Amnicola protea A. Gould, 1855 accepted as Tryonia porrecta (Mighels, 1845) (source of synonymy)
Bythinella aequicostata Pilsbry, 1890 accepted as Tryonia aequicostata (Pilsbry, 1890) (new combination reference)
Calipyrgula Pilsbry, 1934 † accepted as Tryonia W. Stimpson, 1865 (source of synonymy)
Durangonella kosteri (D. W. Taylor, 1987) accepted as Juturnia kosteri (D. W. Taylor, 1987) (basis of record)
Ipnobius Hershler, 2001 (original description)
Ipnobius robustus (Hershler, 1989) (basis of record)
Pseudotryonia Hershler, 2001 (original description)
Pseudotryonia alamosae (D. W. Taylor, 1987) (new combination reference)
Pseudotryonia brevissima (Pilsbry, 1890) (new combination reference)
Tryonia cheatumi (Pilsbry, 1935) (additional source)
Tryonia circumstriata (A. B. Leonard & Ho, 1960) (additional source)
Tryonia elata Hershler & Sada, 1987 (additional source)
Tryonia ericae Hershler & Sada, 1987 (basis of record)
Tryonia gilae D. W. Taylor, 1987 (additional source)
Tryonia margae Hershler, 1989 (additional source)
Tryonia monitorae Hershler, 1999 (additional source)
Tryonia quitobaquitae Hershler, 1988 (additional source)
Tryonia rowlandsi Hershler, 1989 (additional source)
Tryonia salina Hershler, 1989 (basis of record)
Tryonia stocktonensis D. W. Taylor, 1987 accepted as Tryonia circumstriata (A. B. Leonard & Ho, 1960) (source of synonymy)
Tryonia variegata Hershler & Sada, 1987 (additional source)

 Distribution

 for Ipnobius robustus (Hershler, 1989)

Endemic to type locality and nearby Travertine Springs, lower Amargosa River basin, California [details]

 Distribution

 for Tryonia margae Hershler, 1989

Endemic to type locality area, Amargosa River basin, California. [details]

 Distribution

 for Tryonia rowlandsi Hershler, 1989

Endemic to type locality area, Amargosa River basin, California [details]