| Aliulus caddoensis Causey, 1950 | |
| Aliulus carrollus Causey, 1950 | |
| Aliulus rugosus Bollman, 1887 | Mineral Creek mountainsnail |
| Aniulus acuminatus Loomis, 1976 | |
| Aniulus adelphus Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus annectans Chamberlin, 1921 | |
| Aniulus austinensis Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus bollmani Causey, 1952 | |
| Aniulus brazonus Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus craterus Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus dorophor Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus fili Loomis, 1975 | Northwest hesperian |
| Aniulus fluviatilis Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus garius Chamberlin, 1912 | |
| Aniulus hopius Chamberlin, 1941 | Deep Slide mountainsnail |
| Aniulus nigrans Chamberlin, 1918 | Sierra shoulderband |
| Aniulus oreines Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus orientalis Causey, 1952 | |
| Aniulus orthodoxus Chamberlin, 1946 | San Carlos threeband |
| Aniulus paiutus Chamberlin, 1925 | Merced Canyon shoulderband |
| Aniulus paludicolens Causey, 1967 | |
| Aniulus paludicolus | |
| Aniulus prosoicus Chamberlin, 1940 | Cape Fear threetooth |
| Aniulus vestigialis Loomis, 1959 | |
| Apacheiulus guadelupensis Loomis, 1975 | Northwest hesperian |
| Apacheiulus pinalensis Loomis, 1968 | Boulder Pile mountainsnail |
| Arvechambus australis Causey, 1963 | Avawatz desertsnail |
| Arvechambus hummi Causey, 1963 | Avawatz desertsnail |
| Arvechambus weemsi Causey, 1963 | Avawatz desertsnail |
| Bollmaniulus catalinae Chamberlin, 1940 | Pallid mountainsnail |
| Bollmaniulus concolor Chamberlin, 1940 | Pallid mountainsnail |
| Bollmaniulus furcifer Harger, 1872 | Borrego desertsnail |
| Bollmaniulus hewitti Chamberlin, 1919 | |
| Bollmaniulus montanae Chamberlin, 1940 | Pallid mountainsnail |
| Bollmaniulus olympus Chamberlin, 1940 | Mountain Spring desertsnail |
| Bollmaniulus pachysomus Chamberlin, 1940 | Pallid mountainsnail |
| Bollmaniulus pearcei Chamberlin, 1943 | Budded threetooth |
| Bollmaniulus pugetensis Chamberlin, 1940 | Cape Fear threetooth |
| Bollmaniulus rhodogeus Chamberlin, 1940 | Cape Fear threetooth |
| Bollmaniulus signifer Chamberlin, 1940 | Pallid mountainsnail |
| Bollmaniulus spenceri Chamberlin, 1951 | |
| Bollmaniulus tiganus Chamberlin, 1910 | Joshua Tree desertsnail |
| Caliulus catalinae (Chamberlin, 1940) | ⇒ Bollmaniulus catalinae Chamberlin, 1940 |
| Caliulus pachysomus (Chamberlin, 1940) | ⇒ Bollmaniulus pachysomus Chamberlin, 1940 |
| Caliulus pearcei (Chamberlin, 1943) | ⇒ Bollmaniulus pearcei Chamberlin, 1943 |
| Caliulus pugetensis (Chamberlin, 1940) | ⇒ Bollmaniulus pugetensis Chamberlin, 1940 |
| Caliulus rhodogeus (Chamberlin, 1940) | ⇒ Bollmaniulus rhodogeus Chamberlin, 1940 |
