| Aceratophallus calcehtokanus Chamberlin, 1938 | Bigtree shoulderband |
| Aceratophallus hoctunanus Chamberlin, 1938 | Bigtree shoulderband |
| Aceratophallus maya Loomis, 1964 | |
| Aceratophallus oxkutzcabus Chamberlin, 1938 | Bigtree shoulderband |
| 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 |
| Amplinus bituberculosus Loomis, 1973 | |
| Amplinus bitumidus Loomis, 1969 | |
| Amplinus crenus Chamberlin, 1943 | |
| Amplinus eutypus Chamberlin, 1952 | |
| Amplinus fontinus Chamberlin, 1952 | |
| Amplinus fortinus | |
| Amplinus intermittens Causey, 1954 | Sonoma shoulderband |
| Amplinus klugi Brandt, 1839 | |
| Amplinus klugii Brandt, 1839 | Heath helicellid |
| Amplinus leon Chamberlin, 1952 | Keys mudcloak |
| Amplinus palicaudatus Attems, 1901 | |
| Amplinus pococki Cook, 1911 | Orocopia desertsnail |
| Amplinus tapachulae Chamberlin, 1943 | Costate mountainsnail |
| Amplinus vergelanus Chamberlin, 1943 | Costate mountainsnail |
| Amplinus xelitlus Chamberlin, 1943 | |
| Amplinus xilitlus Chamberlin, 1943 | Costate mountainsnail |
| Anbarrhacus adamantis ♰ F. Riquelme, 2014 | |
| Aphelidesmus cerefluens | |
| Auturus louisianus phanus Chamberlin, 1942 | |
| Bonetesmus novenus (Causey, 1971) | ⇒ Bonetesmus verus Chamberlin, 1942 |
| Bonetesmus ojo Shear, 1974 | Asian trampsnail |
| Bonetesmus soileauae Shear, 1982 | Texas threetooth |
| Bonetesmus verus Chamberlin, 1942 | Coalinga shoulderband |
| 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 morelus Chamberlin, 1943 | Costate mountainsnail |
| Ceuthauxus nuevus Chamberlin, 1941 | Surf shoulderband |
| Ceuthauxus palmitonus Chamberlin, 1942 | Coalinga shoulderband |
| Chondrodesmus nannus Chamberlin, 1943 | Costate mountainsnail |
| Chondrodesmus sabachanus Chamberlin, 1938 | Bigtree shoulderband |
| Chromodesmus granulatus Loomis, 1966 | White desertsnail |
| Chromodesmus potosianus Chamberlin, 1947 | Chuckwalla Spring desertsnail |
| Chromodesmus woodruffi Loomis, 1977 | |
| Cibularia acuaria (Attems, 1931) | ⇒ Stenodesmus acuarius Attems, 1931 |
| Colobodesmus cobanus (Chamberlin, 1952) | ⇒ Sphaeriodesmus cobanus Chamberlin, 1952 |
| Cruzodesmus browni (Chamberlin, 1943) | ⇒ Stenodesmus acuarius Attems, 1931 |
| Cruzodesmus ergus Chamberlin, 1943 | |
| Cruzodesmus purojenus (Chamberlin, 1943) | ⇒ Stenodesmus simillimus Humbert & Sa..., 1869 |
| Cyclodesmus aztecus Humbert & Sa..., 1869 | Richinbar talussnail |
| Cylionus gracilis Humbert & Sa..., 1869 | Golden zachrysia |
| Cylionus kauanus Chamberlin, 1938 | Bigtree shoulderband |
| Cyphodesmus bifidus Silvestri, 1910 | |
| Cyphodesmus hidalgonus Chamberlin, 1943 | Costate mountainsnail |
| Cyphodesmus mexicanus Saussure, 1859 | Pygmy mountainsnail |
| Dampfaria dampfi (Verhoeff, 1932) | ⇒ Rhysodesmus dampfi Verhoeff, 1932 |
| Desmonus acclivus Loomis, 1966 | White desertsnail |
| Diuncustoma cylindricum Shelley, 1997 | Empire Mountain talussnail |
| Euphallus dybasi (Chamberlin, 1952) | ⇒ Neoleptodesmus aztecus Saussure, 1859 |
| Euryurus amycus Hoffman, 1978 | Milk snail |
| Euryurus leachii Gray, 1832 | Milk snail |
| Eusphaeriodesmus stylifer Pocock, 1909 | |
| Koreoaria amoea | |
