| Aceratophallus calcehtokanus Chamberlin, 1938 | Bigtree shoulderband |
| Aceratophallus dux Chamberlin, 1914 | |
| Aceratophallus granulifer Chamberlin, 1952 | Schell Creek mountainsnail |
| Aceratophallus guatemalae Chamberlin, 1947 | Kyle Canyon mountainsnail |
| Aceratophallus hoctunanus Chamberlin, 1938 | Bigtree shoulderband |
| Aceratophallus lamellifer Brölemann, 1905 | Laguna shoulderband |
| Aceratophallus maya Loomis, 1964 | |
| Aceratophallus oxkutzcabus Chamberlin, 1938 | Bigtree shoulderband |
| Aceratophallus quadratus Loomis, 1961 | Shasta hesperian |
| Aceratophallus scutigeroides Shear, 1974 | Asian trampsnail |
| Aceratophallus sumucus Chamberlin, 1956 | Tollhouse Canyon talussnail |
| Aceratophallus unicolor Carl, 1902 | Kentish gardensnail |
| Aceratophyllus holtunanus | |
| Acutangulus alius Causey, 1973 | Northern threetooth |
| Acutangulus coccineus Humbert & Sa..., 1869 | Golden zachrysia |
| Acutangulus neglectus Carl, 1903 | |
| Acutangulus pictus Causey, 1973 | Northern threetooth |
| Acutangulus sororius Causey, 1973 | Northern threetooth |
| Ceuthauxus constans Causey, 1973 | Northern threetooth |
| Ceuthauxus cruzanus (Chamberlin, 1943) | ⇒ Strongylodesmus cruzanus Chamberlin, 1943 |
| Ceuthauxus galeanae Chamberlin, 1943 | Budded threetooth |
| Ceuthauxus hirsutipes (Loomis, 1968) | ⇒ Ceuthauxus nuevus Chamberlin, 1941 |
| Ceuthauxus mediator Chamberlin, 1947 | Kyle Canyon mountainsnail |
| Ceuthauxus morelus Chamberlin, 1943 | Costate mountainsnail |
| Ceuthauxus nuevus Chamberlin, 1941 | Surf shoulderband |
| Ceuthauxus palmitonus Chamberlin, 1942 | Coalinga shoulderband |
| Chromodesmus granulatus Loomis, 1966 | White desertsnail |
| Chromodesmus planus Loomis, 1976 | |
| Chromodesmus potosianus Chamberlin, 1947 | Chuckwalla Spring desertsnail |
| Chromodesmus viridis Loomis, 1976 | |
| Chromodesmus woodruffi Loomis, 1977 | |
| Cornalatus permutatus Attems, 1938 | |
| Cornalatus terrigena Attems, 1943 | |
| Curodesmus guatemalensis Chamberlin, 1922 | |
| Curodesmus vulcani Kraus, 1954 | Chiricahua mountainsnail |
| Diuncustoma cylindricum Shelley, 1997 | Empire Mountain talussnail |
| Dobrodesmus mirabilis Shear, Ferre..., 0 | |
| Euphallus dybasi (Chamberlin, 1952) | ⇒ Neoleptodesmus aztecus Saussure, 1859 |
| Metaphallus mimus Chamberlin, 1952 | Keys mudcloak |
| Mexidesmus harrisoni Causey, 1971 | Caribbean bivalved snail |
| Neoleptodesmus aztecus Saussure, 1859 | Pygmy mountainsnail |
| Neoleptodesmus dispersus (Chamberlin, 1943) | ⇒ Neoleptodesmus aztecus Saussure, 1859 |
| Neoleptodesmus dybasi Chamberlin, 1952 | |
| Neoleptodesmus geniculatus Kraus, 1954 | |
| Neoleptodesmus intermedius Humbert & Sa..., 1869 | Golden zachrysia |
| Neoleptodesmus orizabae Humbert & Sa..., 1869 | Golden zachrysia |
| Neoleptodesmus sinuatus Kraus, 1954 | |
| Neoleptodesmus sumichrasti Humbert & Sa..., 1869 | Golden zachrysia |
| Neoleptodesmus vermiformis Saussure, 1859 | Pygmy mountainsnail |
| Pararhachistes amblus Chamberlin, 1942 | Coalinga shoulderband |
| Pararhachistes elevatus Pocock, 1909 | Boulder slide threeband |
| Pararhachistes galeanae (Chamberlin, 1943) | ⇒ Ceuthauxus galeanae Chamberlin, 1943 |
| Pararhachistes nuevus (Chamberlin, 1941) | ⇒ Ceuthauxus nuevus Chamberlin, 1941 |
| Pararhachistes potosinus Chamberlin, 1943 | |
| Pararhachistes vertebratus Pocock, 1909 | Boulder slide threeband |
| Phorositus granulifer (Chamberlin, 1952) | ⇒ Aceratophallus granulifer Chamberlin, 1952 |
| Rachidomorpha bicolor (Brölemann, 1902) | ⇒ Rhachidomorpha bicolor Brölemann, 1902 |
| Rachidomorpha brasiliae (Brölemann, 1901) | ⇒ Rhachidomorpha brasiliae Brölemann, 1902 |
| Rhachidomorpha adunca Saussure & H..., 1872 | Net-foot seahare |
| Rhachidomorpha aurantium Chamberlin, 1952 | |
| Rhachidomorpha bicolor Brölemann, 1902 | |
| Rhachidomorpha brasiliae Brölemann, 1902 | |
| Rhachidomorpha tarasca DeSaussure, 1860 | Dos Cabezas talussnail |
| Rhachidomorpha tarascus Saussure, 1860 | |
| Rhachidomorpha vicinus Chamberlin, 1943 | |
| Rhachodesmus digitatus Causey, 1973 | Northern threetooth |
| Rhachodesmus viridis Saussure, 1859 | Pygmy mountainsnail |
| Strongylodesmus conspicuus Causey, 1973 | Northern threetooth |
| Strongylodesmus cruzanus Chamberlin, 1943 | Budded threetooth |
| Strongylodesmus cyaneus Saussure, 1859 | |
| Strongylodesmus geddesi Pocock, 1909 | Boulder slide threeband |
| Strongylodesmus granulatus (Loomis, 1966) | ⇒ Chromodesmus granulatus Loomis, 1966 |
| Strongylodesmus harrisoni (Causey, 1971) | ⇒ Mexidesmus harrisoni Causey, 1971 |
| Tancitares michoacanus Chamberlin, 1942 | Coalinga shoulderband |
| Teinorhachis tenuis Loomis, 1961 | Shasta hesperian |
| Tiphallus aberrans Chamberlin, 1952 | |
| Tiphallus alberti Causey, 1973 | |
| Tiphallus frivolus Causey, 1973 | |
| Unculabes arganoi Shear, 1974 | Asian trampsnail |
| Unculabes causeyae Shear, 1974 | Asian trampsnail |
| Unculabes columbinus Causey, 1973 | Northern threetooth |
| Unculabes crispus Causey, 1971 | Erskine Creek shoulderband |
| Unculabes porrensis Shear, 1974 | Asian trampsnail |
| Unculabes versatilis (Causey, 1971) | ⇒ Unculabes crispus Causey, 1971 |