| Caliulus signifer (Chamberlin, 1940) | ⇒ Bollmaniulus signifer Chamberlin, 1940 |
| Codiulus etirus Chamberlin, 1941 | Deep Slide mountainsnail |
| Codiulus milpetanus (Chamberlin, 1940) | ⇒ Tuniulus milpitanus Chamberlin, 1940 |
| Codiulus oulogon Chamberlin, 1940 | Cape Fear threetooth |
| Ethoiulus cyaneus (Chamberlin, 1920) | ⇒ Hakiulus cyaneus Chamberlin, 1920 |
| Ethojulus amphelictus Chamberlin, 1918 | Redwood hesperian |
| Ethojulus bufonius (Chamberlin, 1938) | ⇒ Gyniulus bufonius Chamberlin, 1938 |
| Ethojulus illinoensis Causey, 1950 | |
| Ethojulus ligifer (Chamberlin, 1919) | ⇒ Parajulus ligifer Chamberlin, 1919 |
| Ethojulus robustior Chamberlin, 1918 | Sierra shoulderband |
| Georgiulus hubrichti Hoffman, 1992 | |
| Georgiulus paynei Hoffman, 1992 | |
| Gosiulus aethes Chamberlin, 1940 | Pallid mountainsnail |
| Gosiulus ambiguus Loomis, 1959 | Papago talussnail |
| Gosiulus conformatus Chamberlin, 1940 | Cape Fear threetooth |
| Gosiulus medicolens Chamberlin, 1940 | Pallid mountainsnail |
| Gosiulus nati Loomis, 1963 | Sierra Ancha talussnail |
| Gosiulus rossi | |
| Gyniulus bufonius Chamberlin, 1938 | San Lorenzo shoulderband |
| Gyniulus domesticus Loomis, 1968 | Boulder Pile mountainsnail |
| Gyniulus lacustrinus Loomis, 1968 | Boulder Pile mountainsnail |
| Gyniulus myakkensis Loomis, 1963 | Wreathed cactussnail |
| Hakiulus amophor Chamberlin, 1940 | Cape Fear threetooth |
| Hakiulus cyaneus Chamberlin, 1920 | |
| Hakiulus diversifrons Wood, 1867 | Hairy helicellid |
| Hakiulus minori Causey, 1952 | |
| Hakiulus occidentalis Loomis, 1975 | Northwest hesperian |
| Hakiulus orthodox Chamberlin, 1940 | Cape Fear threetooth |
| Hakiulus parallelus (Chamberlin, 1940) | ⇒ Hakiulus diversifrons Wood, 1867 |
| Hakiulus texanus (Chamberlin, 1916) | ⇒ Hakiulus texensis Causey, 1952 |
| Hakiulus texensis Causey, 1952 | |
| Hakiulus victorianus Chamberlin, 1916 | Bicolor cactussnail |
| Hakiulus zakiwanus Chamberlin, 1910 | Joshua Tree desertsnail |
| Karteroiulus ocellatus Loomis, 1972 | |
| Litiulus alaskanus Cook, 1904 | Keeled mountainsnail |
| Mexicoiulus dampfi Verhoeff, 1926 | Resting Spring desertsnail |
| Mulaikiulus orbus | |
| Mulaikiulus stanleius Chamberlin, 1941 | Deep Slide mountainsnail |
| Nesoressa crawfordi Shelley & Me..., 2006 | |
| Okliulus beveli Causey, 1953 | Apache talussnail |
| Okliulus carpenteri Causey, 1950 | |
| Okliulus foliatus Loomis, 1968 | Boulder Pile mountainsnail |
| Oriulus delus Chamberlin, 1940 | Cape Fear threetooth |
| Oriulus eutypus Chamberlin, 1940 | Cape Fear threetooth |
| Oriulus georgicolens Chamberlin, 1940 | Cape Fear threetooth |
| Oriulus grandiceps Loomis, 1968 | Boulder Pile mountainsnail |
| Oriulus grayi Causey, 1950 | |
| Oriulus medianus Chamberlin, 1940 | Cape Fear threetooth |