| Maatidesmus paachtun ♰ F. Riquelme, 2014 | |
| Melaphe apamea Hoffman & Lo..., 1968 | |
| Melaphe castianeira Hoffman & Lo..., 1968 | |
| 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 orizabae Humbert & Sa..., 1869 | Golden zachrysia |
| Neoleptodesmus sumichrasti Humbert & Sa..., 1869 | Golden zachrysia |
| Neoleptodesmus vermiformis Saussure, 1859 | Pygmy mountainsnail |
| Pachyurus klugii (Brandt, 1839) | ⇒ Amplinus klugii Brandt, 1839 |
| Pachyurus palicaudatus (Attems, 1901) | ⇒ Amplinus palicaudatus Attems, 1901 |
| Pararhachistes amblus Chamberlin, 1942 | Coalinga shoulderband |
| Pararhachistes galeanae (Chamberlin, 1943) | ⇒ Ceuthauxus galeanae Chamberlin, 1943 |
| Pararhachistes nuevus (Chamberlin, 1941) | ⇒ Ceuthauxus nuevus Chamberlin, 1941 |
| Pararhachistes potosinus Chamberlin, 1943 | |
| Platyrhacus bilineatus Lucas, 1840 | |
| Platyrhacus helophorus Attems, 1899 | |
| Platyrrhacus mexicanus Lucas, 1840 | |
| Polylepiscus burgeri Causey, 1954 | Sonoma shoulderband |
| Polylepiscus campanulae Hoffman, 1962 | |
| Polylepiscus heterosculptus pococki Hoffman, 1954 | |
| Rhachidomorpha adunca Saussure & H..., 1872 | Net-foot seahare |
| Rhachidomorpha aurantium Chamberlin, 1952 | |
| 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 |
| Rhaphandra brunnea Loomis, 1966 | Hacheta mountainsnail |
| Rhysodesmus acolhuus Humbert & Sa..., 1869 | Golden zachrysia |
| Rhysodesmus alpuyecus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus amplinus (Chamberlin, 1952) | ⇒ Rhysodesmus toltecus Saussure, 1859 |
| Rhysodesmus angustus Loomis, 1966 | Hacheta mountainsnail |
| Rhysodesmus bolivari Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus bonus Chamberlin, 1943 | |
| Rhysodesmus brachus (Chamberlin, 1941) | ⇒ Rhysodesmus texicolens Chamberlin, 1938 |
| Rhysodesmus consobrinus Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus constrictor | |
| Rhysodesmus constrictus Loomis, 1966 | Hacheta mountainsnail |
| Rhysodesmus coriaceus Loomis, 1968 | Boulder Pile mountainsnail |
| Rhysodesmus cuernavacae Chamberlin, 1942 | Coalinga shoulderband |
| Rhysodesmus cumbres Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus dampfi Verhoeff, 1932 | |
| Rhysodesmus dasypus Gervais, 1847 | |
| Rhysodesmus elestribus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus esperanzae Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus eunis Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus eusculptus Chamberlin, 1941 | Deep Slide mountainsnail |
| Rhysodesmus eutypus (Chamberlin, 1943) | ⇒ Rhysodesmus dampfi Verhoeff, 1932 |
| Rhysodesmus fraternus Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus frionus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus garcianus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus guardanus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus intermedius Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus knighti Chamberlin, 1941 | Deep Slide mountainsnail |
| Rhysodesmus latus Loomis, 1968 | Boulder Pile mountainsnail |
| Rhysodesmus leonensis Chamberlin, 1941 | Deep Slide mountainsnail |
| Rhysodesmus limax (Saussure, 1859) | ⇒ Rhysodesmus dasypus Gervais, 1847 |
