1909 | |
| Messicobolus cinctus Chamberlin, 1922 | |
| Messicobolus collaris Chamberlin, 1953 | Catalina mountainsnail |
| Messicobolus cratus Chamberlin, 1922 | |
| Messicobolus distinctus Kraus, 1954 | Chiricahua mountainsnail |
| Messicobolus eximius Porat, 1888 | Socorro mountainsnail |
| Messicobolus godmani Pocock, 1908 | Deseret mountainsnail |
| Messicobolus hoogstraali Chamberlin, 1941 | Deep Slide mountainsnail |
| Messicobolus hoplomerus Pocock, 1908 | Deseret mountainsnail |
| Messicobolus magnificus Causey, 1954 | Cave Creek mountainsnail |
| Messicobolus monticola Pocock, 1908 | Deseret mountainsnail |
| Messicobolus mundus Chamberlin, 1953 | Catalina mountainsnail |
| Messicobolus mystecus Chamberlin, 1953 | Fringed mountainsnail |
| Messicobolus pictus Chamberlin, 1922 | |
| Messicobolus pilsbryi Chamberlin, 1947 | Kyle Canyon mountainsnail |
| Messicobolus raui Chamberlin, 1941 | Deep Slide mountainsnail |
| Messicobolus santanus Chamberlin, 1953 | Catalina mountainsnail |
| Messicobolus semiserratus Loomis, 1966 | Hacheta mountainsnail |
| Messicobolus stolli Pocock, 1908 | Deseret mountainsnail |
| Messicobolus tardus Causey, 1954 | Cave Creek mountainsnail |
| Messicobolus tepanecus Saussure, 1859 | Pygmy mountainsnail |
| Messicobolus totonacus Chamberlin, 1943 | Costate mountainsnail |
| Messicobolus tzendalus Saussure, 1860 | Fringed mountainsnail |
| Messicobolus virilis Chamberlin, 1922 | |
| Messicobolus zonatus Carl, 1918 | |
| Microspirobolus trifasciatus (Loomis, 1964) | ⇒ Spirobolellus trifasciatus Loomis, 1964 |
| Morelene munda (Chamberlin, 1943) | ⇒ Morelene mundus Chamberlin, 1943 |
| Oxobolus cinctus (Chamberlin, 1922) | ⇒ Messicobolus cinctus Chamberlin, 1922 |
| Oxobolus cratus (Chamberlin, 1922) | ⇒ Messicobolus cratus Chamberlin, 1922 |
| Oxobolus mundus (Chamberlin, 1953) | ⇒ Messicobolus mundus Chamberlin, 1953 |
| Oxobolus santanus (Chamberlin, 1953) | ⇒ Messicobolus santanus Chamberlin, 1953 |
| Oxobolus virilis (Chamberlin, 1922) | ⇒ Messicobolus virilis Chamberlin, 1922 |
| Oxypyge benedicta Chamberlin, 1925 | |
| Oxypyge benedictus (Chamberlin, 1925) | ⇒ Oxypyge benedicta Chamberlin, 1925 |
| Oxypyge caudicurtus | |
| Oxypyge confusa Chamberlin, 1922 | |
| Oxypyge curticauda Chamberlin, 1953 | Garden zachrysia |
| Oxypyge curticaudus (Chamberlin, 1953) | ⇒ Oxypyge curticauda Chamberlin, 1953 |
| Oxypyge equalis Chamberlin, 1922 | |
| Oxypyge ferruginipes (Chamberlin, 1922) | ⇒ Zipyge ferruginipes Chamberlin, 1922 |
| Oxypyge isolata Chamberlin, 1925 | |
| Oxypyge isolatus (Chamberlin, 1925) | ⇒ Oxypyge isolata Chamberlin, 1925 |
| Oxypyge lapidicina Chamberlin, 1922 | |
| Oxypyge mesites Chamberlin, 1922 | |
| Oxypyge socia Chamberlin, 1922 | |
| Oxypyge varicolor Silvestri, 1896 | Ancha mountainsnail |