| Oriulus notus Chamberlin, 1940 | Cape Fear threetooth |
| Oriulus venustus Wood, 1864 | Grand Coulee mountainsnail |
| Paraiulus olmecus Humbert & Sa..., 1869 | |
| Paraiulus oregonensis (Attems, 1903) | ⇒ Parajulus oregonensis Attems, 1903 |
| Paraiulus pueblanus (Chamberlin, 1943) | ⇒ Parajulus pueblanus Chamberlin, 1943 |
| Paraiulus tiganus (Chamberlin, 1910) | ⇒ Bollmaniulus tiganus Chamberlin, 1910 |
| Paraiulus zempoalus (Chamberlin, 1943) | ⇒ Parajulus zempoalus Chamberlin, 1943 |
| Parajulus alaskanus (Cook, 1905) | ⇒ Litiulus alaskanus Cook, 1904 |
| Parajulus annectans (Chamberlin, 1921) | ⇒ Aniulus annectans Chamberlin, 1921 |
| Parajulus arius (Chamberlin, 1918) | ⇒ Simiulus arius Chamberlin, 1918 |
| Parajulus boreus | |
| Parajulus castaneus (Bollman, 1887) | ⇒ Hakiulus diversifrons Wood, 1867 |
| Parajulus cockerelli ♰ R. W. Miner, 1926 | |
| Parajulus distans | |
| Parajulus ectenes (Bollman, 1888) | ⇒ Ptyoiulus ectenes Bollman, 1887 |
| Parajulus ellipticus Bollman, 1887 | |
| Parajulus fortinus | |
| Parajulus gyratus Loomis, 1969 | |
| Parajulus hewitti (Chamberlin, 1919) | ⇒ Bollmaniulus hewitti Chamberlin, 1919 |
| Parajulus impressus Say, 1821 | |
| Parajulus lateralis Loomis, 1969 | |
| Parajulus leucoclius (Chamberlin, 1922) | ⇒ Thriniulus leucoclius Chamberlin, 1922 |
| Parajulus ligifer Chamberlin, 1919 | |
| Parajulus mimeticus | |
| Parajulus negosus | |
| Parajulus neomexicanus Chamberlin, 1903 | |
| Parajulus nigrans (Chamberlin, 1918) | ⇒ Aniulus nigrans Chamberlin, 1918 |
| Parajulus nigrens Chamberlin, 1918 | |
| Parajulus obtectus (Bollman, 1887) | ⇒ Pseudojulus obtectus Bollman, 1887 |
| Parajulus olmecus Humbert & Sa..., 1869 | Richinbar talussnail |
| Parajulus onychis ♰ W. D. Pierce, 1951 | |
| Parajulus oregonensis Attems, 1903 | |
| Parajulus paiutus (Chamberlin, 1925) | ⇒ Aniulus paiutus Chamberlin, 1925 |
| Parajulus pennsylvanicus (Brandt, 1841) | ⇒ Parajulus impressus Say, 1821 |
| Parajulus perditus Chamberlin, 1920 | |
| Parajulus pueblanus Chamberlin, 1943 | |
| Parajulus robustior (Chamberlin, 1918) | ⇒ Ethojulus robustior Chamberlin, 1918 |
| Parajulus rosanus Chamberlin, 1943 | |
| Parajulus rossmani | |
| Parajulus rugosus (Bollman, 1887) | ⇒ Aliulus rugosus Bollman, 1887 |
| Parajulus schmidti Chamberlin, 1952 | |
| Parajulus texanus (Chamberlin, 1916) | ⇒ Hakiulus texensis Causey, 1952 |
| Parajulus varius Bollman, 1887 | |
| Parajulus venustus (Wood, 1864) | ⇒ Oriulus venustus Wood, 1864 |
| Parajulus victorianus (Chamberlin, 1916) | ⇒ Hakiulus victorianus Chamberlin, 1916 |
| Parajulus viganus Chamberlin, 1952 | |
| Parajulus volcanus | |
| Parajulus zempoalus Chamberlin, 1943 | |
| Parajulus zonatus Bollman, 1887 | |
| Pheniulus mimeticus Chamberlin, 1943 | Costate mountainsnail |
| Pheniulus phenotypus Chamberlin, 1943 | Costate mountainsnail |