| Rhysodesmus malinche Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus mayanus Chamberlin, 1925 | |
| Rhysodesmus minor Chamberlin, 1943 | Budded threetooth |
| Rhysodesmus montezumae Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus morelus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus mystecus Humbert & Sa..., 1869 | Golden zachrysia |
| Rhysodesmus oaxacanus | |
| Rhysodesmus otomitus Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus pater (Chamberlin, 1943) | ⇒ Rhysodesmus tepanecus Saussure, 1859 |
| Rhysodesmus perotenus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus perotinus | |
| Rhysodesmus potosianus Chamberlin, 1942 | Coalinga shoulderband |
| Rhysodesmus rubrimarginis Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus sandersi Causey, 1954 | Sonoma shoulderband |
| Rhysodesmus semiovatus Loomis, 1966 | Hacheta mountainsnail |
| Rhysodesmus seriatus Chamberlin, 1947 | Kyle Canyon mountainsnail |
| Rhysodesmus tacubayae Pocock, 1909 | Costate mountainsnail |
| Rhysodesmus tepanecus Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus tepoztlanus Chamberlin, 1943 | Costate mountainsnail |
| Rhysodesmus texicolens Chamberlin, 1938 | San Lorenzo shoulderband |
| Rhysodesmus toltecus Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus totonacus Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus viabilis (Chamberlin, 1943) | ⇒ Rhysodesmus texicolens Chamberlin, 1938 |
| Rhysodesmus vicinus Saussure, 1859 | Pygmy mountainsnail |
| Rhysodesmus zapotecus Saussure, 1860 | Fringed mountainsnail |
| Rhysodesmus zendalus Humbert & Sa..., 1869 | Golden zachrysia |
| Seminellogon bituberculosus Loomis, 1973 | Brown-streak stiliger |
| Sigmoria latior Shelley, 1976 | Little talussnail |
| Sphaeriodesmus coriaceus Pocock, 1909 | Boulder slide threeband |
| Sphaeriodesmus cruzbelem Shear, 1974 | Asian trampsnail |
| Sphaeriodesmus golondrinensis Shear, 1974 | Asian trampsnail |
| Sphaeriodesmus griseus Chamberlin, 1943 | Costate mountainsnail |
| Sphaeriodesmus longibubus | |
| Sphaeriodesmus longitubus Loomis, 1963 | Wreathed cactussnail |
| Sphaeriodesmus mexicanus Saussure, 1859 | Pygmy mountainsnail |
| Sphaeriodesmus michoacanus Chamberlin, 1942 | Coalinga shoulderband |
| Sphaeriodesmus neglectus Carl, 1902 | Kentish gardensnail |
| Sphaeriodesmus nortoni Shear, 1974 | Asian trampsnail |
| Sphaeriodesmus robertsoni Shear, 1986 | Dished threetooth |
| Sphaeriodesmus salto Shear, 1974 | Asian trampsnail |
| Sphaeriodesmus saussurei Attems, 1899 | Hansine seaslug |
| Sphaeriodesmus zontehuitz Shear, 1974 | Asian trampsnail |
| Stenodesmus acuarius Attems, 1931 | |
| Stenodesmus mexicanus Saussure, 1859 | |
| Stenodesmus simillimus Humbert & Sa..., 1869 | Golden zachrysia |
| Stilbopagus acclivus (Loomis, 1966) | ⇒ Desmonus acclivus Loomis, 1966 |
| 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 |
| Taphrodesmus vestitus Silvestri, 1910 | |
| Tetraporosoma seriata (Loomis, 1966) | ⇒ Tetraporosoma seriatum Loomis, 1966 |
| Tetraporosoma seriatum Loomis, 1966 | |
| 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 |
| Zeuctodesmus ferrugineus Chamberlin, 1942 | Coalinga shoulderband |
