Amnipila Pilsbry, 1956 (basis of record)
Pachychilus (Oxymelania) apheles F. G. Thompson, 1967 represented as Pachychilus apheles F. G. Thompson, 1967 (basis of record)
Pachychilus (Oxymelania) corpulentus F. G. Thompson, 1967 represented as Pachychilus corpulentus F. G. Thompson, 1967 (basis of record)
Pachychilus apis (I. Lea & H. C. Lea, 1851) (basis of record)
Pachychilus chrysalis (Brot, 1872) (basis of record)
Pachychilus cinereus (Morelet, 1849) (basis of record)
Pachychilus corvinus (Morelet, 1849) (basis of record)
Pachychilus dalli Pilsbry, 1896 (basis of record)
Pachychilus gassiesii (Reeve, 1860) (basis of record)
Pachychilus godmanni (Tristram, 1863) (basis of record)
Pachychilus gracilis Tristram, 1864 (basis of record)
Pachychilus hellerii (Brot, 1872) (basis of record)
Pachychilus hinkleyi (W. B. Marshall, 1920) (basis of record)
Pachychilus intermedius (von dem Busch, 1844) (basis of record)
Pachychilus jansoni H. Adams, 1871 (basis of record)
Pachychilus lacustris (Morelet, 1849) (basis of record)
Pachychilus largillierti (R. A. Philippi, 1843) (basis of record)
Pachychilus liebmanni (R. A. Philippi, 1848) (basis of record)
Pachychilus monachus Pilsbry & Hinkley, 1910 (additional source)
Pachychilus olssoni Pilsbry, 1950 (basis of record)
Pachychilus panucula (Morelet, 1851) (basis of record)
Pachychilus pasionensis Pilsbry, 1956 (basis of record)
Pachychilus planensis (I. Lea, 1858) (basis of record)
Pachychilus pottsianus Hinkley, 1920 (basis of record)
Pachychilus salvini (Tristram, 1864) (basis of record)
Pachychilus sargi (Crosse & P. Fischer, 1875) (basis of record)
Pachychilus subexaratus Crosse & P. Fischer, 1891 (subsequent type designation)
Pachychilus subexaratus Crosse & P. Fischer, 1891 (additional source)
Pachychilus subnodosus (R. A. Philippi, 1847) (basis of record)
Pachychilus turati (A. Villa & G. B. Villa, 1854) (basis of record)