| Pseudojulus carolinensis Shelley, 2004 | |
| Pseudojulus coastalis Shelley, 2004 | |
| Pseudojulus mississippiensis Shelley, 2007 | |
| Pseudojulus obtectus Bollman, 1887 | Mineral Creek mountainsnail |
| Ptyoiulus coveanus Chamberlin, 1943 | Costate mountainsnail |
| Ptyoiulus ectenes Bollman, 1887 | |
| Ptyoiulus georgiensis Chamberlin, 1943 | Costate mountainsnail |
| Ptyoiulus impressus (Say, 1821) | ⇒ Parajulus impressus Say, 1821 |
| Ptyoiulus pennsylvanicus (Brandt, 1841) | ⇒ Parajulus impressus Say, 1821 |
| Saiulus atlantus (Chamberlin, 1946) | ⇒ Uroblaniulus atlantus Chamberlin, 1946 |
| Saiulus fumans (Chamberlin, 1943) | ⇒ Uroblaniulus fumans Chamberlin, 1943 |
| Saiulus montanus (Hoffman, 1949) | ⇒ Uroblaniulus montanus Hoffman, 1949 |
| Saiulus setifer Chamberlin, 1940 | Cape Fear threetooth |
| Simiulus arius Chamberlin, 1918 | Sierra shoulderband |
| Sophiulus lomondus Chamberlin, 1941 | Deep Slide mountainsnail |
| Sophiulus tivius Chamberlin, 1912 | |
| Spathiulus elegantulus Causey, 1950 | |
| Spathiulus leptus Chamberlin, 1940 | Cape Fear threetooth |
| Spathiulus tribolus Chamberlin, 1941 | Deep Slide mountainsnail |
| Spathiulus tuolumnus Chamberlin, 1950 | Santa Cruz hesperian |
| Taijulus tiganus (Chamberlin, 1910) | ⇒ Bollmaniulus tiganus Chamberlin, 1910 |
| Teniulus parvior Chamberlin, 1951 | Anza shoulderband |
| Teniulus setosior Chamberlin, 1951 | Anza shoulderband |
| Thriniulus leucoclius Chamberlin, 1922 | |
| Thriniulus schachti Chamberlin, 1941 | |
| Tuniulus milpetanus (Chamberlin, 1940) | ⇒ Tuniulus milpitanus Chamberlin, 1940 |
| Tuniulus milpitanus Chamberlin, 1940 | Pallid mountainsnail |
| Tuniulus oregonensis Wood, 1864 | Grand Coulee mountainsnail |
| Uroblaniulus atlantus Chamberlin, 1946 | Rincon talussnail |
| Uroblaniulus canadensis Newport, 1844 | Mendocino shoulderband |
| Uroblaniulus caroliniensis Causey, 1953 | Apache talussnail |
| Uroblaniulus dixinus Chamberlin, 1951 | Anza shoulderband |
| Uroblaniulus exul Chamberlin, 1951 | Anza shoulderband |
| Uroblaniulus fumans Chamberlin, 1943 | Budded threetooth |
| Uroblaniulus idahoanus Chamberlin, 1950 | Pinnacles shoulderband |
| Uroblaniulus immaculatus (Wood, 1864) | ⇒ Uroblaniulus canadensis Newport, 1844 |
| Uroblaniulus jerseyi Causey, 1950 | |
| Uroblaniulus montanus Hoffman, 1949 | Escabrosa talussnail |
| Uroblaniulus sandersoni Causey, 1950 | |
| Uroblaniulus stolidus Causey, 1953 | Apache talussnail |
| Ziniulus aethes (Chamberlin, 1940) | ⇒ Gosiulus aethes Chamberlin, 1940 |
| Ziniulus ambiguus (Loomis, 1959) | ⇒ Gosiulus ambiguus Loomis, 1959 |
| Ziniulus medicolens (Chamberlin, 1940) | ⇒ Gosiulus medicolens Chamberlin, 1940 |
| Ziniulus nati (Loomis, 1963) | ⇒ Gosiulus nati Loomis, 1963 |
| Ziniulus navajo Chamberlin, 1943 | |