| Oxypygides lapidicina (Chamberlin, 1922) | ⇒ Oxypyge lapidicina Chamberlin, 1922 |
| Oxypygides lapidicinus Chamberlin, 1922 | |
| Oxypygides mesites (Chamberlin, 1922) | ⇒ Oxypyge mesites Chamberlin, 1922 |
| Petenobolus antiquorum Loomis, 1968 | Boulder Pile mountainsnail |
| Petenobolus mayanus Loomis, 1968 | Boulder Pile mountainsnail |
| Reddellobus troglobius Causey, 1975 | Northern threetooth |
| Rhinocricus barrios | |
| Rhinocricus centralis (Carl, 1912) | ⇒ Salpidobolus centralis centralis Carl, 1912 |
| Rhinocricus chitarianus (Chamberlin, 1933) | ⇒ Anadenobolus chitarianus Chamberlin, 1933 |
| Rhinocricus entypus Chamberlin, 1955 | |
| Rhinocricus insulatus (Chamberlin, 1925) | ⇒ Anadenobolus ocraceus Brolemann, 1900 |
| Rhinocricus malkini (Chamberlin, 1956) | ⇒ Anadenobolus malkini Chamberlin, 1956 |
| Rhinocricus mertensi Kraus, 1954 | |
| Rhinocricus mucronatus Brölemann, 1911 | |
| Rhinocricus nicaraguanus (Chamberlin, 1922) | ⇒ Anadenobolus nicaraguanus Chamberlin, 1922 |
| Rhinocricus obesus (Brölemann, 1900) | ⇒ Anadenobolus obesus obesus Brölemann, 1900 |
| Rhinocricus ocraceus (Brölemann, 1900) | ⇒ Anadenobolus ocraceus Brolemann, 1900 |
| Rhinocricus pertenuis (Loomis, 1938) | ⇒ Cubobolus pertenuis Loomis, 1938 |
| Rhinocricus petenensis | |
| Rhinocricus plesius (Chamberlin, 1914) | ⇒ Anadenobolus plesius Chamberlin, 1914 |
| Rhinocricus pygmoides (Chamberlin, 1933) | ⇒ Eurhinocricus biolleyi Brölemann, 1903 |
| Rhinocricus rarior (Chamberlin, 1918) | ⇒ Anadenobolus rarior Chamberlin, 1918 |
| Rhinocricus simulans (Chamberlin, 1922) | ⇒ Anadenobolus simulans Chamberlin, 1922 |
| Rhinocricus tristani Pocock, 1910 | |
| Rhinocricus wheeleri (Chamberlin, 1922) | ⇒ Eurhinocricus biolleyi Brölemann, 1903 |
| Salpidobolus centralis centralis Carl, 1912 | |
| Schmidtolus chichivacus (Chamberlin, 1953) | ⇒ Eurhinocricus chichivacus Chamberlin, 1953 |
| Schmidtolus parvior Chamberlin, 1953 | Garden zachrysia |
| Scobinomus serratus Loomis, 1953 | Eastern desertsnail |
| Spirobolellus grammicus Chamberlin, 1925 | Merced Canyon shoulderband |
| Spirobolellus trifasciatus Loomis, 1964 | Diablo mountainsnail |
| Spirobolus gracilis Bollman, 1893 | |
| Spirostreptus corrugatus Porat, 1888 | |
| Tarascolus bolivari Chamberlin, 1943 | Costate mountainsnail |
| Tarascolus clarus Chamberlin, 1943 | Costate mountainsnail |
| Tarascolus reflexus Loomis, 1976 | |
| Toltecolus kerrensis Chamberlin &..., 1941 | |
| Trigoniulus amnestus Chamberlin, 1945 | |
| Trigoniulus megaloproctus Pocock, 1894 | |
| Trigoniulus remotus Pocock, 1893 | |
| Tylobolus claremontus Chamberlin, 1918 | Redwood hesperian |
| Typhlobolellus fortinus Shear, 1974 | Asian trampsnail |
| Typhlobolellus whiteheadi Hoffman, 1969 | |
| Yucatobolus spukilensis Chamberlin, 1938 | Bigtree shoulderband |
| Zipyge ferruginipes Chamberlin, 1922 | |
